Comparison of Heart Autonomic Control between Hemodynamically Stable and Unstable Patients during Hemodialysis Sessions: A Bayesian Approach.

Intradialytic hypotension is a common complication during hemodialysis sessions. The analysis of successive RR interval variability using nonlinear methods represents a promising tool for evaluating the cardiovascular response to acute volemic changes. Thus, the present study aims to compare the variability of successive RR intervals between hemodynamically stable (HS) and unstable (HU) patients during a hemodialysis session, through linear and nonlinear methods. Forty-six chronic kidney disease patients volunteered in this study. Successive RR intervals and blood pressures were recorded throughout the hemodialysis session. Hemodynamic stability was defined based on the delta of systolic blood pressure (higher SBP-lower SBP). The cutoff for hemodynamic stability was defined as 30 mm Hg, and patients were stratified as: HS ([n = 21]: ≤29.9 mm Hg) or HU ([n = 25]: ≥30 mm Hg). Linear methods (low-frequency [LFnu] and high-frequency [HFnu] spectra) and nonlinear methods (multiscale entropy [MSE] for Scales 1-20, and fuzzy entropy) were applied. The area under the MSE curve at Scales 1-5 (MSE1-5), 6-20 (MSE6-20), and 1-20 (MSE1-20) were also used as nonlinear parameters. Frequentist and Bayesian inferences were applied to compare HS and HU patients. The HS patients exhibited a significantly higher LFnu and lower HFnu. For MSE parameters, Scales 3-20 were significantly higher, as well as MSE1-5, MSE6-20, and MSE1-20 in HS, when compared to HU patients (p < 0.05). Regarding Bayesian inference, the spectral parameters demonstrated an anecdotal (65.9%) posterior probability favoring the alternative hypothesis, while MSE exhibited moderate to very strong probability (79.4 to 96.3%) at Scales 3-20, and MSE1-5, MSE6-20, and MSE1-20. HS patients exhibited a higher heart-rate complexity than HU patients. In addition, the MSE demonstrated a greater potential than spectral methods to differentiate variability patterns in successive RR intervals.

Sexuality and its effects on older adults' depressive symptoms and quality of life.

OBJECTIVES: to analyze the effects of sexuality on depressive symptoms and quality of life in older adults. METHODS: a cross-sectional and analytical study, developed with 596 older adults, who completed four instruments for data collection. Data were analyzed using the Kruskal-Wallis test and Structural Equation Modeling, with a 95% Confidence Interval. RESULTS: among the sexuality dimensions, only physical and social adversities exerted statistically significant effects on depressive symptoms (SC=-0.095; p=0.003), but with low magnitude. Moreover, all sexuality dimensions had statistically significant effects on quality of life, being of low magnitude for sexual act (SC=0.171; p=0.010) and for physical and social adversities (SC=0.228; p<0.001), and moderate magnitude for affective relationships (SC=0.474; p<0.001). CONCLUSIONS: effects of different magnitudes were observed between sexuality dimensions on participants' depressive symptoms and quality of life.

Sexuality and its effects on older adults' depressive symptoms and quality of life / La sexualidad y sus efectos sobre los síntomas depresivos y la calidad de vida de los ancianos / Sexualidade e seus efeitos na sintomatologia depressiva e qualidade de vida de pessoas idosas

ABSTRACT Objectives: to analyze the effects of sexuality on depressive symptoms and quality of life in older adults. Methods: a cross-sectional and analytical study, developed with 596 older adults, who completed four instruments for data collection. Data were analyzed using the Kruskal-Wallis test and Structural Equation Modeling, with a 95% Confidence Interval. Results: among the sexuality dimensions, only physical and social adversities exerted statistically significant effects on depressive symptoms (SC=-0.095; p=0.003), but with low magnitude. Moreover, all sexuality dimensions had statistically significant effects on quality of life, being of low magnitude for sexual act (SC=0.171; p=0.010) and for physical and social adversities (SC=0.228; p<0.001), and moderate magnitude for affective relationships (SC=0.474; p<0.001). Conclusions: effects of different magnitudes were observed between sexuality dimensions on participants' depressive symptoms and quality of life.

RESUMEN Objetivos: analizar los efectos de la sexualidad sobre los síntomas depresivos y la calidad de vida en ancianos. Métodos: estudio transversal y analítico, desarrollado con 596 ancianos, que cumplimentaron cuatro instrumentos para la recolección de datos. Los datos se analizaron mediante la prueba de Kruskal-Wallis y el modelado de ecuaciones estructurales, con un Intervalo de Confianza del 95%. Resultados: entre las dimensiones de la sexualidad, solo las adversidades físicas y sociales ejercieron efectos estadísticamente significativos sobre los síntomas depresivos (CE=-0,095; p=0,003), pero de baja magnitud. Además, todas las dimensiones de la sexualidad tuvieron efectos estadísticamente significativos sobre la calidad de vida, siendo de baja magnitud para el acto sexual (CE=0,171; p=0,010) y para las adversidades físicas y sociales (CE=0,228; p<0,001), y magnitud moderada para las relaciones afectivas (CE=0,474; p<0,001). Conclusiones: se observaron efectos de diferente magnitud entre las dimensiones de la sexualidad sobre los síntomas depresivos y la calidad de vida de los participantes.

RESUMO Objetivos: analisar os efeitos da sexualidade na sintomatologia depressiva e qualidade de vida de pessoas idosas. Métodos: estudo transversal e analítico, desenvolvido com 596 pessoas idosas, que preencheram quatro instrumentos para a coleta dos dados. Os dados foram analisados com o Teste de Kruskal-Wallis e a Modelagem de Equações Estruturais, com Intervalo de Confiança de 95%. Resultados: dentre as dimensões da sexualidade, somente as adversidades física e social exerceram efeitos estatisticamente significantes na sintomatologia depressiva (CP=-0.095; p=0,003), porém com fraca magnitude. Além disso, todas as dimensões da sexualidade exerceram efeitos estatisticamente significantes na qualidade de vida, sendo de fraca magnitude para o ato sexual (CP=0.171; p=0,010) e para as adversidades física e social (CP=0.228; p<0,001), e moderada magnitude para as relações afetivas (CP=0.474; p<0,001). Conclusões: observaram-se efeitos de diferentes magnitudes entre as dimensões da sexualidade sob a sintomatologia depressiva e qualidade de vida dos participantes.

Effects of sexuality on frailty and quality of life in the elderly: a cross-sectional study / Efectos de la sexualidad en la fragilidad y calidad de vida de la persona anciana: estudio seccional / Efeitos da sexualidade na fragilidade e qualidade de vida da pessoa idosa: estudo seccional

ABSTRACT Objectives: to analyze the effects of sexuality on frailty and quality of life in the elderly. Methods: a sectional study conducted with 662 elderly people between July and October 2020. Four self-administered instruments were used to collect bio-sociodemographic variables, sexuality, frailty and quality of life. Correlation analysis and structural equation modeling were performed. Results: among the dimensions that assess sexuality, sexual intercourse had a weak, positive effect on quality of life (SC: 0.134, 95%CI: 0.153 - 0.254, p = 0.027), while affective relationships had a strong, positive effect (SC: 0.556, 95%CI: 0.442 - 0.670, p < 0.001). Frailty was only significantly related to a weak to moderate negative effect with sexual intercourse (SC: -0.216, 95%CI: -0.385 - -0.047, p = 0.012). Conclusions: two dimensions of sexuality, Sexual intercourse and Affective relationships, were found to have an effect on the quality of life and frailty of the elderly people investigated.

RESUMEN Objetivos: analizar efectos de la sexualidad en la fragilidad y calidad de vida del anciano. Métodos: estudio seccional conducido con 662 ancianos entre julio y octubre de 2020. Utilizaron cuatro instrumentos autoaplicables para recogida de las variables biosociodemográficas, sexualidad, fragilidad y calidad de vida. Realizó un análisis de correlación y modelado de ecuaciones estructurales. Resultados: de entre las dimensiones que evalúan la sexualidad, el acto sexual ejerció efecto débil y positivo sobre la calidad de vida (CP: 0,134, IC95%:0,153 - 0,254, p = 0,027), mientras las relaciones afectivas tuvieron efecto fuerte y positivo (CP:0,556, IC95%:0,442 - 0,670, p < 0,001). La fragilidad sólo fue relevante relacionada a un efecto negativo, de débil a moderado, con el acto sexual (CP: -0,216, IC95%:-0,385 - -0,047, p = 0,012). Conclusiones: constató que dos dimensiones de la sexualidad, Acto sexual y Relaciones afectivas, ejercieron efectos sobre la calidad de vida y fragilidad de los ancianos investigados.

RESUMO Objetivos: analisar os efeitos da sexualidade na fragilidade e qualidade de vida da pessoa idosa. Métodos: estudo seccional conduzido com 662 pessoas idosas entre julho e outubro de 2020. Utilizaram-se quatro instrumentos autoaplicáveis para coleta das variáveis biossociodemográficas, sexualidade, fragilidade e qualidade de vida. Realizou-se uma análise de correlação e modelagem de equações estruturais. Resultados: dentre as dimensões que avaliam a sexualidade, o ato sexual exerceu efeito fraco e positivo sobre a qualidade de vida (CP: 0,134, IC95%:0,153 - 0,254, p = 0,027), enquanto as relações afetivas tiveram efeito forte e positivo (CP:0,556, IC95%:0,442 - 0,670, p < 0,001). A fragilidade só foi significantemente relacionada a um efeito negativo, de fraco a moderado, com o ato sexual (CP: -0,216, IC95%:-0,385 - -0,047, p = 0,012). Conclusões: constatouse que duas dimensões da sexualidade, Ato sexual e Relações afetivas, exerceram efeitos sobre a qualidade de vida e fragilidade das pessoas idosas investigadas.

Effects of sexuality on frailty and quality of life in the elderly: a cross-sectional study.

OBJECTIVES: to analyze the effects of sexuality on frailty and quality of life in the elderly. METHODS: a sectional study conducted with 662 elderly people between July and October 2020. Four self-administered instruments were used to collect bio-sociodemographic variables, sexuality, frailty and quality of life. Correlation analysis and structural equation modeling were performed. RESULTS: among the dimensions that assess sexuality, sexual intercourse had a weak, positive effect on quality of life (SC: 0.134, 95%CI: 0.153 - 0.254, p = 0.027), while affective relationships had a strong, positive effect (SC: 0.556, 95%CI: 0.442 - 0.670, p < 0.001). Frailty was only significantly related to a weak to moderate negative effect with sexual intercourse (SC: -0.216, 95%CI: -0.385 - -0.047, p = 0.012). CONCLUSIONS: two dimensions of sexuality, Sexual intercourse and Affective relationships, were found to have an effect on the quality of life and frailty of the elderly people investigated.

Proibição de doação sanguínea por pessoas homoafetivas: estudo bioético / Ban on blood donation from homoaffective people: a bioethical study / Prohibición de donaciones de sangre por homosexuales: un estudio bioético

Resumo Este estudo teve o objetivo de identificar e discutir aspectos bioéticos que envolvem a proibição de doação sanguínea por pessoas homoafetivas. Trata-se de revisão integrativa da literatura, com abordagem crítico-reflexiva de artigos disponíveis na Biblioteca Virtual em Saúde e publicados entre 2013 e 2018. Foram selecionados sete estudos que contemplaram a temática, a partir dos quais surgiram quatro categorias: "inaptidão para doação de sangue"; "só homossexuais praticam sexo anal?"; "saúde pública ou heterossexismo na saúde?"; e "considerações da bioética principialista para doação sanguínea de pessoas homoafetivas", remetendo aos quatro pilares da teoria principialista. A bioética promove reflexões sociais, direciona linhas de pensamento ou questionamento e cria novos espaços para discussão do assunto. Os dilemas envolvidos nessa abordagem dizem respeito à negação dos quatro pilares bioéticos aos sujeitos homoafetivos, induzindo maleficência a esse grupo vulnerável e aos receptores do tecido sanguíneo.

Abstract This study aimed to identify and discuss bioethical aspects that involve the ban on blood donation from homo-affective people. This is an integrative review of the literature, with a critical-reflexive approach to articles available in the Virtual Health Library and published between 2013 and 2018. Seven studies were selected that covered the theme, from which four categories emerged: "unfit for blood donation"; "are homosexuals the only ones who practice anal sex?"; "public health or heterosexism in health?"; and "considerations of principlist bioethics for blood donation from homo-affective people", referring to the four pillars of the principlist theory. Bioethics promotes social reflections, directs lines of thought or questioning and creates new avenues for discussing the subject. The dilemmas involved in this approach are related to the denial of the four bioethical pillars to homoaffective subjects, inducing maleficence to this vulnerable group and to blood tissue recipients.

Resumen Este estudio tiene el objetivo de identificar y discutir algunos aspectos bioéticos que implican la prohibición de donaciones de sangre por homosexuales. Se trata de una revisión integrativa de la literatura con el abordaje crítico y reflexivo elaborada con artículos incluidos en la Biblioteca Virtual en Salud y publicados entre 2013 y 2018. Se seleccionaron siete estudios para abordar el tema, de los que resultaron cuatro categorías: "imposibilidad de donar sangre"; "¿Solo los homosexuales practican el sexo anal?"; "¿Salud pública o heterosexismo en la salud?"; y "consideraciones de la bioética principialista para la donación de sangre de las personas homoafectivas", abordando los cuatro principios de la teoría principialista. La bioética promueve la reflexión social, dirige las líneas de pensamiento o el cuestionamiento y crea nuevos espacios de debate. Los dilemas de este enfoque se refieren a la negación de los cuatro pilares bioéticos a los sujetos homoafectivos, lo que induce a la maleficencia a este grupo vulnerable y a los receptores de tejidos sanguíneos.

Insuficiência renal aguda no Nordeste brasileiro: morbimortalidade e custos públicos / Acute kidney failure in Northeast brazil: morbimortality and public costs

Objetivo: descrever a morbimortalidade hospitalar e custos públicos relacionados à insuficiência renal aguda no Nordeste brasileiro. Método: trata-se de estudo quantitativo, ecológico e descritivo realizado com dados do Sistema de Informações Hospitalares. Coletaram-se as variáveis: internações; óbitos; mortalidade; valores dos serviços hospitalares; valores médios gastos com as internações e média de permanência hospitalar. Analisaram-se os dados com estatística descritiva, apresentando-os em tabelas elaboradas pelo software Excel. Resultados: registraram-se 21.100 internações, 4.460 óbitos e mortalidade de 21,1%. Destacaram-se a Bahia nas internações (28,6%) e óbitos (28,7%) e Sergipe na letalidade (35,6%). Gerou-se custo público superior a R$ 37,6 milhões e a Bahia responsabilizou-se por 32,1%. Revelou-se valor médio de R$ 1.969,97 para cada internação e a média de permanência hospitalar foi de 10,2 dias. Conclusão: conclui-se que as variáveis epidemiológicas apresentaram maior prevalência nos Estados da Bahia e Sergipe. Evidenciou-se, além disso, comportamento crescente das internações, implicando o incremento dos custos públicos.(AU)

Objective: to describe hospital morbidity and mortality and public costs related to acute renal failure in northeastern Brazil. Method: this is a quantitative, ecological and descriptive study conducted with data from the Hospital Information System. The following variables were collected: hospitalizations; deaths; mortality; values of hospital services; average values spent on hospitalizations and average hospital stay. Data was analyzed with descriptive statistics and presented in tables prepared by Excel software. Results: 21,100 hospitalizations, 4,460 deaths and 21.1% mortality were registered. Bahia stood out in hospitalizations (28.6%) and deaths (28.7%) and Sergipe in lethality (35.6%). It generated a public cost over R $ 37.6 million and Bahia accounted for 32.1%. An average value of R $ 1,969.97 was revealed for each hospitalization and the average hospital stay was 10.2 days. Conclusion: it is concluded that the epidemiological variables were more prevalent in the states of Bahia and Sergipe. In addition, the increasing behavior of hospitalizations was evidenced, implying an increase in public costs.(AU)

Objetivo: describir la morbimortalidad hospitalaria y los costos públicos relacionados con la Insuficiencia Renal Aguda en el Noreste de Brasil. Método: se trata de un estudio cuantitativo, ecológico y descriptivo realizado con datos del Sistema de Informaciones Hospitalarias. Se recogieron las siguientes variables: hospitalizaciones; muertes, mortalidad, valores de los servicios hospitalarios; promedio de valores gastados en admisiones y promedio de permanencia hospitalaria. Los datos se analizaron con estadísticas descriptivas y se presentaron en tablas elaboradas por el software Excel. Resultados: se registraron 21.100 admisiones, 4.460 muertes y 21.1% de mortalidad. Bahía se destacó en hospitalizaciones (28.6%) y muertes (28.7%), y Sergipe en letalidad (35.6%). Se generó un costo público de más de R$ 37,6 millones y Bahía fue responsable del 32.1%. El valor medio de R $ 1,969.97 se reveló para cada hospitalización y la permanencia hospitalaria con promedio de 10,2 días. Conclusión: se concluye que las variables epidemiológicas presentaron mayor prevalencia en los Estados de Bahía y Sergipe. Además, hubo evidencia de un mayor comportamiento de hospitalización, lo que implica un aumento en los costos públicos.(AU)

Interface do testamento vital com a bioética, atuação profissional e autonomia do paciente / Correlation of living will, bioethics, professional activity and patient autonomy / Relación entre testamento vital, bioética, actuación profesional y autonomía del paciente

RESUMO Objetivo Analisar a relação do testamento vital com os aspectos bioéticos, a atuação profissional e a autonomia do paciente. Método Trata-se de uma reflexão teórica, realizada a partir de busca nos bancos de dados, Biblioteca Virtual de Saúde, Pubmed e Scielo utilizando os vocábulos "testamento vital", "direito do paciente", "bioética", "autonomia pessoal" e "profissional de saúde", e os respectivos termos na língua inglesa. A partir da leitura dos resumos encontrados foram selecionados aqueles que atendiam ao objetivo proposto e localizados os textos completos, os quais foram lidos criticamente, para subsidiar essa reflexão. Resultados As análises trazem reflexões da bioética aplicada às questões de Finitude da vida, o conhecimento dos profissionais de saúde quanto os direitos do paciente em doença terminal, bem como a autonomia do paciente quanto aos seus direitos previsto pelo testamento vital. Conclusão O "Testamento Vital" ainda é um termo pouco conhecido, mas precisa de uma maior divulgação e conhecimento entre os profissionais de saúde e a população, pois o mesmo diz respeito à legitimação de um direito do paciente, em momento crucial de sua existência humana.(AU)

ABSTRACT Objective To analyze the correlation between living will and bioethical aspects, professional performance and patient autonomy. Methods Theoretical reflection after a search conducted in the Virtual Health Library, PubMed and SciELO databases, using the words "living will", "right of the patient", "bioethics", "personal autonomy" and "health professional", as well as the corresponding terms in Portuguese. Based on the reading, abstracts that met the proposed objective were selected and full texts were subsequently consulted and read critically to support this reflection. Results Analyzes led to reflect on bioethics applied to health professional knowledge on the rights of terminally ill patients, as well as their autonomy regarding their living will. Conclusion "Living will" is still a poorly understood term that needs greater dissemination and knowledge among health professionals and the population, as it addresses the legitimacy of patient's rights at a crucial moment of human life.(AU)

RESUMEN Objetivo Analizar la relación del testamento vital con los aspectos bioéticos, la actuación profesional y la autonomía del paciente. Método Consiste en una reflexión teórica, realizada a partir de la búsqueda en los bancos de datos, Biblioteca Virtual de Salud, PUBMED y SciELO utilizando los vocablos "testamento vital", "derecho del paciente", "bioética", "autonomía personal" y "profesional de la salud", y sus respectivos términos en la lengua inglesa. A partir de la lectura de los resúmenes encontrados fueron seleccionados aquellos que atendían al objetivo propuesto y localizados los textos completos, los cuales fueron leídos críticamente, para sustentar esa reflexión. Resultados Los análisis traen reflexiones de la bioética aplicada a las cuestiones de finitud de la vida, el conocimiento de los profesionales de salud como los derechos del paciente en enfermedad terminal, así como la autonomía del paciente en cuanto a sus derechos previstos por el testamento vital. Conclusión El "Testamento Vital" todavía es un término poco conocido, pero necesita una mayor divulgación y conocimiento entre los profesionales de la salud y la población, pues lo mismo se refiere a la legitimación de un derecho del paciente, en el momento crucial de su existencia humana.(AU)

Lower limb strength, but not sensorial integration, explains the age-associated postural control impairment.

INTRODUCTION: The aging process leads to functional decline of sensorial organs, muscle mass and strength, as well as the sensorimotor integration, culminating in age-associated postural control impairments. The purpose of this study was to compare the balance, the sensorial integration process and the lower limb strength among three old aged groups. METHODS: Eighty-one community-dwelling healthy old people (58% women), assigned into three age groups [60-69 years (n=30), 70-79 years (n=40), and ≥80 years (n=11)], participated in this study. All participants were submitted to anthropometric and stabilometric evaluation, and carried out a Chair stand test. Stabilometric parameters obtained from time [amplitude displacement of center of pressure (CoP)] and frequency (oscillations of CoP at sub 0.3 Hz and 1-3 Hz bands) domain analysis were used as the indicators of balance performance and sensorial integration, respectively. RESULTS: Our results revealed that the CoP amplitude displacement was significantly greater in the older aged group, without differences in spectral bands, while the performance in the Chair stand test was smaller in the older aged group. CONCLUSION: These data indicate that the age-associated postural control impairment is explained by the lower limb strength declines, but not by the age-associated changes in sensorial integration. LEVEL OF EVIDENCE: III.

Reliability analysis of the heart autonomic control parameters during hemodialysis sessions.

The study of heart autonomic control (HAC) in patients with chronic kidney disease (CKD) undergoing dialysis treatment has been carried out, however, there are no studies reporting the reliability of measurements of HAC parameters involving the mentioned samples and conditions. The reliability of many HAC parameters was evaluated from patients with CKD during two sessions of hemodialysis. The successive R-R intervals were recorded during two sessions of hemodialysis from 14 CKD patients that were undergoing dialysis for at least 6 months and with no history of recurrent hypotensive events. HAC parameters were obtained with time and frequency domain analysis, as well as with nonlinear methods. The reliability was measured with the intraclass correlation coefficient (ICC). The results showed excellent reliability (ICC=0.90-0.98) for most heart rate variability (HRV) parameters, especially the parameters obtained in the time domain [square root of the mean squared differences between successive R-R intervals (RMSSD), percentage of adjacent R-R intervals that differ by more than 50 ms (pNN50), mean of the 5-min standard deviations of R-R intervals (SDNNi), and triangular index] and with non-linear methods [standard deviation of the instantaneous variability beat-to-beat (SD1), standard deviation in long-term continuous R-R intervals (SD2), detrended fluctuation analysis (DFA) α1 and α2, approximate and sample entropies, and correlation dimension (D2): ICC=0.86-0.96]. Among the parameters obtained in the frequency domain (normalized magnitude from the spectrum of low-frequency components (LFnu), normalized magnitude from the spectrum of high-frequency components (HFnu), and LF/HF ratio), the LF/HF ratio showed better reliability (ICC=0.96 vs. ICC=0.70). Measurements of HAC parameters have excellent test-retest reliability for the studied samples and conditions.

El uso de manga de compresión durante 12 horas no es suficiente para mejorar la recuperación muscular del brazo tras el daño inducido por el ejercicio / Twelve hours of a compression sleeve is not enough to improve the muscle recovery of an exercise-damaged upper arm

Objetivo: Evaluar la eficacia de la manga de compresión usada durante un período de tiempo corto (12 h) en la recuperación de los síntomas de daño muscular inducido por el ejercicio de los músculos del brazo. Métodos: En un estudio aleatorizado controlado, 13 hombres jóvenes sanos realizaron un protocolo de ejercicio estandarizado para inducir daño muscular para los flexores del codo y se dividieron inmediatamente en 2 grupos: tratados (n = 7) y control (n = 6). Se tomaron medidas de la fuerza isométrica de flexión del codo, la circunferencia del brazo (CB) y la percepción del dolor muscular antes y 24, 48, 72 y 96 h después del ejercicio, y se utilizaron como criterios de daño muscular inducido por el ejercicio. Comparaciones entre grupos se hicieron para cada variable con un ANOVA de 2 vías (2 grupos × 5 medidas) y con un nivel de significación de p < 0,05. Resultados: Se observó una reducción significativa (p < 0,001) de la fuerza muscular (∼43% y ∼34% para el grupo control y tratados, respectivamente, 24 h después del ejercicio) y un aumento significativo (p < 0,001) en la circunferencia del brazo y dolor muscular (F4,55 = 6,49 para CB y F4,55 = 6,95 para dolor muscular) a lo largo de las medidas después del ejercicio en ambos grupos, sin diferencias significativas entre ellos. Conclusiones: Nuestros resultados, junto con los hallazgos previos, sugieren que el uso de la manga de compresión durante 12 h no es suficiente para mejorar la recuperación de los síntomas de daño muscular inducido por el ejercicio de los músculos del brazo, y para lograr resultados positivos son necesarios largos períodos de compresión

Objective: To assess the efficacy of a compression sleeve worn for a short-time period (12 h) on the recovery from the symptoms of exercise-induced upper arm muscle damage. Methods: A randomized controlled study was conducted on thirteen healthy young men using a standardized and exercise-induced upper arm muscle damage protocol, and they were immediately placed into two groups: TREATED (n = 7) and CONTROL (n = 6). Isometric elbow flexion strength, upper arm circumference, and muscle soreness measurements were taken before and at 24, 48, 72 and 96 h after the damaging exercise, and were used as criteria of exercise-induced muscle damage. Group comparisons were made for each variable using a two-way ANOVA design (2 groups × 5 measurements), and with a significance level of P < .05. Results: A significant impairment (P < .001) was observed in muscle strength (∼ 43% and ∼ 34%, for CONTROL and TREATED groups, respectively, 24 h after exercise), as well as a significant increase (P < .001) in upper arm circumference (UAC) and muscle soreness (F4,55 = 6.49 for UACand F4,55 = 6.95 for muscle soreness) among the measurements after exercise for both groups, with no significant differences between them. Conclusions: These results, together with previous findings, suggest that the use of a compression garment for 12 h is not enough to improve the recovery from exercise- induced muscle damage in the upper arm, and longer periods of compression may be necessary to achieve positive outcomes