Plasma Levels of Interferon Gamma associated with Hearing Loss and Hearing Loss Sensation through the Handicap Questionnaire Inventory for the Elderly Screening Version.

OBJECTIVE: The aim of this study was to verify the association between the auditory handicap found in the Hearing Handicap Inventory for the Elderly-Screening Version (HHIE-S) questionnaire and hearing loss and the plasma levels of inflammatory biomarkers. MATERIALS AND METHODS: Cross-sectional study with 76 participants, 67 (88%) females and 9 (12%) males, with a mean age of 70 years. Tonal threshold audiometry and self-assessment with HHIE-S questionnaire were performed to measure the plasma levels of interleukin-2 (IL-2), IL-4, IL-6, and IL-10; tumor necrosis factor alpha; and interferon gamma (IFN-γ) flow cytometry method. For all data analyzed, the significance level adopted was P < 0.05 and 95% confidence interval. RESULTS: An inverse correlation was observed between the increase in plasma levels of IFN-γ and normal auditory handicap (P = 0.015; rs = -0.280). The severe handicap group showed an increase in the averages I (P = 0.005; rs = 0.350) and II (P = 0.016; rs = 0.368) in the right ear and the light/moderate handicap group increased the means I (P = 0.027; rs = 0.350) and II (P = 0.046; rs = 0.310) of the left ear. A statistically significant association was found between the speech recognition threshold (SRT) test results of the right ear and the severe handicap group (P = 0.002; rs = 0.271). CONCLUSIONS: There was an association between the increase in plasma levels of IFN-γ and normal auditory handicap. Additionally, statistically significant associations were observed between the mild/moderate and severe handicap groups with the increase in hearing means and an increase in SRT associated with the severe handicap group.

Bilateral Idiopathic Carpal Tunnel Syndrome: Clinical-Functional Characterization and Efficacy of Two Combined Postoperative Physiotherapeutic Treatments.

OBJECTIVE: To evaluate the efficacy of combined association instrument myofascial mobilization (IASTM) and stretching in patients with idiopathic bilateral carpal tunnel syndrome (CTS) operated on one hand and to analyze the response of the operated (OH) and non-operated (NH) hand according to the sequence of therapies. Research on these parameters has not yet been found in the literature. METHODS: Randomized controlled crossover study with 43 participants using the objective and subjective outcome variables. Patients were randomly assigned to two groups: starting with stretching followed by IASTM and starting with IASTM followed by stretching. Then patients underwent surgery on the hand with more severe involvement and physical therapy rehabilitation was started 30 days after for a period of 4 weeks. After the 1-week interval the participants who started with stretching were referred to IASTM and vice versa, following the same previous patterns. The outpatient reassessments took place at 3 to 6 months. Crossover ANOVA and effect sizes were used as analysis methods. RESULTS: Time was the most significant outcome for all variables both during therapies and at 6-month follow-up. Regarding response to the combined therapies between OH and NH, there were differences for both OH and NH, with the greatest impact on NH for the palmar grip and VAS variables. The treatment sequences were significant for pain on the NH and mental SF-12, suggesting that starting with IASTM followed by stretching had a superior outcome for these outcomes. CONCLUSION: The combination of IASTM with stretching, used in the postoperative period of bilateral idiopathic CTS, proved to be supplementary, with significant results and large effect sizes for most of the outcomes assessed, both during the time of application of the therapies and in the 6-month follow-up for both hands, and may constitute a viable therapeutic alternative for this population.

Laser de baixa potência na cicatrização e analgesia de lesões mamilares: ensaio clínico / Low lavel laser in the healinh and analgesia of nipples trauma: clinical trial / Láser de baja potencia en la curación y analgesia de pezones juveniles: un ensayo clínico

Objetivo: Analisar a eficácia do laser de baixa potência, modalidade local e sistêmico, para cicatrização e redução da dor ocasionadas por lesões mamilares. Métodos: Ensaio clínico, randomizado e controlado realizado com 54 lactantes atendidas em um Banco de Leite Humano, de dezembro de 2017 a junho de 2018. As lactantes, que somaram um total 101 lesões, receberam orientações referentes ao manejo clínico das mamas e foram alocadas em: Grupo Controle (GC), Grupo Laser Local (GLL), que receberam laser diretamente no mamilo lesionado e Grupo Irradiation Laser Intravascular of Blood (GILIB), que receberam a laserterapia sistêmica. Os dados foram analisados no SPSS para avaliação da homogeneidade dos grupos (Kruskal-Wallis) e regressão linear para identificação do efeito da intervenção no tamanho das lesões mamárias e intensidade da dor. Resultados: Os três grupos de análise se mostaram homogêneos antes do experimento (p=0,191). Após a intervenção, houve cicatrização das lesões nos três grupos, sendo significativamente maior no GLL e GILIB (p<0,050). Quanto à dor, houve redução em até 4.0 pontos no GLL e GILIB (p=0,002). Conclusão: A administração da laserterapia local e sistêmica foi mais eficaz para a cicatrização das lesões mamilares e redução da dor, quando comparadas ao grupo controle. (AU)

Objective: To analyze the effectiveness of the low-potency laser, local and systemic, for the healing and reduction of pain caused by nipple trauma. Methods: Clinical, randomized and controlled trial carried out with 54 lactating women assisted in a Human Milk Bank, from December 2017 to June 2018. The lactating women, which totaled 101 lesions, received guidance on the clinical management of their breasts and breasts designated in: Control Group (CG), Local Laser Group (GLL), which received laser directly on the injured nipple, and Intravascular Blood Laser Irradiation Group (GILIB), which received systemic laser therapy. Data were analyzed using the SPSS to assess the homogeneity of the groups (Kruskal-Wallis) and the linear regression to identify the effect of the intervention on the size of breast lesions and the intensity of pain. Results: The three analysis groups were homogeneous before the experiment (p=0.191). After the intervention, the healing of the lesions in the three groups was significantly higher in GLL and GILIB (p<0.050). As for the pain, there is a reduction of up to 4.0 points in GLL and GILIB (p=0.002). Conclusion: The administration of local and systemic laser therapy was more effective for the cure of nipple trauma and pain reduction, in comparison with the control group. (AU)

Objetivo: Analizar la efectividad del láser de baja potencia, local y sistémico, para la cicatrización y reducción del dolor causado por las lesiones del pezón. Métodos: Ensayo clínico, aleatorizado y controlado realizado con 54 mujeres lactantes atendidas en un Banco de Leche Humana, de diciembre de 2017 a junio de 2018. Las mujeres lactantes, que totalizaron 101 lesiones, recibieron orientación sobre el manejo clínico de las mamas y fueron asignadas en: Grupo de Control (CG), Grupo de Láser Local (GLL), que recibió láser directamente en el pezón lesionado, y Grupo de Irradiación de Láser Intravascular de Sangre (GILIB), que recibió terapia con láser sistémico. Los datos se analizaron mediante el SPSS para evaluar la homogeneidad de los grupos (Kruskal-Wallis) y la regresión lineal para identificar el efecto de la intervención sobre el tamaño de las lesiones mamarias y la intensidad del dolor. Resultados: Los tres grupos de análisis eran homogéneos antes del experimento (p=0,191). Tras la intervención, hubo curación de las lesiones en los tres grupos, siendo significativamente mayor en GLL y GILIB (p<0,050). En cuanto al dolor, hubo una reducción de hasta 4,0 puntos en GLL y GILIB (p=0,002). Conclusión: La administración de la terapia con láser local y sistémica fue más efectiva para la curación de las lesiones del pezón y la reducción del dolor, en comparación con el grupo de control. (AU)

Different kinesio taping tensions present similar benefits for postural control, dynamic balance, agility and instability sensation in individuals with chronic ankle instability: randomized clinical trial / Diferentes tensões de kinesio taping apresentam benefícios semelhantes para controle postural, equilíbrio dinâmico, agilidade e sensação de instabilidade em indivíduos com instabilidade crônica do tornozelo: ensaio clínico randomizado

Abstract Ankle sprain is the most common injury in the lower limbs of physically active individuals, and one of its complications is chronic ankle instability (CAI), for which Kinesio Taping (KT) can be an alternative treatment. The aim of this study was to compare two treatment protocols with KT at different tensions on postural control, dynamic balance, agility and instability in individuals with chronic ankle instability. This is a randomized clinical trial in which postural control was evaluated through the force platform, agility by the side Hop Test, dynamic balance by the modified Star Excursion balance Test, and application of the Cumberland Ankle Tool Instability and Foot and Ankle Outcome Score to assess self-reported instability and functional instability. An initial assessment was conducted, followed by 5 weeks of intervention with weekly applications of KT, and one week after the completion of the intervention, a reassessment was performed. 21 participants were distributed to the group KT with tension (KTT: n=11) and the group KT without tension (KTWT: n=10). KT improves postural control (anteroposterior velocity: p=0.006 and mediolateral: p<0.001; anteroposterior frequency: p<0.001 and mediolateral: p=0.043 of the area of the center of pressure), dynamic balance (p< 0.001), agility (p=0.001) and feeling of instability in individuals with ICT (p=0.001) for both groups. Only one variable, sports category of the FAOS-FOOT questionnaire showed significant change (p=0.008). KT, with or without tension, is able to improve postural control, balanced balance, postural control, and feelings of instability in young adults with ICT.

Resumo A entorse de tornozelo, uma lesão comum em indivíduos fisicamente ativos, frequentemente resulta em uma complicação chamada instabilidade crônica do tornozelo (ICT). A Kinesio Taping (KT) pode ser uma alternativa de tratamento para essa condição. O objetivo deste estudo foi comparar dois protocolos de tratamento com KT em diferentes tensões no controle postural, equilíbrio dinâmico, agilidade e instabilidade em indivíduos com instabilidade crônica do tornozelo. Trata-se de um ensaio clínico randomizado no qual o controle postural foi avaliado por meio da plataforma de força, a agilidade pelo side Hop Test, o equilíbrio dinâmico pelo Star Excursion balance Test modificado e para avaliar instabilidade funcional e autorrelatada aplicou-se o Foot and Ankle Outcome Score e o Cumberland Ankle Tool Instability. Foi realizada uma avaliação inicial, seguida de 5 semanas de intervenção com aplicações semanais de KT, e uma semana após o término da intervenção, foi realizada uma reavaliação. 21 participantes foram distribuídos para o grupo KT com tensão (KTT: n=11) e o grupo KT sem tensão (KTWT: n=10). KT melhora o controle postural (velocidade ântero-posterior: p=0,006 e médio-lateral: p<0,001; frequência anteroposterior: p<0,001 e médio-lateral: p=0,043 da área do centro de pressão), equilíbrio dinâmico (p<0,001), agilidade (p=0,001) e sensação de instabilidade em indivíduos com ICT (p=0,001) para ambos os grupos. Apenas uma variável, categoria esportiva, do questionário FAOS-FOOT apresentou alteração significativa (p=0,008). O KT, com ou sem tensão, é capaz de melhorar o controle postural, o equilíbrio equilibrado, o controle postural e a sensação de instabilidade em adultos jovens com ICT.

Progressive tension protocol for muscle strength with Kinesio tape in runners - double-blind randomized clinical trial / Protocolo de tensão progressiva para força muscular com Kinesio tape em corredores - ensaio clínico randomizado duplo-cego

Abstract Introduction Kinesio tape (KT), although frequently used in sports, is still a matter of debate, and the results of studies that evaluated its effects on muscle strength (MS) in athletes are still inconclusive and contradictory. Objective To evaluate the effect of a progressive KT tension protocol on knee MS in runners over an eight-week intervention. Methods Clinical trial involving 49 runners of both sexes randomized into two groups: KT (KT with progressive tension protocol) and placebo (KT without tension). The MS of knee flexors and extensors was evaluated by isokinetic dynamometer (60º/s and 90º/s) at four moments: (1) without KT; (2) with KT and without tension; (3) without KT (after 8 weeks after of intervention); (4) with KT and with tension (after 8 weeks after of intervention). Inter- and intra-group comparisons were made. The significance level adopted was 95% (p < 0.05). Results There were no significant differences in MS between the groups at any of the evaluated moments. There was a statistically significant difference in MS (60º/s) in both groups (KT and placebo) when comparing moments 4 and 2 for knee flexors, and in the placebo group between moments 4 and 2 and moments 4 and 3 for knee extensors. Conclusion The progressive tension protocol of KT was not able to intervene in the SM gain of knee flexors and extensors of runners in inter and intragroup comparisons.

Resumo Introdução A Kinesio tape (KT), apesar de muito utilizada na prática esportiva, ainda é motivo de debate e os resultados de estudos que avaliaram seus efeitos na força muscular (FM) em atletas ainda são inconclusivos e contraditórios. Objetivo Avaliar o efeito de um protocolo de tensão progressiva KT na FM do joelho em corredores ao longo de uma intervenção de oito semanas. Métodos Ensaio clínico envolvendo 49 corredores de ambos os sexos randomizados em dois grupos: KT (KT com protocolo de tensão progressiva) e placebo (KT sem tensão). A FM dos flexores e extensores do joelho foi avaliada por dinamômetro isocinético (60º/s e 90º/s) em quatro momentos: (1) sem KT; (2) com KT e sem tensão; (3) sem KT (após 8 semanas); (4) com KT e com tensão (pós-protocolo 8 semanas). Comparações inter e intragrupos foram feitas. O nível de significância adotado foi de 95% (p < 0,05). Resultados Não houve diferenças signi-ficativas na FM entre os grupos em nenhum dos momentos avaliados. Houve diferença estatisticamente significante na FM (60º/s) em ambos os grupos (KT e placebo, quando comparados os momentos 4 e 2 para flexores de joelho, e no grupo placebo entre os momentos 4 e 2 e os momentos 4 e 3 para extensores de joelho. Conclusão O protocolo de tensão progressiva de KT não foi capaz de intervir no ganho de FM de flexores e extensores de joelho de corredores em comparações inter e intragrupos.

Impact of cervical pain, neck mobility, and body mass index on teachers' postural control / Impacto da dor cervical, da mobilidade e do índice de massa corporal no controle postural de professores

ABSTRACT Purpose: to analyze the impact of neck pain, neck mobility, and body mass index on teachers' postural control. Methods: a cross-sectional study with 54 state public school teachers, 68.5% (n = 37) being females, with a mean age of 46.5 ± 9.3 years. Data were collected with the following instruments: Craniocervical Dysfunction Index (Brazilian version), force platform in bipedal and semi-tandem stance, visual analog scale, cervical mobility index, and body mass index. Data were analyzed with nonparametric statistics and multiple linear regression; the significance level was set at p<0.05, with 95% confidence intervals. Results: teachers with neck pain and severely impaired neck mobility had greater postural control changes in the semi-tandem stance. In the bipedal stance, those with mild mobility changes and neck pain had a smaller total displacement. Obese teachers had a smaller movement amplitude in the anteroposterior and mediolateral directions. Conclusion: teachers presented with neck pain and severely impaired neck mobility had a worse postural control. Obese teachers had a smaller total amplitude in both movement directions.

RESUMO Objetivo: analisar o impacto da cervicalgia, mobilidade cervical e índice de massa corporal no controle postural de professores. Métodos: estudo transversal com 54 professores da rede estadual de ensino, com média de idade de 46,5 ± 9,3 anos, dos quais: 68,5% (n = 37) eram do sexo feminino. A coleta de dados teve como base os seguintes instrumentos: Craniocervical Dysfunction Index (versão brasileira), plataforma de força na posição bipodal e semitandem, escala visual analógica, índice de mobilidade cervical e índice de massa corporal. Para análise dos dados, foi utilizada estatística não paramétrica e análise de regressão linear múltipla, com nível de significância p<0,05 e intervalo de confiança de 95%. Resultados: os professores com cervicalgia e comprometimento severo da mobilidade cervical tiveram maior alteração do controle postural na posição semitandem. Na posição bipodal, aqueles com leve alteração da mobilidade e dor cervical apresentaram menor deslocamento total, assim como professores obesos demostraram menor amplitude de movimento nas direções anteroposterior e médio-lateral. Conclusão: os professores com cervicalgia e comprometimento severo da mobilidade cervical tiveram pior controle postural. Já os obesos apresentaram menor amplitude total em ambas as direções do movimento.

Does photobiomodulation improve muscle performance and recovery? a systematic review / ¿la fotobiomodulación mejora el desempeño y la recuperación muscular? una revisión sistemática / A fotobiomodulação melhora o desempenho e a recuperação muscular? uma revisão sistemática

ABSTRACT Photobiomodulation (PBM) appears to limit exercise-induced muscle damage, improve biochemical and functional recovery, and reduce inflammation and oxidative stress. This systematic review aimed to evaluate the effectiveness of photobiomodulation (PBM) in skeletal muscle recovery after exercise, addressing the different types of lasers and parameters used. Randomized clinical trials (RCTs) comparing the effects of PBM were included. The primary outcome evaluated was performance, and the secondary was inflammatory marker expression. The searches were conducted in March 2021. Fifteen RCTs that met the inclusion criteria were included. There was significant variability regarding the doses and wavelengths used, as well as in the types of lasers. However, in most studies, PBM promoted improvement of maximum voluntary contraction, better oxygen consumption, increased time to achieve exhaustion and fatigue, and decreased creatine kinase (CK), oxidative stress, and fatigue markers, mainly when used before exercise. Photobiomodulation applied before exercise, regardless of variations in doses and wavelengths, improves muscle performance and decreases levels of inflammation and fatigue markers. Evidence level II; Systematic review of level II studies.

RESUMEN La fotobiomodulación (PBM) parece aliviar el daño muscular inducido por el ejercicio, mejorando la recuperación bioquímica y funcional y reduciendo la inflamación y el estrés oxidativo. Esta revisión sistemática tuvo como objetivo evaluar la eficacia de la fotobiomodulación (PBM) en la recuperación del músculo esquelético después del ejercicio, abordando los diferentes tipos de láseres y parámetros utilizados. Se incluyeron ensayos clínicos aleatorizados (ECA) que compararon los efectos de la PBM. El resultado primario evaluado fue el desempeño y el secundario fue la expresión de marcadores inflamatorios. Se analizaron los estudios publicados hasta marzo de 2021. Resultados: Se incluyeron quince ensayos clínicos aleatorizados que cumplían los criterios de inclusión. Hubo una importante variabilidad en cuanto a las dosis y longitudes de onda utilizadas, así como al tipo de láser. Sin embargo, en la mayoría de los estudios, la PBM promovió una mejor contracción voluntaria máxima, un mejor consumo de oxígeno, un mayor tiempo para alcanzar el agotamiento y la fatiga, y una disminución de los niveles de creatina quinasa (CK), del estrés oxidativo y de los marcadores de fatiga, especialmente cuando se utiliza antes del ejercicio. La fotobiomodulación aplicada antes del ejercicio, a pesar de presentar gran variabilidad de dosis y longitudes de onda, ha demostrado mejorar el desempeño muscular y disminuir los niveles de marcadores inflamatorios y de fatiga. Nivel de evidencia II; Revisión sistemática de estudios de nivel II.

RESUMO A fotobiomodulação (PBM) parece amenizar o dano muscular induzido pelo exercício, melhorando a recuperação bioquímica e funcional e reduzindo a inflamação e o estresse oxidativo. Esta revisão sistemática teve como objetivo avaliar a eficácia da fotobiomodulação (PBM) na recuperação do músculo esquelético depois do exercício, abordando os diferentes tipos de lasers e parâmetros utilizados. Foram incluídos estudos clínicos randomizados (RCTs) que comparam os efeitos da PBM. O desfecho primário avaliado foi o desempenho e o secundário foi a expressão de marcadores inflamatórios. Foram analisados estudos publicados até março de 2021. Foram incluídos 15 RCTs que atenderam aos critérios de inclusão. Houve variabilidade significativa quanto às doses e comprimentos de onda usados, bem como aos tipos de laser. Porém, na maioria dos estudos, a PBM promoveu melhora da contração voluntária máxima, melhor consumo de oxigênio, aumento do tempo para atingir exaustão e fadiga, e diminuição dos níveis de creatina quinase (CK), estresse oxidativo e marcadores de fadiga, principalmente quando usado antes do exercício. A fotobiomodulação aplicada antes do exercício, apesar de apresentar grande variabilidade de doses e comprimentos de onda, melhora o desempenho muscular e diminui os níveis de marcados inflamatórios e de fadiga. Nível de evidência II; Revisão sistemática de estudos de Nível II .

Effects of photobiomodulation and deep water running in patients with chronic non-specific low back pain: a randomized controlled trial.

Photobiomodulation therapy (PBM) is often used to treat musculoskeletal disorders such as chronic non-specific low back pain (NSCLBP) as it can have positive effects on biomarkers-creatine kinase (CK) and serum cortisol levels-related to stress caused by physical exercise, such as deep water running (DWR) or by pain. The aim of this study was to evaluate the effects of the combination of PBM and aquatic exercise (DWR) on the intensity of pain, disability, 6-min walk test adapted (6WTA), and on cortisol and creatine kinase (CK) levels in a population with NSCLBP. The participants were allocated into three groups: TGPBM (Photobiomodulation and Training Group), TGPLA (Placebo Photobiomodulation and Training Group), and the GPBM (Photobiomodulation Group). Information regarding anthropometric data, blood pressure, and heart rate were collected, and the questionnaires were applied: IPAQ-Short Form, Oswestry Disability Index, and the Visual Analog Scale for Pain. The submaximal exercise test (6WTA) was performed. Blood was collected for analysis of cortisol and CK levels. The training sessions were performed twice a week, for 4 weeks. In the intragroup comparisons, there were statistically significant changes in the TGPBM and GPBM groups in the outcomes pain intensity, disability (reductions in both groups), and in cortisol (increased in the TGPBM and reduced in the GPBM); in the TGPLA group, there was a statistically significant reduction only in the outcome of pain intensity. In the intergroup comparison, in the comparison between TGPBM and TGPLA, there was a statistically significant difference in the level of cortisol, as well as in the comparison between TGPBM and GPBM, in which there was a statistically significant difference for this same outcome (cortisol) and for the 6WTA outcome. The effects of the combination of PBM and aquatic exercise have positive effects on reducing pain intensity, disability, and cortisol levels, but its effects on other variables (6WTA and CK) are too small to be considered significant. Trial registration number: NCT03465228-April 3, 2019; retrospectively registered (ClinicalTrials.gov).

Systemic photobiomodulation in nursing professionals with chronic low back pain.

Introduction: Chronic low back pain is a frequent complaint at health care services, leading to absenteeism and high treatment costs. Photobiomodulation is a cost-effective, non-pharmacological treatment option. Objectives: To assess the cost of systemic photobiomodulation in nursing professionals with chronic low back pain. Methods: This is a cross-sectional analytical study that analyzed the absorption costing of systemic photobiomodulation in chronic low back pain and was performed in a large university hospital with 20 nursing professionals. Ten systemic photobiomodulation sessions were performed using MM Optics® laser equipment at 660 nm wavelength, 100 mW power, 33 J/cm2 dose, for 30 minutes on the left radial artery. Direct (supplies and direct labor costs) and indirect costs (equipment and infrastructure) were measured. Results: The mean cost of photobiomodulation was R$ 25.30 ± 0.50, and the mean duration was 1,890 seconds ± 55.0. Regarding the first, fifth, and tenth sessions, labor costs were the highest (66%), followed by infrastructure (22%), supplies (9%), and the laser equipment, which presented the lowest cost (2.8%). Conclusions: Systemic photobiomodulation was shown to be a low-cost therapy when compared to other therapies. The laser equipment represented the lowest cost in the general composition.

Introdução: A dor lombar crônica é uma queixa frequente em serviços de saúde, ocasionando absenteísmo e altos custos com o tratamento. A fotobiomodulação é uma opção de tratamento não farmacológica com bom custo-benefício. Objetivos: Aferir o custo da fotobiomodulação sistêmica em profissionais da enfermagem com dor lombar crônica. Métodos: Pesquisa transversal analítica para análise do custeio por absorção da fotobiomodulação sistêmica na dor lombar crônica, em hospital universitário de grande porte, com 20 profissionais da enfermagem. Foram realizadas 10 sessões de fotobiomodulação sistêmica com laser da empresa MM Optics®, onda de 660 nm, 100 mW de potência, dose de 33 joules/cm2, 30 minutos em artéria radial esquerda. Foram mensurados os custos diretos (insumos e valor da mão de obra direta do profissional) e indiretos (equipamento e infraestrutura do consultório). Resultados: O custo médio da fotobiomodulação foi de R$ 25,30±0,50, e o tempo médio foi 1.890 segundos ± 55,0. Em relação às primeira, quinta e décima sessões, o profissional apresentou o maior custo (66%), seguido da infraestrutura (22%), dos insumos (9%) e do laser, o qual apresentou o menor custo (2,8%). Conclusões: A fotobiomodulação sistêmica mostrou-se de baixo custo quando comparada a outras terapias. O laser apresentou o menor custo na composição geral.

Effect of Photo Biomodulation on Muscle Repair: a Literature Review / Efeito da Fotobiomodulação Sobre o Reparo Muscular: uma Revisão de Literatura

Abstract Muscle injuries are frequent, both in the practice of exercises and in the work environment, and after the injury, healing begins. The inflammatory phase of muscle healing is accompanied by an increase in the production of reactive oxygen species (ROS), and a reduction in the antioxidant activity of defense enzymes. This imbalance between both can generate oxidative stress, which can cause oxidative damage by directly affecting vital cellular constituents, such as lipids, proteins and DNA, in addition to interfering negatively in the muscle cells differentiation . Therefore, substances or therapies that stimulate antioxidant repair and defense are crucial to keep the levels of free radical production low, and to minimize factors that delay or prevent tissue recovery, among these therapies photo biomodulation has stood out. The objective of this literature review is to clarify the FBM effect on oxidative stress and muscle repair. Therefore, a search was carried out in the databases of Pubmed, Scielo, Lilacs and PEDro, using the keywords "Photo biomodulation", "low power laser", "muscle repair", "oxidative stress", and in English were "Photo biomodulation", "low level laser therapy", "muscle repair" and "oxidative stress". The texts that addressed the research topic, published between 2000 and 2020, were chosen. After analyzing the articles, it was possible to observe that photo biomodulation, despite presenting a great variety of parameters, moment of application and irradiation protocol found in the literature, shows beneficial results in the repair muscle and in the reduction of oxidative stress and fatigue markers. (AU)

Resumo Lesões musculares são frequentes, tanto na prática de exercícios como no ambiente de trabalho, sendo que após a lesão, inicia a cicatrização. A fase inflamatória da cicatrização muscular é acompanhada do aumento da produção de espécies reativas de oxigênio (ERO) e uma redução da atividade antioxidante das enzimas de defesa. Este desequilíbrio entre ambos pode gerar o estresse oxidativo, que leva a danos e atingi diretamente constituintes celulares vitais, como lipídios, proteínas e DNA, além de interferir negativamente na diferenciação das células musculares. Portanto, substâncias ou terapias que estimulem a reparação e a defesa antioxidante são cruciais para manter os níveis de produção de radicais livres baixos, e minimizar os fatores que atrasam ou impedem a recuperação do tecido, dentre estas terapias a fotobiomodulação tem se destacado. O objetivo da presente revisão de literatura é esclarecer o efeito da FBM sobre o estresse oxidativo e o reparo muscular. Sendo assim, realizou-se uma pesquisa nas bases de dados da Pubmed, Scielo, Lilacs e PEDro, utilizando as palavras-chave "Fotobiomodulação", "laser de baixa potência", "reparo muscular", "estresse oxidativo", e em inglês foram "photobiomodulation", "low level laser therapy", "muscle repair" e "oxidative stress". Foram escolhidos os textos que abordavam o tema da pesquisa, publicados entre 2000 e 2020. Analisando os artigos foi possível observar que a fotobiomodulação apesar de apresentar grande variedade de parâmetros, momento de aplicação e protocolo de irradiação encontrados na literatura, mostra resultados benéficos no reparo muscular e na diminuição de marcadores do estresse oxidativo e fadiga. (AU)

Low- level laser: cost of therapy fornipple trauma / Laser de baixa intensidade: custo da terapia no trauma mamilar

Abstract Objectives: to measure the micro-cost of local laser therapy (LL) and transcutaneous laser therapy application by Irradiation Laser Intravascular of Blood (ILIB) to treat nipple trauma and compare the most effective and efficient alternative treatment. Methods: a cross-sectional analytical and quantitative study with analysis on the micro absorption cost, implemented as a clipping, from a randomized clinical trial that used two types of laser therapy to treat nipple trauma due to breastfeeding. The sample consisted of 101 nipple lesions. Patients were randomized into three groups (Control - CG, Local Laser -LLG and ILIB-ILIBG). Materials used, direct labor (DL) and laser equipment were predictors of costs. The delta calculation (effect size) was the indicator for measuring effectiveness and efficiency. Results: after three sessions, the average final cost was R$ 40.04for CG, R$ 53.55for LLG and R$ 67.29for ILIBG. After three sessions of treatment, ILIBG showed a great reduction in the lesion area, but with a higher cost (p<0.05). Conclusions: ILIBG had a better effect on healing the nipple trauma when compared to CG and LLG, even though it is more expensive, it suggests a positive cost-benefit and the most effective and efficient alternative treatment.

Resumo Objetivos: mensurar o microcusteio da aplicação de Laserterapia Local (LL) e trans-cutânea por Irradiation Laser Intravascular of Blood (ILIB) no tratamento de traumas mamilares e comparar a alternativa de tratamento mais eficaz e eficiente. Métodos: estudo transversal analítico do tipo quantitativo com análise de microcusteio de procedimento por absorção, implementado como recorte, de um ensaio clínico rando-mizado que utilizou duas modalidades de laserterapia para tratamento de traumas mamilares ocasionados pela amamentação. A amostra foi composta de 101 lesões mamilares. As pacientes foram aleatorizadas em três grupos (Controle - GG, Laser Local - GLL e ILIB -GILIB). Foram preditores de custos os materiais consumidos, Mão de obra Direta (MoD) e o equipamentos de laser O cálculo Delta (tamanho do efeito) foi o indicador para a medida da eficácia e eficiência. Resultados: após três sessões, a média do custo final foi de R$ 40,04 para o GC, R$ 53,55 para o GLL e R$ 67,29 para o GILIB. Após três sessões de tratamento, GILIB apresentou maior redução da área da lesão, contudo custo mais elevado (p<0,05). Conclusão: o GILIB teve efeito melhor na cicatrização dos traumas mamilares quando comparado com o GC e GLL, mesmo sendo mais caro sugere um custo benefício positivo e a alternativa de tratamento mais eficaz eficiente.

Dysphonia, arterial hypertension, diabetes mellitus, thyroid diseases, and noise complaints as probable factors associated with hearing loss among teachers / Disfonia, hipertensão arterial, diabetes mellitus, doenças da tireoide e queixas de ruído como prováveis fatores associados a perda auditiva em professores

ABSTRACT Objective: to verify a possible association between hearing loss and dysphonia, arterial hypertension, diabetes mellitus, thyroid diseases, and noise complaints. Methods: a cross-sectional study involving 60 teachers, mean age 47.05 years. Pure-tone threshold audiometry was used to assess hearing, the voice questionnaire and voice acoustic evaluation were used for voice perception and quality, and the standardized questionnaire verified noise complaint and comorbidities. The statistical analysis was conducted with Mann-Whitney and Fisher's exact tests and multivariate linear regression. Results: there was a significant association between hearing loss and diabetes mellitus, hypertension, and thyroid disease (both p <0.0001), but there was no association between noise complaints and hearing loss in this population. The regression showed that dysphonia (p = 0.0311) and diabetes mellitus (p = 0.0302) are independent risk factors for hearing loss. A correlation was found between hearing loss and voice characteristics: roughness, breathiness, tension, and resonance. Conclusion: this study showed that hypertension and thyroid diseases are factors associated with hearing loss. In addition, dysphonia and diabetes mellitus are independent factors associated with hearing loss in teachers. These results show the need for policies aimed at promoting teachers' health.

RESUMO Objetivo: verificar possível associação da perda auditiva com disfonia, hipertensão arterial (HA), diabetes mellitus (DM), doenças da tireoide e queixas de ruído. Métodos: estudo transversal envolvendo 60 professores, média de idade de 47,05 anos. Foi avaliada a audição por meio da Audiometria tonal limiar, a percepção e qualidade vocal com o questionário vocal e a avaliação vocal acústica, enquanto a queixa de ruído e as comorbidades envolvidas foram investigadas com o questionário padronizado. A análise estatística utilizou os testes Ex-act de Mann Whitney, Fisher e regressão linear multivariada. Resultados: houve associação significante entre perda auditiva e DM, HA e doenças da tireoide (ambas p <0,0001), mas não foi encontrada associação entre queixa de ruído e perda auditiva nesta população. A regressão mostrou que as variáveis disfonia (p = 0,0311) e DM (p = 0,0302) são fatores de risco independentes para perda auditiva. Houve correlação entre perda auditiva e as características vocais rugosidade, soprosidade, tensão e ressonância. Conclusão: este estudo demostrou que HA e doenças da tireoide são fatores associados a perda auditiva, além disso a disfonia e DM se constituem em fatores associados independentes para a perda auditiva em professores. Estes resultados mostram a necessidade de políticas direcionadas a promoção da saúde do professor.

Kinesio taping use to reduce pain and edema after third molar extraction surgery: A randomized controlled split-mouth study.

OBJECTIVE: Evaluating Kinesio Taping (KT) use to reduce pain and edema in individuals subjected to surgical extraction of impacted mandibular third molars. MATERIALS AND METHODS: Thirteen individuals (5 men and 8 women, mean age: 23.25 years) were subjected to mutual extraction of two mandibular third molars based on the same surgical protocol and pharmacological approach. All individuals were subjected to kinesio taping application on one side of patients' face (test group - KT), in the immediate postoperative period. The other side of the face was not subjected to KT application, and it was used as control (No KT). An examiner assessed individuals' pain and edema based on the visual analog scale (VAS) and on the Todorovic-Markovic method, respectively, at the preoperative, immediate postoperative, and second and fifth postoperative days. Statistical analysis was based on the Scheirer-Ray-Hare test. RESULTS: Edema (48 h and 120 h after surgery) and pain intensity (24 h, 48 h and 120 h after surgery) were lower on the KT side (p < 0.05). Moreover, edema and pain intensity fully reduced on the KT side 120 h after surgery (p < 0.05). CONCLUSION: Kinesio taping adopted in the current study was effective in reducing edema and postoperative pain in patients subjected to oral surgery. CLINICAL RELEVANCE: KT enables patients to experience a more comfortable postoperative period and helps improving their quality of life.

Effects of low level laser therapy in cancer cells-a systematic review of the literature.

The aim of the present study was to conduct a systematic review regarding the use of photobiomodulation (PBM) therapy in tumoral cells, addressing the different types of lasers and parameters used. An electronic search was performed in PubMed/MEDLINE, Cochrane Library, and EMBASE databases. The inclusion criteria were being an in vitro study, with tumoral cells, and have at least one group of treatment with low-power laser and a control group (without treatment). Were excluded studies that used only non-carcinogenic cells, in vivo studies, studies that used high-power laser or the association with photosensitizers. The primary outcome evaluated was the cellular viability, and the secondary outcomes were the apoptosis rate and gene and inflammatory mediators' expression. Nineteen studies were identified among the lists of citations of studies that met the exclusion/inclusion criteria. There is a wide divergence regarding the wavelengths and doses used, as well as the type of laser, and each variation leads to different results, with some studies showing an increase in cell proliferation, while other studies showed a decrease. It is possible to suggest that PBM can be used in cancerous lesions in order to decrease the proliferation of these cells depending on the parameters used; however, the lack of standardization of laser irradiation protocols for in vitro investigations does not allow the establishment of ideal parameters for this purpose. Therefore, PBM should be used with caution in cancer patients until more studies are performed.

Effects of beta-alanine supplementation on muscle function during recovery from resistance exercise in young adults.

ß-Alanine supplementation has been shown to increase muscle carnosine levels and exercise performance. However, its effects on muscle recovery from resistance exercise (RE) remains unknown. The purpose of this study was to investigate the effects of ß-alanine supplementation on muscle function during recovery from a single session of high-intensity RE. Twenty-four untrained young adults (22.1 ± 4.6 years old) were assigned to one of two groups (N = 12 per group): a placebo-supplement group (4.8 g/day) or an ß-alanine-supplement group (4.8 g/day). The groups completed a single session of high-intensity RE after 28 days of supplementation and were then evaluated for muscle function on the three subsequent days (at 24, 48, and 72 h postexercise) to assess the time course of muscle recovery. The following indicators of muscle recovery were assessed: number of repetitions until failure, rating of perceived exertion, muscle soreness, and blood levels of creatine kinase (CK). Number of repetitions until failure increased from 24 to 48 h and 72 h of recovery (time P < 0.01), with no difference between groups. There was a significant increase in the rating of perceived exertion among the sets during the RE session (time P < 0.01), with no difference between the groups. No difference was observed over time and between groups in rating of perceived exertion in the functional tests during recovery period. Blood CK levels and muscle soreness increased at 24 h postexercise and then progressively declined at 48 and 72 h postexercise, respectively (time P < 0.05), with no difference between groups. In conclusion, our data indicate that ß-alanine supplementation does not improve muscle recovery following a high-intensity RE session in untrained young adults.

NEUROMUSCULAR ELECTRICAL STIMULATION OF MEDIUM AND LOW FREQUENCY ON THE QUADRICEPS FEMORIS.

OBJECTIVE: The purpose of this study was to investigate the effects of neuromuscular electrical stimulation (NMES) in different frequencies on the quadriceps femoris. A randomized, controlled, blind cross-sectional study. METHODS: Thirty subjects (12 men and 18 women), with an average age of 24.67 years, weight of 65.62 kg and height of 1.69 m were evaluated. Three random test conditions were applied: maximum voluntary isometric contraction (MVIC), maximum voluntary isometric contraction with medium frequency current (MVIC-MF) and maximum voluntary isometric contraction with low frequency current (MVIC-LF). Four MVICs were applied in each situation. The time between different isometric contraction types was 90 seconds while the time between the same conditions of contraction was 10 seconds. RESULTS: Two-way ANOVA test showed that MVIC-MF had higher values for peak torque than MVIC-LF (p=0.02). Significant statistical results were found when comparing MVIC-MF and MVIC (p=0.03), but not for MVIC and MVIC-LF (p=0.52). CONCLUSION: Maximum voluntary isometric contraction associated with medium-frequency electrical stimulation was more effective than other NMES conditions. Level of Evidence II, Therapeutic Studies - Investigation of treatment results.

OBJETIVO: A finalidade deste estudo foi investigar os efeitos da estimulação elétrica neuromuscular (EENM) em diferentes frequências sobre o músculo quadríceps femoral. Estudo randomizado, transversal, controlado e cego. MÉTODOS: Foram avaliados trinta indivíduos de ambos os sexos (12 homens e 18 mulheres) com média de idade de 24,67 anos, peso 65,62 kg e altura 1,69 m. Os indivíduos foram submetidos a três condições de testes randomizados: contração voluntária isométrica máxima (CVIM), contração voluntária isométrica máxima associada à corrente de média frequência (CVIMMF) e contração voluntária isométrica máxima associada à baixa frequência (CVIMBF), sendo realizadas quatro repetições de CVIM em cada situação. O tempo entre as diferentes condições de contrações isométricas foi de 90 segundos e o tempo entre as contrações isométricas das mesmas condições foi de 10 segundos. RESULTADOS: O teste ANOVA mostrou que a CVIMMF obteve valores de pico de torque maiores do que a CVIMBF (p = 0,02), com diferença significativa. Foram encontrados resultados com significância estatística ao comparar CVIMMF e CVIM (p = 0,03), mas não entre CVIM e CVIMBF (p = 0,52). CONCLUSÕES: A contração voluntária isométrica máxima associada a EENM de média frequência foi mais efetiva do que as outras situações de EENM. Nível de evidência II, Estudos Terapêuticos ­ Investigação dos resultados do tratamento.

Neuromuscular electrical stimulation of medium and low frequency on the quadriceps femoris / Estimulação elétrica neuromuscular de média e baixa frequência no músculo quadríceps femoral

ABSTRACT Objective: The purpose of this study was to investigate the effects of neuromuscular electrical stimulation (NMES) in different frequencies on the quadriceps femoris. A randomized, controlled, blind cross-sectional study. Methods: Thirty subjects (12 men and 18 women), with an average age of 24.67 years, weight of 65.62 kg and height of 1.69 m were evaluated. Three random test conditions were applied: maximum voluntary isometric contraction (MVIC), maximum voluntary isometric contraction with medium frequency current (MVIC-MF) and maximum voluntary isometric contraction with low frequency current (MVIC-LF). Four MVICs were applied in each situation. The time between different isometric contraction types was 90 seconds while the time between the same conditions of contraction was 10 seconds. Results: Two-way ANOVA test showed that MVIC-MF had higher values for peak torque than MVIC-LF (p=0.02). Significant statistical results were found when comparing MVIC-MF and MVIC (p=0.03), but not for MVIC and MVIC-LF (p=0.52). Conclusion: Maximum voluntary isometric contraction associated with medium-frequency electrical stimulation was more effective than other NMES conditions. Level of Evidence II, Therapeutic Studies - Investigation of treatment results.

RESUMO Objetivo: A finalidade deste estudo foi investigar os efeitos da estimulação elétrica neuromuscular (EENM) em diferentes frequências sobre o músculo quadríceps femoral. Estudo randomizado, transversal, controlado e cego. Métodos: Foram avaliados trinta indivíduos de ambos os sexos (12 homens e 18 mulheres) com média de idade de 24,67 anos, peso 65,62 kg e altura 1,69 m. Os indivíduos foram submetidos a três condições de testes randomizados: contração voluntária isométrica máxima (CVIM), contração voluntária isométrica máxima associada à corrente de média frequência (CVIMMF) e contração voluntária isométrica máxima associada à baixa frequência (CVIMBF), sendo realizadas quatro repetições de CVIM em cada situação. O tempo entre as diferentes condições de contrações isométricas foi de 90 segundos e o tempo entre as contrações isométricas das mesmas condições foi de 10 segundos. Resultados: O teste ANOVA mostrou que a CVIMMF obteve valores de pico de torque maiores do que a CVIMBF (p = 0,02), com diferença significativa. Foram encontrados resultados com significância estatística ao comparar CVIMMF e CVIM (p = 0,03), mas não entre CVIM e CVIMBF (p = 0,52). Conclusões: A contração voluntária isométrica máxima associada a EENM de média frequência foi mais efetiva do que as outras situações de EENM. Nível de evidência II, Estudos Terapêuticos - Investigação dos resultados do tratamento.

Atletas de taekwondo têm melhor controle postural do que atletas de handebol e futebol americano / Atletas de taekwondo tienen mejor control postural que atletas de handball y fútbol americano / Taekwondo athletes have better postural control than handball and american football athletes

RESUMO Introdução: O controle postural é um pré-requisito importante para o desempenho do atleta no esporte. Além disso, o sistema de controle postural contribui para a prevenção de lesões. Déficits nesse sistema podem levar a instabilidade corporal e sobrecarga das estruturas musculoesqueléticas, gerando disfunção e dor. Objetivos: A proposta deste estudo foi avaliar o controle postural em três diferentes modalidades esportivas: taekwondo, handebol e futebol americano. Métodos: Todos os atletas executaram o teste de equilíbrio unipodal sobre uma plataforma de força nos membros inferiores direito e esquerdo. Foram realizados três testes de trinta segundos cada, com os olhos abertos. A média dos três testes foi utilizada para mensurar os parâmetros de controle postural, centro de pressão e velocidade dos deslocamentos anteroposteriores e mediolaterais. Resultados: Diferenças significativas foram observadas entre os três grupos em todos os parâmetros analisados (P = <0,04). A análise post hoc revelou que os atletas de taekwondo tiveram melhor controle postural (P = < 0,035) dos membros inferiores em comparação com as outras duas modalidades. Não foram observadas diferenças significativas entre o handebol e o futebol americano. Conclusão: Os atletas do taekwondo têm melhor controle postural durante o teste de equilíbrio unipodal do que os atletas do handebol e do futebol americano.

ABSTRACT Introduction: Postural control is an important prerequisite for an athlete's performance in sport. In addition, the postural control system contributes to injury prevention. Deficits in this system can lead to body instability and overload of musculoskeletal structures generating dysfunction and pain. Objectives: The purpose of this study was to evaluate postural control in three different sports modalities: taekwondo, handball, and American football. Methods: All athletes performed a one-legged stance/balance test on a force platform in the right and left lower limbs. Three tests of thirty seconds each were performed with eyes open. The mean of the three tests was used to measure the parameters of postural control, pressure center and velocity of anteroposterior and mediolateral displacements. Results: Significant differences were observed among the three groups in all analyzed parameters (P=<0.04). Post-hoc analysis revealed that taekwondo athletes had better postural control (P=<0.035) of lower limbs compared to the other two modalities. There were no significant differences between handball and American football. Conclusion: Taekwondo athletes have better postural control during the one-legged stance/balance test than handball and American football athletes.

RESUMEN Introducción: El control postural es un prerrequisito importante para el desempeño del atleta en el deporte. Además, el sistema de control postural contribuye a la prevención de lesiones. Los déficit en este sistema pueden llevar a la inestabilidad corporal y sobrecarga de las estructuras musculoesqueléticas, generando disfunción y dolor. Objetivos: La propuesta de este estudio fue evaluar el control postural en tres diferentes modalidades deportivas: taekwondo, handball y fútbol americano. Métodos: Todos los atletas ejecutaron la prueba de equilibrio unipodal sobre una plataforma de fuerza en los miembros inferiores derecho e izquierdo. Se realizaron tres pruebas de treinta segundos para cada una, con los ojos abiertos. El promedio de las tres pruebas se utilizó para medir los parámetros de control postural, centro de presión y velocidad de los desplazamientos anteroposteriores y mediolaterales. Resultados: Diferencias significativas se observaron entre los tres grupos en todos los parámetros analizados (P = < 0,04). El análisis post hoc reveló que los atletas de taekwondo tuvieron mejor control postural (P = <0,035) de las extremidades inferiores en comparación con las otras dos modalidades. No se observaron diferencias significativas entre el handball y el fútbol americano. Conclusión: Los atletas del taekwondo tienen mejor control postural durante la prueba de equilibrio unipodal que los atletas del handball y del fútbol americano.

ANALYSIS OF FUNCTIONAL CAPACITY IN INDIVIDUALS WITH AND WITHOUT CHRONIC LOWER BACK PAIN.

OBJECTIVE: The objective of this study was to analyze the functional status of adult and older adult individuals with lower back pain . METHODS: Eighty-three individuals were recruited, 42 older adults (20 with lower back pain and 22 control group) and 41 younger adults (21 with lower back pain and 20 control group). Functional capacity was assessed using the following tests: Timed Up and Go (TUG), Five Times Sit-to-Stand (FTSTS), six-minute walking test (SMWT), and sitting-rising test (SRT) . RESULTS: In the younger adults, there was no difference in functional capacity between the groups (p>0.05). On the other hand, when statistical analysis was adjusted using body mass index (BMI) as a covariate, the lower back pain group performed more poorly on the SRT (p<0.004). Furthermore, poorer physical capacity was seen in the older adults with back pain via the SRT test (p=0.001), and when the BMI was adjusted, a statistical difference was seen in the SRT as well as the SMWT (p<0.05) . CONCLUSION: Older individuals with lower back pain have poorer physical performance, and the sitting-rising test is the most discerning for assessment of functional status in individuals with lower back pain. Level of Evidence III, Retrospective Comparative Study.

OBJETIVO: Avaliar a funcionalidade de indivíduos idosos e jovens com dor lombar crônica. MÉTODO: Foram avaliados 83 indivíduos, sendo 42 idosos (Grupo controle: 22 e Grupo dor lombar: 20) e 41 jovens (Grupo controle: 20 e Grupo dor lombar: 21). Para avaliação da capacidade funcional, foram utilizados os testes Timed Up and Go (TUG), sentar e levantar de uma cadeira 5 vezes (Five Times Sit-to-Stand - FTSTS), o teste da caminhada dos seis minutos (TC6min) e sentar e levantar do solo (TSL). RESULTADOS: Não houve diferença na capacidade funcional dos jovens entre os grupos (p > 0,05). Contudo, quando a análise é ajustada para a covariável "IMC", o Grupo dor lombar apresentou pior desempenho no teste TSL (p = 0,004). No grupo de idosos, foi observado pior desempenho no Grupo dor lombar no teste TSL (p = 0,001). Após o ajuste pela variável "IMC", observou-se diferença estatística nas condições do teste TSL, assim como no TC6min (p < 0,05) . CONCLUSÃO: Idosos com dor lombar crônica apresentaram pior desempenho funcional e o teste TSL foi o mais discriminativo para avaliação funcional de indivíduos com dor lombar crônica. Nível de Evidência III, Estudo Retrospectivo Comparativo.

Analysis of functional capacity in individuals with and without chronic lower back pain / Análise da capacidade funcional em indivíduos com e sem dor lombar crônica

ABSTRACT Objective: The objective of this study was to analyze the functional status of adult and older adult individuals with lower back pain . Methods: Eighty-three individuals were recruited, 42 older adults (20 with lower back pain and 22 control group) and 41 younger adults (21 with lower back pain and 20 control group). Functional capacity was assessed using the following tests: Timed Up and Go (TUG), Five Times Sit-to-Stand (FTSTS), six-minute walking test (SMWT), and sitting-rising test (SRT) . Results: In the younger adults, there was no difference in functional capacity between the groups (p>0.05). On the other hand, when statistical analysis was adjusted using body mass index (BMI) as a covariate, the lower back pain group performed more poorly on the SRT (p<0.004). Furthermore, poorer physical capacity was seen in the older adults with back pain via the SRT test (p=0.001), and when the BMI was adjusted, a statistical difference was seen in the SRT as well as the SMWT (p<0.05) . Conclusion: Older individuals with lower back pain have poorer physical performance, and the sitting-rising test is the most discerning for assessment of functional status in individuals with lower back pain. Level of Evidence III, Retrospective Comparative Study.

RESUMO Objetivo: Avaliar a funcionalidade de indivíduos idosos e jovens com dor lombar crônica. Método: Foram avaliados 83 indivíduos, sendo 42 idosos (Grupo controle: 22 e Grupo dor lombar: 20) e 41 jovens (Grupo controle: 20 e Grupo dor lombar: 21). Para avaliação da capacidade funcional, foram utilizados os testes Timed Up and Go (TUG), sentar e levantar de uma cadeira 5 vezes (Five Times Sit-to-Stand - FTSTS), o teste da caminhada dos seis minutos (TC6min) e sentar e levantar do solo (TSL). Resultados: Não houve diferença na capacidade funcional dos jovens entre os grupos (p > 0,05). Contudo, quando a análise é ajustada para a covariável "IMC", o Grupo dor lombar apresentou pior desempenho no teste TSL (p = 0,004). No grupo de idosos, foi observado pior desempenho no Grupo dor lombar no teste TSL (p = 0,001). Após o ajuste pela variável "IMC", observou-se diferença estatística nas condições do teste TSL, assim como no TC6min (p < 0,05) . Conclusão: Idosos com dor lombar crônica apresentaram pior desempenho funcional e o teste TSL foi o mais discriminativo para avaliação funcional de indivíduos com dor lombar crônica. Nível de Evidência III, Estudo Retrospectivo Comparativo.