Alunos canhotos de odontologia da cidade de Uberlândia: perfil, ergonomia e dores osteomusculares / Left-handed dentistry students in the city of Uberlândia: profile, ergonomics and muscular pain

Os dentistas são um grupo de alto risco para o desenvolvimento de doenças de desordens musculoesqueléticas e tendo em vista que o sistema de produção industrial desenvolve produtos que atendem a maioria da população destra, os estudantes canhotos precisam se adequar a uma formação acadêmica, usando instrumentais, cadeiras odontológicas eoutros objetos projetados para destros. O presente trabalho teve como objetivo a coletade informações sobre os canhotos nos cursos de Odontologia da cidade de Uberlândia ­Minas Gerais. Foram incluídos todos os alunos canhotos matriculados no ano de 2022 e que estavam cursando ou já cursaram disciplinas com atividades laboratoriais ou clínicas. Questionários foram aplicados para identificação do perfil, das dificuldades, da ergonomia e das dores osteomusculares dos alunos canhotos em suas atividades. Os dados foram em seguida tabulados e passaram por análise estatística. Da quantidade total de alunos das três instituições (n=1.578), foram entrevistados 45 (2,8%) alunos canhotos, sendo a maioria feminina (80%), na qual identificou-se um posicionamento inadequado do operador canhoto quando comparado ao preconizado pela ISO-FDI, além da limitação de movimento na presença de auxiliar (82,2%). Os locais com maior frequência de dor/desconforto foram: pescoço (79%), costas superior esquerda (63%) e inferior esquerda (61%) e punhos/ mãos esquerda (56%). A intensidade da dor variou entre alguma, moderada e bastante. O impedimento de realizar atividades diárias foi relatado por 17% dos alunos (n=7) e destes somente 1 buscou atendimento médico. Não houve diferença estatística na comparação entre instituição pública e privada. Diante dos resultados, concluiu-se que os canhotos representam minoria dos alunos de Odontologia e apresentam várias regiões de dor/ desconforto devido às adaptações e posturas erradas durante os atendimentos. Apesar de grande parte apresentar dor, poucos tiveram impedimento de atividades rotineiras ou procuraram ajuda médica(AU)

Dentists are a high risk group for the development of musculoskeletal disorders and considering that the industrial production system develops products that serve the majority of the right-handed population, lefthanded students need to adapt to an academic training, using instruments, dental chairs and other objects designed for right-handers. This study aimed to collect information about left-handers in Dentistry courses in the city of Uberlândia - Minas Gerais. All left- handed students enrolled in the year 2022 and who were taking or had taken courses with laboratory or clinical activities were included. Questionnaires were applied to identify the profile, difficulties, ergonomics and musculoskeletal pain of left-handed students in their activities. The data were tabulated and then undergo statistical analysis. Of the total number of students from the three institutions (n=1,578), 45 (2.8%) left-handed students were interviewed, the majority being female (80%), in which an inadequate positioning of the left-handed operator was identified when compared to the recommended one by ISO-FDI, in addition to limitation of movement in the presence of an assistant (82.2%). The places with the highest frequency of pain/discomfort were: neck (79%), upper left back (63%) and lower left back (61%) and left wrists/hands (56%). The intensity of pain varied between some, moderate and a lot. The impediment to carrying out daily activities was reported by 17% of the students (n=7) and of these, only 1 sought medical attention. There was no statistical difference when comparing public and private institutions. In view of the results, it was concluded that left-handers represent a minority of dentistry students and have several regions of pain/discomfort due to adaptations and wrong postures during consultations. Although most of them had pain, few were prevented from performing routine activities or sought medical help(AU)

Morphology and Morphometry of the Dorsal Interosseous Muscles of the Hand: Laterality and Sexual Dimorphism / Morfología y Morfometría de los Músculos Interóseos Dorsales de la Mano: Lateralidad y Dimorfismo Sexual

SUMMARY: The dorsal interosseous muscles (DIM) are intrinsic muscles of the hand located dorsally between metacarpal bones, which play a role in finger abduction. Anatomical variations of these muscles in terms of form and length have been well documented, but variations regarding sex and laterality are underexplored. The aim of this study was to investigate the morphology and morphometry of the DIM of the hand regarding sexual dimorphism and laterality. Twenty human cadavers belonging to the white individuals (n = 40 hands) with known sex and laterality were used for this study. DIMs were dissected and observed for morphology. Also, a digital calliper was used to measure the midpoint length of the DIM. The origin and insertion of all the DIM were normal with the left hand having no additional, supernumerary, and absent muscles in each compartment. The variations were only found on the right side and predominant in females: 2 out of 11 (18.18%) hands containing a space with a supernumerary muscle; 1 out of 11 (9.09%) hands having a space with a double muscle; and 1 out of 11 (9.09%) hands having a compartment with a unipennate muscle. In males, 1 out of 9 (11.11%) hands had a compartment with a supernumerary muscle. The mean midpoint length of each muscle in females and males in both hands from the first to the fourth muscle, respectively, was documented. In females on the left: 46.79 ± 3.56; 42.62 ± 3.57; 49.02 ± 4.21; 41.66 ± 2.15 and right: 47.30 ± 2.49; 39.27 ± 4.14; 45.69 ± 4.64; 38.12 ± 4.08. In males, it was on the left: 50.01 ± 3.95; 41.98 ± 3.79; 47.90 ± 4.83; 41.79 ± 4.25, and on the right: 46.65 ± 2.09; 39.01 ± 4.25; 47.47 ± 3.41; 38.31 ± 4.40. The mean midpoint length of the DIM was relatively higher on the left hand compared to the right hand in both females and males. In this study, variations regarding the supernumerary muscle, double interosseous space, and unipennate muscles were only observed on the right-hand side and predominantly in females, an insight that may guide in the treatment of fractures, stiffness of the hand, and compartment syndromes.

Los músculos interóseos dorsales (DIM) son músculos intrínsecos de la mano ubicados dorsalmente entre los huesos metacarpianos, que desempeñan un papel en la abducción de los dedos. Las variaciones anatómicas de estos músculos en términos de forma y longitud están bien documentadas, pero las variaciones con respecto al sexo y la lateralidad están poco exploradas. El objetivo de este estudio fue investigar la morfología y morfometría de los DIM de la mano con respecto al dimorfismo sexual y la lateralidad. Para este estudio se utilizaron veinte cadáveres humanos pertenecientes a individuos blancos (n = 40 manos) con sexo y lateralidad conocidos. Los DIM se diseccionaron y observaron para determinar su morfología. Además, se utilizó un calibrador digital para medir la longitud del punto medio del DIM. El origen y la inserción de todos los DIM fueron normales y la mano izquierda no tenía músculos adicionales, supernumerarios y ausentes en cada compartimento. Las variaciones se encontraron sólo en el lado derecho y predominaron en el sexo femenino: 2 de 11 (18,18%) manos contenían un espacio con un músculo supernumerario; 1 de cada 11 (9,09%) manos presentando un espacio con doble músculo; y 1 de cada 11 (9,09%) manos presentaba un compartimento con músculo unipenate. En los hombres, 1 de cada 9 (11.11%) manos tenía un compartimento con un músculo supernumerario. Se documentó la longitud media del punto medio de cada músculo en mujeres y hombres en ambas manos desde el primer al cuarto músculo, respectivamente. En mujeres de izquierda: 46,79 ± 3,56; 42,62 ± 3,57; 49,02 ± 4,21; 41,66 ± 2,15 y derecha: 47,30 ± 2,49; 39,27 ± 4,14; 45,69 ± 4,64; 38,12 ± 4,08. En los varones fue hacia la izquierda: 50,01 ± 3,95; 41,98 ± 3,79; 47,90 ± 4,83; 41,79 ± 4,25, y a la derecha: 46,65 ± 2,09; 39,01 ± 4,25; 47,47 ± 3,41; 38,31 ± 4,40. La longitud media del punto medio del DIM fue relativamente mayor en la mano izquierda en comparación con la derecha tanto en mujeres como en hombres. En este estudio, las variaciones con respecto al músculo supernumerario, el doble espacio interóseo y los músculos unipennados sólo se observaron en el lado derecho y predominantemente en el sexo femenino, un conocimiento que puede guiar en el tratamiento de fracturas, rigidez de la mano y síndromes compartimentales.

Riesgo neuropsicológico en epilepsia del lóbulo temporal / Neuropsychological risk in temporal lobe epilepsy

Introducción: Los síntomas neuropsicológicos son una preocupación importante para los pacientes con epilepsia y pueden llegar a ser muy influyentes en la percepción de calidad de vida. En el caso de la epilepsia del lóbulo temporal, existen muchas variables que influyen en el desempeño cognitivo de los pacientes, entre las más importantes se encuentran la etiología, la edad de inicio, la duración de la enfermedad y la frecuencia de crisis; sin embargo, una de las variables más importantes es la lateralidad de la epilepsia. Está claramente demostrado que los síntomas cognitivos de la epilepsia del lóbulo temporal varían en función del hemisferio cerebral afectado. Contenido: La epilepsia del lóbulo temporal es una de las principales epilepsias focales que es susceptible de manejo quirúrgico, y, en este sentido, el tipo de procedimiento también tiene una gran importancia en el desenlace cognitivo de estos pacientes. En este artículo, realizamos una revisión narrativa de la literatura, con el objetivo de describir el riesgo neuropsicológico relacionado no solamente con la epilepsia del lóbulo temporal per se, sino también con las intervenciones quirúrgicas que se realizan en pacientes refractarios a la medicación. Conclusiones: Es importante conocer los conceptos sobre las implicaciones del impacto cognitivo en los pacientes con epilepsia del lóbulo temporal antes de tomar decisiones quirúrgicas en pacientes refractarios, así como entender que el tipo de cirugía también influye en su desempeño cognitivo. Se debe buscar un equilibrio entre la libertad de crisis y las posibles secuelas neuropsicológicas posquirúrgicas.

Introduction: Neuropsychological symptoms are a major concern for patients with epilepsy and can highly influence the perception of quality of life. In the case of temporal lobe epilepsy, there are many variables that impact the cognitive performance of these people, among the most important are the etiology, the age of onset, the duration of the disease and the frequency of seizures, however, one of the most important variables is the lateralization of the seizure. It has been demonstrated that the cognitive symptoms of temporal lobe epilepsy vary depending on the affected cerebral hemisphere. Contents of the review: Temporal lobe epilepsy is one of the main focal epilepsies that is susceptible to surgical management, and the type of surgery also has great importance in the cognitive outcomes of these patients. In this article, we carry out a narrative review of the literature in order to describe the neuropsychological risk related not only to temporal lobe epilepsy per se, but also to surgical interventions performed in drug-resistant patients. Conclusions: It is important to know the concepts about the implications of cognitive impact in patients with temporal lobe epilepsy before making surgical decisions in refractory patients and to understand that the type of surgery also influences the cognitive performance of these patients. A balance must be sought between the freedom of seizures and the possible postoperative neuropsychological sequelae.

Futuros cirurgiões-dentistas canhotos graduandos da Universidade Federal de Uberlândia: perfil, dificuldades e dores osteomusculares / Future left-handed dentists graduating from the Federal University of Uberlândia: profile, difficulties and musculoskeletal pain

Os indivíduos canhotos necessitam de utensílios para concretização de suas atividades diárias, bem como, para o exercício da prática odontológica onde a escassez de equipamentos específicos pode refletir em desgaste corporal, com isso, o presente trabalho tem por objetivo identificar os estudantes canhotos do curso de Odontologia da Universidade Federal de Uberlândia além de identificar suas dificuldades, queixas e locais de dores osteomusculares nas atividades laboratoriais e clínicas. Métodos: Foram incluídos todos os alunos canhotos matriculados no ano de 2021. Foram aplicados questionários on line para coletar os dados dos alunos. Resultados: Foram tabulados e como resultados, encontrou-se que os canhotos representam 5,6% do total de alunos do curso de Odontologia, a maioria são mulheres (66,7%), com média de idade de 21 anos. O segundo período foi o que apresentou maior número de canhotos (25%). As atividades práticas do curso, estas foram cursadas por 91,7% dos entrevistados, que relataram com maior frequência usar a mão esquerda (62,5%), sentar na posição de 1 hora (20,8%) e ter maior dificuldade ao tratar o quadrante superior direito (45,8%). Os locais mais citados de dores osteomusculares após realizar essas atividades, foram: punhos e mãos (62,5%), parte inferior das costas (62,5%) e pescoço (58,3%). Conclusão: Os canhotos representam a minoria dos alunos e suas dificuldades são, a falta de estrutura física adequada e a incompreensão das pessoas ao redor. Em relação a queixa de dor ou desconforto, mãos, punhos, parte inferior das costas e pescoço foram os membros mais citados no estudo(AU)

Left-handed individuals need tools to carry out their daily activities, as well as for the exercise of dental practice where the scarcity of specific equipment can reflect on body wear, with this, the present work aims to identify left-handed students of the course of Dentistry at the Federal University of Uberlândia, in addition to identifying their difficulties, complaints and sites of musculoskeletal pain in laboratory and clinical activities. Methods: All left-handed students enrolled in the year 2021 were included, and three questionnaires were applied online to identify the profile of students and the difficulties encountered in laboratory and clinical practice. Results: They were tabulated and as a result, it was found that left-handers represent 5.6% of the total number of students in the Dentistry course, most of them are women (66.7%), with a mean age of 21 years. The second period was the one with the highest number of left-handers (25%). The practical activities of the course were carried out by 91.7% of the interviewees, who reported more frequently using their left hand (62.5%), sitting in the 1 o'clock position (20.8%) and having greater difficulty when treat the upper right quadrant (45.8%). The most cited sites of musculoskeletal pain after performing these activities were: wrists and hands (62.5%), lower back (62.5%) and neck (58.3%). Conclusion: Lefthanded people represent the minority of students, and their difficulties are the lack of adequate physical structure and the misunderstanding of the people around them. In relation to complaints of pain or discomfort, hands, wrists, lower back and neck were the most cited members in the study(AU)

Association between Facial Types and Handedness among Students of Faculty of Basic Medical Sciences Bayero University, Kano

Background: Generally, a person's dominant hand is a simple and precise determinant of his preference for hand use in fine manual tasks. The main tools used in forensics are derived from the relationships between anthropometric features with important physical and /or biological traits. Objective: This study was to determine the association between facial types and handedness among students of the Faculty of Basic Medical Sciences of Bayero University, Kano. Methodology: Cross-sectional study design with a consecutive sampling of 400 (180 males and 220 females) students (aged 18 and above) of the Faculty of Basic Medical Sciences Bayero University, Kano was carried out. Facial height (FH) and facial width (FW) were measured using established landmarks and the facial index (FI) was calculated from them. The dominant handedness of each participant was determined using the writing component of the Edinburgh Handedness Inventory. This procedure involved asking the participants to mention which of their hands was dominant. The participant was then asked to write a sentence regarding the activitieshe/she was carrying out at the point of recruitment to ascertain the claim made by the participants. The sentence was written separately using each hand. All the data obtained were analyzed using statistical software (SPSS version 20.0). Results: The study population was relatively young (21.76 ± 2.77 years). Right-handedness was the commonest hand dominance observed in both males (90.7%) and females (91.7%). The commonest types of face were the hypereuriproscopic 2 (0.5%), Euriproscopic 41 (10.3%), Mesoproscopic 78 (19.5%), Leptoproscopic 127 (31.8%) and Hyperleptoproscopic 152 (37%) facial types. The majority of the participants were right-handed and this was regardless of gender. The prediction of handedness based on facial types (ꭕ2 = 1.39, Df =3, P = 0.85) or facial index (P = 0.92, OR=0.99, CI = 0.82 ­ 1.19) was not statistically significant. Conclusion: The facial types identified among the study population were not associated with their handedness and thus it was not a good predictor of handedness

Notas sobre o pesquisar em cena(s) / Notes on researching in scenes / Notas sobre la investigación en escena(s)

O presente artigo tem como objetivo apresentar a construção metodológica desenvolvida em uma pesquisa de mestrado, na qual sustentamos a escrita de cenas como método de pesquisa da escuta clínica. As cenas do trabalho em questão foram recolhidas ao longo do tempo, no contorno da experiência de um projeto de extensão universitária de atenção à infância e adolescência em situação de vulnerabilidade social, situado em uma comunidade periférica. Apresentamos, neste texto, as interrogações que se elaboraram em torno da escolha pelo trabalho com cenas, e compartilhamos o resgate histórico dessas como um método de escrever a clínica, bem como a retomada de sua análise a partir da tradição psicanalítica. Amparadas nesta teoria e em leituras e contribuições do filósofo francês Jacques Derrida, embasamos a noção de que a cena se constitui como um lugar de produção, ao engendrar a configuração particular de elementos significantes nos processos de subjetivação e de construção social. A cena não é, então, compreendida aqui como uma representação do que acontece na clínica, mas como um modo de produzir a escuta e os seus processos de investigação.(AU)

This article aims to present the methodological construction developed in a master's research, in which the writing of scenes as a method of clinical listening research was endorsed. The scenes from the study in question were collected over time, from the experience gained in a project conducted within a university extension program on care in childhood and adolescence in social vulnerability, in a peripheral community. In this study, we present some questions that were elaborated surrounding the choices of working with scenes; and we share the historical rescue of this work as a method of writing on clinic practices and resuming their analysis from the psychoanalytic tradition. Based on the psychoanalytic theory and on the readings and contributions of the French philosopher Jacques Derrida, we corroborate the notion that the scene is constituted as a place of production, engendering the particular configuration of significant elements in the processes of subjectivation and social construction. Here, the scene is not a representation of clinical practice but one mode of producing listening and its research processes.(AU)

Este artículo tiene como objetivo presentar la construcción metodológica desarrollada en una investigación de maestría, en la que sostenemos la escritura de escenas como método de investigación de la escucha clínica. Las escenas del trabajo en cuestión se recogieron a lo largo del tiempo desde la experiencia en un proyecto de extensión universitario de atención a la niñez y adolescencia en situación de vulnerabilidad social aplicado en una comunidad periférica. En este texto, presentamos los interrogantes que se elaboraron en torno a la elección por el trabajo con escenas y compartimos el rescate histórico de las mismas como un método de escribir la clínica y la reanudación del análisis a partir de la tradición psicoanalítica. Amparadas en el psicoanálisis y en lecturas y contribuciones del filósofo francés Jacques Derrida, nos basaremos en la noción de que la escena se constituye como un lugar de producción, engendrando la configuración particular de elementos significantes en los procesos de subjetivación y de construcción social. La escena no es aquí una representación de lo que pasa en la clínica, sino un modo de producir escucha y sus procesos de investigación.(AU)

Análise de indicadores antropométricos em indivíduos com e sem síndrome de Down / Analysis of anthropometric indicators in individuals with and without Down syndrome

Objetivo: este estudo buscou averiguar a possível discrepância bilateral de indicadores antropométricos de pessoas com e sem síndrome de Down (SD). Material e Método: para tal, contou-se com a participação de 60 indivíduos com e sem síndrome de Down, com idades entre 11 e 14 anos, que foram avaliados quanto à dominância lateral, dobras cutâneas, percentual de gordura, circunferência muscular de braço e antebraço e força de preensão palmar. Principais resultados: notou-se maior número de indivíduos sinistros e com indefinição na lateralidade no grupo com síndrome de Down do que nas pessoas com desenvolvimento típico. Os valores da percentagem de gordura, das medidas de dobra cutânea, da circunferência muscular do braço e da circunferência de antebraço foram maiores entre os participantes com síndrome de Down do que entre os do grupo controle. A força de preensão palmar foi maior nos indivíduos típicos. Não houve diferença na composição corporal bilateral dos indivíduos com síndrome de Down. Conclusão: os resultados encontrados demonstraram a existência de uma simetria bilateral nos indivíduos com e sem síndrome de Down.

Objective: this study sought to investigate the possible discrepancy in the bilateral anthropometric indicators of people with and without Down syndrome (DS). Material and Method: 60 individuals with and without Down syndrome, aged between 11 and 14 years, who were evaluated for lateral dominance, skinfolds, fat percentage, arm and forearm muscle circumference, and hand grip strength. Main results: there were a greater number of sinister individuals with a vagueness in laterality in the group with Down syndrome than in people with typical development. The percentage of fat, skinfold measurements, arm muscle circumference and forearm circumference were higher among participants with Down syndrome than those in the control group. Hand grip strength was greater in typical individuals. There was no difference in the bilateral body composition of individuals with Down syndrome. Conclusion: the results found demonstrated the existence of a bilateral symmetry in individuals with and without Down syndrome.

Story reading with incidental comprehension and memory: left hemisphere dominance / Lectura de una historia con comprensión y memoria incidentales: dominancia del hemisferio izquierdo

ABSTRACT Background: There are no studies on adults with unilateral brain lesions regarding story reading with incidental/implicit comprehension and memory, in which memory is only assessed through delayed recall. There is a need for validation of cerebral laterality in this type of verbal recall, which includes spontaneous performance (free or uncued condition (UC)), and induced-through-question performance regarding the forgotten units (cued condition (CC)). Objectives: To explore the effects of unilateral brain lesions, of oral reading with expression (RE) and comprehension (RC) on delayed recall of a story, as either UC or CC; and to validate the ability of UC and CC to discriminate the side of brain injury. Methods: Data were obtained from 200 right-handed volunteers, among whom 42 had left-hemisphere injury (LHI), 49 had right-hemisphere injury (RHI) and 109 were demographically-matched healthy participants (HP). Patients who were unable to read, understand or speak were excluded. Results: LHI individuals presented impairment of both UC and CC, in relation to the other two groups (non-LHI) with sensitivity and specificity above 70%. LHI and RHI individuals were not significantly different in RE and RC, but they were both different from HP in all the assessments except CC, in which RHI individuals resembled HP. Despite this lack of abnormality in RHI individuals during CC, about half of this group showed impairment in UC. Additionally, whereas RE had a significant effect on UC, the moral of the story (RC) had a significant effect on both UC and CC. Conclusions: The left hemisphere was dominant for this memory task involving implicit processing.

RESUMEN Antecedentes: No existen estudios en adultos con lesiones cerebrales unilaterales sobre la lectura de una historia, con comprensión y memoria incidental/implícita, midiendo sólo el recuerdo diferido. Se necesita validar la lateralidad cerebral en este tipo de recuerdo verbal que incluye: desempeño espontáneo (condición sin claves (CS) o libre) y desempeño inducido con preguntas sobre las unidades olvidadas (condición con claves (CC)). Objetivos: Explorar el efecto de las lesiones cerebrales unilaterales, la lectura expresiva (LE) y la comprensiva (LC), sobre el recuerdo diferido de una historia, sea CS o CC. Validar CS y CC en su capacidad para discriminar el lado de la lesión cerebral. Métodos: Los datos se obtuvieron de 200 voluntarios diestros, 42 con lesiones del hemisferio izquierdo (LHI), 49 con lesiones del hemisferio derecho (LHD), y 109 participantes sanos (PS), equiparados demográficamente. Se excluyeron los pacientes que no pudieron leer, entender o hablar. Resultados: LHI resultó perjudicado respecto de los otros dos grupos (no-LHI) en CS y CC, con una sensibilidad y especificidad superior al 70%. LHI y LHD no se diferenciaron significativamente en LE ni LC, pero ambos fueron diferentes de los PS en todas las evaluaciones excepto CC, en donde LHD se asemejó a los PS. A pesar de esta ausencia de anomalía en LHD durante CC, aproximadamente la mitad de LHD mostró deterioro en CS. Además, mientras que LE tuvo un efecto significativo en CS, la moraleja de la historia (LC) tuvo un efecto significativo tanto en CS como en CC. Conclusiones: El hemisferio izquierdo fue dominante para esta tarea de memoria que involucró procesamiento implícito.

Acromial type in Brazilian young adults: a radiological study / Tipo acromial em adultos jovens brasileiros: um estudo radiológico

Introduction: curved and hooked acromia play a key role in shoulder impingement syndrome. Little is known about acromial type in the Brazilian population. Aim: To describe the acromial profile of Brazilian young adults; to evaluate its correlation with gender and handedness and the occurrence of symmetry between the genders. Methodology: forty acromia in 20 Brazilian adults of both genders, aged 21-25 years, were studied. The acromial type was classified through the Bigliani/Epstein method using radiographs in supraspinatus outlet view. Results: as there was no gender difference in occurrences of acromial type, we considered the male and female groups together. Thus, among the 20 right acromia, we found 5 type I (25%), 8 type II (40%) and 7 type III (35%). Among the 20 left acromia, we found 4 type I (20%), 11 type II (55%) and 5 type III (25%). The only left-handed volunteer (100%) presented acromial type III in both the right and the left shoulder. Among the 19 right-handed volunteers, 5 (26.3%) presented right acromion type I, 8 (42.1%) had type II and 6 (31.6%) had type III; for the left acromion, 4 (21.1%) presented type I, 11 (57.9%) had type II and 4 (21.1%) had type III. Acromial symmetry occurred in 60% of females and 70% of males. Conclusion: type II acromion was predominant, in both the right and the left shoulder in Brazilian young adults. There was no correlation between acromial type and gender. It was not possible to analyze the correlation between acromial type and handedness. Acromial type tended to be symmetrical in our sample.

Introdução: o acrômio curvo e gancho desempenham um papel fundamental na Síndrome do impacto do ombro. Pouco se sabe sobre o tipo acromial na população brasileira. Objetivo: descrever o perfil do tipo acromial em adultos jovens brasileiros e avaliar sua correlação com o gênero e a lateralidade e a ocorrência de simetria entre os sexos. Metodologia: foram estudados 40 acrômios de 20 adultos brasileiros, de ambos os sexos, com idade entre 21 e 25 anos. O tipo acromial foi classificado pelo método de Bigliani/ Epstein nas radiografias de perfil de escápula. Resultados: como não houve diferença na ocorrência do tipo acromial quanto ao gênero, consideramos os grupos masculino e feminino juntos. Assim, dos 20 acrômios direitos, foram encontrados 5 (25%) do tipo I, 8 (40%) do tipo II e 7 (35%) do tipo III, enquanto que dos 20 acrômios esquerdos, foram encontrados 4 (20%) tipo I, 11 (55%) tipo II e 5 (25%) tipo III. O único voluntário canhoto (100%) apresentou para o ombro direito e esquerdo o tipo acromial III. Dos 19 voluntários destros, 5 (26,3%) apresentavam acrômio direito tipo I, 8 (42,1%) tipo II e 6 (31,6%) tipo III; para o acrômio esquerdo, 4 (21,1%) apresentavam tipo I, 11 (57,9%) tipo II e 4 (21,1%) tipo III. A simetria acromial ocorreu nos grupos feminino (60%) e masculino (70%). Conclusão: o acrômio tipo II foi o mais predominante para os ombros direito e esquerdo em adultos jovens brasileiros. Não houve correlação entre o tipo de acromial e o gênero. Não foi possível analisar a correlação entre o tipo acromial e a lateralidade. O tipo acromial tende a ser simétrico em na amostra estudada.

Dichotic sentence identification test in Portuguese: a study in young adults / Teste de reconhecimento de sentenças dicóticas em português: estudo em adultos jovens

Abstract Introduction Among the currently-applied auditory processing tests, dichotic listening tests have been widely used, since they allow investigating the hemispheric and inter-hemispheric function and their respective skills to process the received auditory information. Objective To obtain normality reference measures with the new dichotic sentence identification test in right-handed adults with normal hearing. Methods Quantitative, observational, cross-sectional study. 72 subjects were assessed, aged 19-44 years, right-handed, with normal hearing, without hearing complaints. The dichotic sentence identification test consists of different lists of sentences, which were combined two by two and presented at the same time, using earphones in both ears, at 50 dB Sensation Level. The test was applied in four stages: training of the 3 stages, free attention, right and left directed attention, thus evaluating different auditory skills. Results In the free attention task, the average percentage of correct answers in the right ear was 93.59% and in the left ear 86.06%, with a statistically significant difference between the ears, with an advantage for the right ear. In the directed attention task, the average percentage of correct answers was 99.37% in the right ear and 98.8% in the left ear, with no statistical difference between the ears. Conclusion It is suggested, as a normality reference for the stage of free attention, 90%-100% for correct answers for the right ear and for the left ear, from 80% to 100%. When there is asymmetry between the ears, differences of up to 20% are expected, with an advantage for the right ear For the directed attention stage, the expected normality reference values ​​are 100% for the right ear and for the left ear, with no asymmetry between the ears; however, if it occurs, a difference of 10% is expected between the ears, with an advantage for the right ear.

Resumo Introdução Entre os testes de processamento auditivo aplicados atualmente, os testes de escuta dicótica têm sido amplamente usados, uma vez que permitem investigar a função hemisférica e inter-hemisférica e suas respectivas habilidades, para processar a informação auditiva recebida. Objetivo Obter medidas de referência de normalidade com o novo teste dicótico de reconhecimento de sentenças em indivíduos adultos, destros, com audição normal. Método Estudo quantitativo, observacional, de corte transversal. Foram avaliados 72 indivíduos, entre 19 e 44 anos, destros, com audição normal, sem queixa auditiva. O teste dicótico de reconhecimento de sentenças é constituído por diferentes listas de sentenças, que foram combinadas duas a duas e apresentadas ao mesmo tempo, por meio de fones auriculares em ambas as orelhas, a 50 dB nível de sensação. O teste foi aplicado em quatro etapas: treino das 3 etapas, atenção livre, atenção direcionada direita e esquerda, avaliou assim diferentes habilidades auditivas. Resultados Na tarefa de atenção livre, as porcentagens médias de acertos na orelha direita foram de 93,59% e na orelha esquerda de 86,06%, com diferença estatisticamente significante entre as orelhas, com vantagem para a orelha direita. Na tarefa de atenção direcionada, as porcentagens médias de acertos foram de 99,37% na orelha direita e de 98,8% na orelha esquerda, sem diferença estatística entre as orelhas. Conclusão Sugere-se como referência de normalidade na etapa de atenção livre, para a orelha direita, 90% e 100% de acertos e para a orelha esquerda, de 80% a 100%. Quando houver assimetria entre as orelhas, são esperadas diferenças de até 20%, com vantagem para a orelha direita. Para a etapa de atenção direcionada os valores de referência de normalidade esperados são de 100% para a orelha direita e para a orelha esquerda, sem assimetria entre as orelhas, mas se ocorrer é esperada diferença entre as orelhas de 10%, com vantagem para a orelha direita.

Evaluación de la actividad cerebro-cerebelar cruzada para determinar la lateralidad del lenguaje en pacientes con tumores cerebrales / Evaluation of the crossed cerebro-cerebellar activation to determine language lateralization in patients with brain tumors

Background: The crossed cerebro-cerebellar (CCC) activation facilitates the diagnosis of cortical language lateralization, but needs to be explored with language tasks suitable for patients with different age ranges, educational attainment and eventual presence of language deficits. Aim: To determine the effect of demographic variables in the performance of three language tasks in healthy volunteers and to determine the CCC activation of these tasks as a functional magnetic resonance imaging (fMRI) paradigm in brain tumor patients. Material and Methods: The behavioral performance (correct responses and reaction time) of three language tasks (verbal fluency, semantic and phonological decision tasks) was first examined in 76 healthy volunteers balanced by age and educational level. Later, these tasks were implemented as fMRI paradigms to explore CCC language activation of 20 patients with potential diagnosis of brain tumors. Results: The performance of the verbal fluency task was affected by age. The CCC language activation was reproducible with the semantic and phonological tasks. The combination of the tasks determined typical and atypical language lateralization in 60% and 40% of our patients, respectively. Conclusions: The verbal fluency task must be implemented with care as a clinical fMRI paradigm. Our results suggest that semantic and phonological tasks can be a good alternative for brain tumor patients with language deficits.

Relação entre função motora e cognitiva na paralisia cerebral hemiplégica / Relationship between motor and cognitive function in hemiplegic cerebral palsy

Introdução: Crianças com paralisia cerebral hemiplégica (PCH) exibem dificuldades funcionais na utilização do membro superior hemiparético, repercutindo negativamente no desempenho em realizar atividades de vida diária. Atualmente, os déficits motores nessa população são acompanhados por distúrbios sensoriais, dificuldades na aprendizagem, alterações de comportamento e comunicação e défices cognitivos gerais. Objetivo: Investigar a possível associação entre os déficits motores e cognitivos de crianças com PCH, verificando ainda a influência da lateralidade da hemiplegia. Métodos: Participaram do estudo 30 crianças com PCH (idade média = 10,48 ± 2,46 anos). Os participantes foram submetidos aos seguintes testes: Assisting Hand Assessment (AHA), Matrizes Progressivas Coloridas de Raven, o Subteste cubos do Wechsler Intelligence Scale for Children fourth Edition - WISC IV e a fluência verbal semântica de animais. Resultados: Os grupos foram homogêneos em relação ao sexo e idade (p > 0.05). Os grupos não diferiram em relação ao nível de desempenho motor, memória de trabalho, inteligência e fluência verbal (p > 0,05). O desempenho motor correlacionou com todas as variáveis cognitivas. Conclusão: Em crianças com PCH o desempenho motor correlacionou fortemente com funções cognitivas. Além disso, a lateralidade da lesão cerebral não influenciou o desempenho em tarefas motoras e cognitivas. (AU)

Introduction: Children with hemiplegic cerebral palsy (HCP) exhibit functional difficulties in using the hemiparetic upper limb, negatively impacting their performance in carrying out activities of daily living. Currently, motor deficits in this population are accompanied by sensory disorders, learning difficulties, changes in behavior and communication and general cognitive deficits. Objective: To investigate the possible association between motor and cognitive deficits in children with PCH, also verifying the influence of laterality in hemiplegia. Methods: Thirty children with PCH participated in the study (mean age = 10.48 ± 2.46 years). Participants were subjected to the following tests: Assisting Hand Assessment (AHA), Raven's Colorful Progressive Matrices, the Wechsler Intelligence Scale for Children fourth Edition - WISC IV Subtest and the semantic verbal fluency of animals. Results: The groups were homogeneous in relation to sex and age (p > 0.05). The groups did not differ in relation to the level of motor performance, working memory, intelligence and verbal fluency (p> 0.05). Motor performance correlated with all cognitive variables. Conclusion: In children with PCH, motor performance correlated strongly with cognitive functions. In addition, the laterality of the brain injury did not influence performance in motor and cognitive tasks. (AU)

Coordenação motora de crianças com transtorno do espectro autista: efeitos de um programa de jiu-jitsu / Motor coordenation of children with autism spectrum disorder: effects of a jiu-jitsu program

Crianças autistas apresentam não somente limitações sociais e na forma de comunicação/ linguagem, mas também comprometimentos na coordenação motora. O objetivo deste estudo foi verificar os efeitos de um programa de jiu-jitsu na coordenação motora de crianças com Transtorno do Espectro Autismo Participaram seis crianças, na faixa etária de 7-12 anos (8,6 ± 3,07), sendo três praticantes de jiu-jitsu e outras três sem qualquer experiência em atividades relacionadas a lutas. O instrumento utilizado para a coleta de dados foi o teste de coordenação motora Korperkoordination test fur Kinder (KTK). O teste envolve componentes da coordenação corporal como: o equilíbrio, o ritmo, a força, a lateralidade, a velocidade e a agilidade. Os resultados apontaram que a prática de jiu-jitsu influenciou positivamente a coordenação motora das crianças. Apesar disso, a coordenação motora de ambos os grupos foi classificada como insuficiente.(AU)

Autistic children not only present social issues and form of communication and language, but also commitments in motor coordination. The aim of this study was to verify the effects of a jiu-jitsu program to coordinate children with Autism Spectrum Disorder. He participated in six children, aged 7 to 12 years (8.6 ± 3.07), three of whom were practicing jiu-jitsu and three others with no experience in activities related to fights. The instrument used for data collection was the motor coordination test Korperkoordination Kinder Test (KTK). The test involves components of body coordination such as: balance, rhythm, strength, laterality, speed and agility. The results showed that the practice of jiu-jitsu positively influenced children's motor coordination. Despite this, motor coordination in both groups was used as insufficient.(AU)

Isokinetic strength, bilateral and unilateral strength differences: variation by age and laterality in elite youth football players / Fuerza isocinética, diferencias de fuerza bilaterales y unilaterales: variación por edad y lateralidad en futbolistas juveniles de élite

SUMMARY: The purpose of this study was to investigate the effect of age on peak torque (PT) relative strength measures of knee extensors (KE) and knee flexors (KF), bilateral strength ratio (Q:Q, H:H), and ipsilateral strength ratio (H:Q) in youth elite male football players.Elite male players (n = 70) from four age categories (U16: n = 20, U17: n = 20, U19: n = 15, U21: n = 15) performed isokinetic strength tests using a Cybex dynamometer. Results show a significant effect of age on PTKE (F3,142 = 4.54, p = 0.005, = 0.09) and PTKF (age: F3,142 = 3.07, p = 0.030, = 0.06). No significant effect of age on unilateral (F3,142 = 1.05, p = 0.375, = 0.02) or ipsilateral strength ratio (F3,142 = 2.63, p = 0.053, = 0.06) was found. Results revealed significant differences in PTKE for nondominant limbs between U16 and U21. Higher bilateral differences were detected for flexors (H:H = 7.94-11.47 %, Q:Q = 7.97-9.29 %) compared to extensors. Our study showed that 17-year-old players have levels of strength similar to U19 players. A higher bilateral difference of knee flexors than extensors was found, suggesting that more attention should be paid to knee flexors. No effect of laterality was found for strength and strength asymmetries. Future research should also focus on ipsilateral strength ratio in late stage of maturation.

RESUMEN: El objetivo de este estudio fue investigar el efecto de la edad en las medidas de fuerza relativa de torque máximo (TM) de los extensores de rodilla (ER) y flexores de rodilla (FR), la relación de fuerza bilateral (Q: Q, H: H) y la relación de fuerza ipsilateral (H: Q) en jugadores de fútbol masculino de élite en 70 sujetos de cuatro categorías de edad (U16: n = 20, U17: n = 20, U19: n = 15, U21: n = 15). Se realizaron pruebas de fuerza isocinética utilizando un dinamómetro Cybex. Los resultados mos- traron un efecto significativo de la edad en TMER (F3,142 = 4,54, p = 0,005, = 0,09) y TMFR (edad: age: F3,142 = 3,07, p = 0,030, = 0,06). No se observó efecto significativo alguno de la edad sobre la fuerza unilateral (F3,142 = 1,05, p = 0,375, = 0,02) o relación de fuerza ipsilateral (F3,142 = 2,63, p = 0,053, = 0,06). Los resultados indicaron diferencias significativas en TMER para miembros no dominantes entre U16 y U21. Se detectaron mayo- res diferencias bilaterales para los flexores (H:H = 7,94-11,47%, Q:Q = 7,97-9,29 %) en comparación con los extensores. Nues- tro estudio mostró que los jugadores de 17 años tienen niveles de fuerza similares a la de los jugadores sub-19. Se observó una mayor diferencia bilateral de flexores de rodilla que de extensores, lo que sugiere que se debe prestar más atención a los flexores de rodilla. No se encontró un efecto de lateralidad para fuerza y asimetrías de fuerza. Los estudios futuros también deben centrarse en la relación de fuerza ipsilateral en la etapa tardía de maduración.

Dança educativa para crianças com deficiência física: repercussões de um programa de ensino / Educational dance for children with physical disabilities: repercussions of a teaching program / Danza educativa para niños con discapacidad física: repercusiones de un programa didáctico

Resumo Este estudo teve como objetivos: analisar o envolvimento dos participantes com deficiência física em determinados elementos (rolamentos e deslocamentos pelo espaço envolvendo os níveis, as direções e os fatores de movimento) de um programa de dança educativa; e verificar em quais aspectos analisados pela escala de avaliação em dança educativa a intervenção promoveu maior ou menor influência. Trata-se de uma pesquisa de campo do tipo estudo de avaliação de programa. Participaram quatro crianças com deficiência física. Os instrumentos de coleta de dados foram: diário de campo e Instrumento de Acompanhamento da Aprendizagem em Dança Educativa. A análise dos dados foi realizada de forma quali-quantitativa (estatística descritiva). Observou-se que as habilidades e os elementos que indicaram ganhos expressivos foram: lateralidade, ritmo de movimentos, exploração de direções (frente, lado e trás) e dos níveis de espaço (baixo, médio e alto), compreensão e realização dos fatores de movimento "fluência", "peso", "tempo" e "espaço".

Abstract This study aimed to analyze the involvement of participants with physical disabilities in certain elements of an educational dance program and to verify which aspects of the intervention had greater or lesser influence. This is a field research study characterized as a program evaluation study, based on intervention in educational dance in 24 sessions. Four children with physical disabilities participated in this research. The data collection instruments were a field diary and the Follow-up Instrument of Learning in Educational Dance (FILED). Data analysis was performed qualitatively and quantitatively, based on descriptive statistics. The dance skills and elements that indicated expressive results were laterality, movement rhythm, exploring directions (front, side and back) and space levels (low, medium and high), understanding and performance of movement factors "fluency," "weight," "time" and "space."

Resumen Este estudio tuvo como objetivos analizar la participación de niños con discapacidad física en determinados elementos (rodar y moverse por el espacio, incluyendo los niveles, las direcciones y los factores de movimiento) de un programa de danza educativa y verificar en cuáles aspectos analizados por la escala de evaluación en danza educativa la intervención promovió mayor o menor influencia. Se trata de una investigación de campo del tipo estudio de evaluación de programa. Participaron cuatro niños con discapacidad física. Los instrumentos para la recolección de datos fueron: diario de campo e Instrumento de Acompañamiento del Aprendizaje en Danza Educativa (IAADE). El análisis de los datos se realizó de forma cualitativa y cuantitativa (estadística descriptiva). Se observó que las habilidades y los elementos que indicaban mejoras expresivas fueron: lateralidad, ritmo de movimientos, exploración de direcciones (frontal, lateral y posterior) y niveles de espacio (bajo, medio y alto), comprensión y realización de los factores de movimiento "fluidez", "peso", "tiempo" y "espacio".

Does the Presence of Clubfoot delay the Onset of Walking? / A presença do pé torto congênito atrasa o início da marcha?

Abstract Objective Congenital clubfoot (PTC) is a congenital orthopedic condition often requiring intensive treatment; little is known about the impact of such treatment on motor development. The present study assessed whether gait development is later in patients with PTC treated with the Ponseti method in comparison to a control group and analyzed possible related factors. Methods Patients born at term, < 6 months old, not submitted to previous treatment and with a minimum follow-up period of 24 months were included. The control group consisted of patients with no musculoskeletal disorders seen during the present study. Results The study group consisted of 97 patients, whereas the control group had 100 subjects. The mean age at gait start was 14.7 ± 3.2 months in the study group and 12.6 ± 1.5 months in the control group (p< 0.05). Factors related to late gait included age at beginning of treatment > 3 weeks, number of plaster cast changes > 7, recurrence and nonperformance of Achilles tenotomy. Age at beginning of treatment > 3 weeks was related to a greater number of plaster cast changes. Gender and laterality were not related to late gait development. Conclusion Congenital clubfoot patients treated with the Ponseti method show independent walking approximately 2 months later than the control group. Delayed treatment, higher number of plaster cast changes, recurrence and nonperformance of Achilles tenotomy were related to late gait.

Resumo Objetivo O pé torto congênito (PTC) é uma das alterações ortopédicas congênitas que mais frequentemente necessita tratamento intensivo, e pouco se sabe o impacto desse tratamento no desenvolvimento motor. O presente estudo buscou avaliar se pacientes portadores de PTC tratados pelo método de Ponseti desenvolvem a marcha mais tardiamente comparado a um grupo controle e analisar possíveis fatores relacionados. Métodos Incluídos pacientes nascidos a termo, com < 6 meses de idade, sem tratamento prévio e com seguimento mínimo de 24 meses. O grupo controle foi de pacientes sem alterações musculoesqueléticas, atendidos no mesmo período da realização do presente estudo. Resultados Um total de 97 pacientes formaram o grupo de estudo e 100 o grupo controle. A média de idade no início da marcha no grupo de estudo foi de 14,7 ± 3,2 meses, e 12,6 ± 1,5 meses (p< 0,05) no grupo controle. Fatores relacionados à marcha tardia foram: idade de início do tratamento > 3 semanas, número de trocas gessadas > 7, recidiva e não realização da tenotomia de Aquiles. Idade de início do tratamento > 3 semanas esteve relacionada a maior número de trocas de gessos. Gênero e lateralidade não tiveram relação com a marcha tardia. Conclusão Pacientes com PTC tratados com o método de Ponseti apresentam marcha independente aproximadamente 2 meses mais tarde do que o grupo controle. Início mais tardio do tratamento, maior número de trocas de gessos, recidiva e não realização da tenotomia de Aquiles foram relacionados com atraso da marcha.

The relationship of surgeon handedness and experience on operative duration and hearing improvement in ipsilateral and contralateral otologic surgeries

@#Objective: To determine the relationship of the surgeon handedness and operative site laterality on operative duration and hearing improvement in otologic surgery, and to further explore whether this relationship may be related to surgeon experience. Methods: Design: Retrospective Cohort Setting: Tertiary Private Teaching Hospital Participants: Seventy-three (73) patients aged 18 to 65 years old who underwent primary ear surgery under general anesthesia between January 2016 and December 2019 were retrospectively divided into two groups: 39 contralateral and 34 ipsilateral. The operative durations and hearing improvements were compared using independent t-tests, with consideration of surgeon experience in years further stratifying patients. Results: There was no significant difference in operative duration, t(71) = 1.14, p = .26, between the contralateral (M = 281.95 minutes, SD = 71.82) and ipsilateral (M = 261.15, SD = 79.26) groups. This same pattern was more pronounced among surgeons with 10+ years of experience although there was also no significant difference in operative time, t(33) = 1.31, p = .19 for both ipsilateral and contralateral surgeries There was no statistically significant difference, t(36) = -0.72, p = .47, in overall mean hearing gain among patients in the contralateral (M = +2.22 dB, SD = 10.54) and ipsilateral (M = +5.12 dB, SD = 14.26) groups. Although the difference was also not statistically significant, t(16) = -1.94, p = .07 for contralateral (M = 0.00, SD = 5.43) and ipsilateral (M = +7.95 dB, SD = 11.52) procedures performed by surgeons with experience of 10 years or more, a mean hearing gain of +7 dB in the ipsilateral group compared to 0 dB in the contralateral group was notable. Conclusion: This study did not prove that regardless of surgeon experience, right-handed surgeons operating on the right ear and left-handed surgeons operating on the left ear have better ear surgery outcomes of operative duration and hearing improvement compared to right- handed surgeons operating on the left ear and left-handed surgeons operating on the right ear. Future studies on larger samples with more complete data may yet demonstrate this effect.

SHELL Part of Nucleus Accumbens and Its Laterality Has Important Role in Response to Chronic Stress in Female Rats

Abstract The nucleus accumbens shell (NAcSh) plays a role in appetitive and negative motivation with sex differences in responses. NAcSh and its laterality in metabolic and hormonal responses to chronic stress in female rats is evaluated via transient inactivation of this nucleus during stress induction. Animals in the stress groups received consecutive stress for four days and transient inactivation of NAcSh was performed by administrating lidocaine (0.2%) unilaterally or bilaterally in the nucleus for five minutes before electric foot shock induction. After stress termination, food and water intake, latency to eat, plasma glucose, corticosterone, estradiol and progesterone were measured in all groups. Results showed that stress increased food intake and blood glucose level, but there were no change in the latency to eat and the amount of water intake. The right side, the left side, and both sides of NAcSh may be dominant in latency to eat, food intake, and both water intake and plasma glucose level, respectively. Although chronic stress included no changes for corticosterone and progesterone, it increased estradiol level in plasma. Also, bilateral and right sides of NAcSh may have modulatory effects on stress in corticosterone and progesterone, respectively, without affecting estradiol. It can be concluded that the NAc shell plays a pivotal role in metabolic and hormonal responses to chronic stress in a laterality manner in female rats.

Norm scores of cancelation and bisection tests for unilateral spatial neglect: data from a Brazilian population

OBJECTIVE: Unilateral spatial neglect (USN) results in a consistent and exaggerated spatial asymmetry in the processing of information about the body or space due to an acquired brain injury. There are several USN tests for clinical diagnosis, but none of them are validated in Brazil. The aim was to obtain normative values from a healthy sample in Brazil and to evaluate the effects of demographic variables on USN tests. METHODS: This was a cross-sectional study performed with 150 neurologically healthy individuals. USN was evaluated using the line cancelation (LC), star cancelation (SC), and line bisection (LB) tests in the A3 (29.7 x 42.0 cm) sheet format. RESULTS: In LC, 143 participants had 0 omissions, and the occurrence of failure was significantly associated with aging (OR=1.1[1.02-1.2]; p=0.012). In SC, 145 participants had fewer than 1 omission, and the occurrence of failure was significantly associated with aging (OR=1.07[1.03-1.11]; p<0.001). In LB, deviations were the lowest for those with the highest level of education (r=0.20; p=0.015), and the deviation was 9.5 mm. CONCLUSION: The cutoff points presented in this study may be indicative of USN, but due to performance differences based on age, we suggest using different norm scores for different age groups. These norm scores can be used in the clinic immediately for USN diagnosis.

Variabilidade do teste dicótico de sentenças no teste e reteste de adultos normo-ouvintes / Variability of the dichotic sentence test in the test and retest of normal hearing adults

RESUMO Objetivo: investigar a variabilidade do Teste Dicótico de Sentenças por meio do teste e reteste em indivíduos normo-ouvintes. Método: foram avaliados 36 indivíduos na faixa etária de 19 a 44 anos, destros e com limiares auditivos dentro da normalidade. Realizou-se a avaliação audiológica básica e aplicação dos Testes Dicótico de Dígitos e Dicótico de Sentenças. Teste e reteste foram realizados em duas sessões, com intervalo de 30 a 40 dias, no mesmo turno. Resultados: na tarefa de integração: houve vantagem da orelha direita em ambas as sessões de avaliação; não houve diferença significante entre as medidas obtidas na orelha direita, nas duas sessões de avaliação, enquanto na orelha esquerda foi constatada diferença significante. Na análise das diferenças por orelhas entre teste e reteste, verificou-se que 64% dos indivíduos mantiveram o mesmo resultado na orelha direita; já na esquerda, apenas 36% dos indivíduos mantiveram o mesmo resultado em ambas as etapas e 44% apresentaram diferença de 10% entre as duas avaliações. Observou-se correlação positiva moderada tanto para a orelha direita (r = 0,420) quanto para a esquerda (r = 0,550) com tendência de melhora dos escores no reteste. Na tarefa de separação, houve pequena variabilidade apenas na orelha esquerda, também com melhora dos escores no reteste. Conclusão: foi verificada diferença significante entre as medidas obtidas no teste e reteste apenas na tarefa de integração na orelha esquerda, porém houve correlação positiva moderada entre as medidas obtidas nas duas sessões de avaliação, mostrando tendência de melhora dos escores na segunda sessão de avaliação.

ABSTRACT Purpose: to investigate the variability of the Dichotic Sentence Test through the test and retest in normal-hearing adults. Method: We evaluated thirty-six individuals aged 19 to 44 years old, right-handed and with normal hearing thresholds. We performed the basic audiological evaluation and then we applied the Dichotic Digit Test and Dichotic Sentence Test. The test and retest had two sessions, with an interval from 30 to 40 days, in the same shift. Results: In the integration task, there was an advantage of the right ear in both evaluation sessions. There was no significant difference between the measures obtained in the right ear in the two evaluation sessions, while in the left ear, we found a significant difference. In the analysis of the differences in ears between the test and the retest, we found that 64% of the individuals kept the same result in the right ear, while in the left one, only 36% of the individuals kept the same result in both stages and 44% showed a 10% difference between the two evaluations. We observed moderate positive correlation for both the right ear (r=0.420) and the left ear (r=0.550), with a tendency to improve retest scores. In the separation task, there was a small variability only in the left ear, also with improved retest scores. Conclusion: There was a significant difference between the measures obtained in the test and retest only in the integration task in the left ear, but there was a moderate positive correlation between the measures obtained in the two evaluation sessions, showing a tendency to improve scores in the second evaluation session.