Nutrition assistance improves skeletal muscle function and performance in community-dwelling older women / Assistência nutricional melhora o desempenho muscular esquelético de mulheres idosas residentes na comunidade

To analyze the effects of nutritional assistance focusing on protein intake (in the individual's usual diet) in relation to muscle mass, and the muscle strength and functional performance of community-dwelling older women. Methods: This is a non-randomized controlled clinical trial. Forty-three community-dwelling older women, who were allocated to the Control Group (CG; n = 20) or the Nutrition Group (NG; n = 23). The NG received individualized nutrition assistance and participated in group activities that focused on dietary protein intake once a week for 12 weeks. Main outcome measures: protein and energy intake; handgrip strength (HGS); gait speed (GS); quadriceps cross-sectional area (CSA); and intramuscular non-contractile tissue (IMNCT). The Student's t-test for independent samples, the Mann-Whitney U test, and a mixed model ANOVA with two factors (group and time) were adopted, followed by a post hoc Bonferroni test. A Spearman's correlation test was performed on tests for HGS; GS; CSA; IMNCT; age; and protein intake adjusted for weight (g/kg) (p ≤ 0.050). Results: Participants in the NG showed higher CSA values than those in the CG (p < 0.001). NG participants also had higher HGS (p < 0.001) and GS (p = 0.037) when compared to pre-intervention. Correlations were observed between IMNCT and protein intake adjusted for weight (g/kg) (r = -0.517; p = 0.020); HGS, and CSA (r = 0.827; p = 0.000); and CSA and age (r = -0.520, p = 0.009).

Analisar os efeitos da assistência nutricional com foco na ingestão proteica (na dieta habitual do indivíduo) em relação a massa muscular, força muscular e desempenho funcional de idosas de uma comunidade. Métodos: Trata-se um ensaio clínico controlado não randomizado. Quarenta e três idosas da comunidade foram alocadas no Grupo Controle (GC; n = 20) ou no Grupo Nutrição (GN; n = 23). O GN recebeu atendimento nutricional individualizado e participou de atividades grupais com foco na ingestão proteica da dieta uma vez por semana, durante 12 semanas. Principais medidas de resultado: ingestão de proteína e energia; força de preensão palmar (FPP); teste de velocidade da marcha (TVM); área de secção transversa do quadríceps (ASTq); e tecido intramuscular não contrátil (TIMNC). Utilizou-se o teste t de Student para amostras independentes, o teste U de Mann-Whitney e um modelo misto de análise de variância (ANOVA) com dois fatores (grupo e tempo), seguido de teste post hoc de Bonferroni. Um teste de correlação de Spearman foi realizado para FPP; TVM; ASTq; TIMNC; idade; e ingestão proteica ajustada para peso (g/kg) (p ≤ 0,050). Resultados: Os participantes do GN apresentaram valores de ASTq superiores aos do GC (p < 0,001). Os participantes do GN também exibiram maior FPP (p < 0,001) e GS (p = 0,037) quando comparados à pré-intervenção. Foram observadas correlações entre TIMNC e ingestão proteica ajustada para peso (g/kg) (r = -0,517; p = 0,020); HGS e ASTq (r = 0,827; p = 0,000); e ASTq e idade (r = -0,520, p = 0,009).

Does Physical Dance Training with Virtual Games Change Muscle Quality of Community-Dwelling Older Women?

Objective: The aim of the study is to analyze the effects of physical dance training with a virtual game on muscle quality (MQ) of community-dwelling older women. Materials and Methods: In total, 46 older women participated in the study and were assigned to either a control group (CG, n = 25, 71 ± 5 years) or training group (TG, n = 21, 69 ± 4 years). The following assessments were performed at baseline and after 12 weeks: quadriceps, ankle plantar flexor, and dorsiflexor isokinetic peak torque (PT) (Biodex System 4 Dynamometer); quadriceps cross-sectional area (CSA) measured using magnetic resonance imaging; intramuscular noncontractile tissue (IMNCT) (Image-Pro Plus 4.5.0.29 for Windows); and MQ (ratio of quadriceps PT to CSA). Each week for 12 weeks, the TG undertook three 40-minute sessions of physical training with the "Dance Central" game for Xbox 360® with Kinect, while the CG was instructed to maintain usual activities of daily living. Results: The TG increased quadriceps eccentric PT at 60°/s (P = 0.04) and ankle plantar flexor concentric PT at 60°/s (P = 0.02) when compared with the CG. No significant difference in quadriceps CSA, IMNCT, and MQ was observed. Conclusion: Physical dance training with virtual games can increase quadriceps and ankle plantar flexor strength without changing IMNCT and MQ of community-dwelling older women. Trial number: RBR-8xkwyp (ensaiosclinicos.gov.br-Brazilian Clinical Trials Registry).

Effects of virtual dance exercise on skeletal muscle architecture and function of community dwelling older women.

OBJECTIVES: The aim of this study was to analyze the effects of virtual dance exercise on skeletal muscle architecture and function in community-dwelling older women. METHODS: Forty-two moderately active older women participated in this study and chose to join either the control group (CG; n=20; 70.3 ± 5.6 years) or exercise group (EG; n=22; 69.3 ± 3.7 years). Participants in the CG maintained their lifestyle and those in the EG performed group dance exercise using Dance Central game for Xbox 360® and Kinect for 40 min, 3 times/week, for 12 weeks. The primary outcomes were: ankle plantar flexion and dorsiflexion peak torque (PT), medial gastrocnemius muscle thickness (MT), fascicle length (FL), and pennation angle (PA). The secondary outcomes were: lower limbs range of motion (ROM), calf circumference (CC), 6 m customary gait speed, and handgrip strength. Data were analyzed using an ANOVA mixed model test (p<0.05). RESULTS: EG participants improved plantar flexion PT at 60°/s (16.3%; p<0.01), MT (8.7%; p<0.01) and ankle dorsiflexion ROM (5.1%; p=0.04) when compared to baseline, and exhibited enhanced CC values compared to CG (1.7%; p=0.03). CONCLUSIONS: Virtual dance exercise can be recommended to increase muscle mass. Moreover, ankle plantar flexion strength and dorsiflexion ROM gains may contribute to improve functionality and fall avoidance in moderately active older women.

Effects of Dance Exergaming on Depressive Symptoms, Fear of Falling, and Musculoskeletal Function in Fallers and Nonfallers Community-Dwelling Older Women.

The aim of this study was to evaluate the effects of a pop dance exergaming protocol on fall risk factors-depressive symptoms, fear of falling, and musculoskeletal function-in community-dwelling older female fallers and nonfallers. There were 47 community-dwelling older women assigned to the intervention group (IG) [fallers (n = 10, 69.8 ± 4.3 years); nonfallers (n = 12, 68.9 ± 3.3 years)] and the control group (CG) [fallers (n = 12, 73.6 ± 5.4 years); nonfallers (n = 13, 68.7 ± 4.8 years)]. The CG maintained their lifestyle and the IG performed a videogame dance training three times per week for 12 weeks. The Dance Central game for Xbox 360® and Kinect motion sensor were used. The primary outcomes were geriatric depressive symptoms, fear of falling, and concentric and eccentric isokinetic peak torque (PT) of quadriceps and hamstrings. Secondary outcomes included cross-sectional area of quadriceps and hamstring muscles, functionality (Timed Up and Go test, gait speed, the Five Times Sit-to-Stand test), and a fall circumstances and outcomes recording. The depressive symptoms decreased in the Intervention Fallers Group. The eccentric hamstrings PT at 180°/s increased in the Intervention Nonfallers Group. There were no significant differences between groups for the other variables analyzed. The training attendance was 83% for the Intervention Fallers Group and 88% for the Intervention Nonfallers Group. Dance exergaming can be indicated to decrease depressive symptoms in fallers and increase the PT in nonfallers among community-dwelling older women.

Supervised dance intervention based on video game choreography increases quadriceps cross sectional area and peak of torque in community dwelling older women

Abstract AIMS the purpose of this study was to assess the effects of a supervised dance intervention based on video game choreography on isokinetic concentric and eccentric knee peak of torque (PT), quadriceps and hamstrings cross sectional area (CSA) and functionality in community-dwelling older women. METHODS Forty-seven older women were allocated in Control Group (CG, n=25) and Intervention Group (IG, n=22). The IG performed dance based on video game choreography (Dance Central, XBOX 360®, Kinect), during 12 weeks, ~40 minutes, 3x/week, without foam (1-6week) and with foam and visual disturbances (7-12 week). The pretest-training-posttest assessments included: isokinetic concentric and eccentric knee PT and CSA (Magnetic resonance imaging) of quadriceps and hamstrings and functional tests. RESULTS The light-to-moderate-intensity 12-weeks training increased 8.5% the eccentric PT of quadriceps at 60°/s (p=0.04) and 1.3% quadriceps CSA (p=0.02). CONCLUSIONS These findings suggest that dance training based on video game choreography can enhance PT and induce hypertrophy in community-dwelling older women.

Effects of exergame training on the health promotion of young adults / Efeitos do treinamento com exergames na promoção da saúde de adultos jovens

Abstract Introduction: Training with exergames has been prescribed for health problems prevention, however, little is known about its influence on the self-perception of the physical condition and on the physical and motor skills (PMS). Objective: To investigate the effects of exergames (EXG) on the self-perception of the physical condition, level of physical activity and PMS in healthy young adults. Methods: Forty young adults, of both genders, were allocated by convenience into Control Group (CG, n = 20, 21.85 ± 0.62 years old), the individuals did not perform the physical training with exergames, and Intervention Group (IG, n = 20, 23.10 ± 0.61 years old), the subjects practiced exergames training (XBOX360 Kinect ®), in pairs, twice a week, for 12 weeks. Anthropometric measurements; self-perceived physical condition (International Fitness Scale-IFIS); International Physical Activity Questionnaire (IPAQ) and PMS (flexibility; abdominal endurance; upper limb strength and endurance, agility and velocity) were evaluated. Results: The IG presented better self-perception of the physical condition; increased physical activity level in the leisure domain and enhanced PMS after 12 weeks of intervention, compared to the CG. Conclusion: The EXG was efficient to improve skeletal muscle function, to contribute to physical exercise adherence and to promote physical health in active young adults.

Resumo Introdução: O treinamento com exergames tem sido prescrito para prevenção em saúde, no entanto, pouco se sabe sobre sua influência na autopercepção da condição física e nas capacidades físico-motoras. Objetivo: Investigar os efeitos dos exergames (EXG) sobre a autopercepção da condição física, nível de atividade física (AF) e capacidades físico-motoras (CFM) de adultos jovens saudáveis. Métodos: Quarenta adultos jovens, de ambos os sexos, foram distribuídos por conveniência em Grupo Controle (GC, n = 20, 21,85 ± 0,62 anos) que não realizou treinamento físico e Grupo Intervenção (GI, n = 20, 23,10 ± 0,61 anos) que realizou treinamento físico com videogame (XBOX360 Kinect®), em duplas, 2 vezes por semana, durante 12 semanas. A avaliação consistiu na verificação das medidas antropométricas; auto-percepção da condição física (International Fitness Scale-IFIS); nível de Atividade Física (AF, questionário IPAQ) e CFM (flexibilidade, resistência abdominal, força e resistência dos membros superiores agilidade e velocidade). Resultados: O GI apresentou melhora na autopercepção da condição física; aumento no nível de AF no domínio lazer e melhora nas CFM após 12 semanas de intervenção, em comparação com o grupo controle. Conclusão: O EXG foi eficaz para incrementar a função musculoesquelética, favorecer a aderência ao exercício físico e promover a saúde física em adultos jovens ativos.

Efeitos do treinamento com Kinect Sports e Kinect Adventures na resistência da musculatura lombopélvica de adultos jovens saudáveis: ensaio clínico não randomizado / Los efectos del entrenamiento con Kinect Sports y Kinect Adventures en la resistencia de la musculatura lumbar y pélvica de adultos jóvenes saludables: estudio clínico no aleatorio / Effects of training with Kinect Sports and Kinect Adventures in the resistance of lumbar-pelvic muscles of healthy young adults: non-randomized clinical trial

RESUMO O treinamento com exergames (EXG) tem sido utilizado como técnica para prevenção em saúde, embora pouco se saiba sobre sua influência na resistência da musculatura da região lombopélvica. Assim, analisou-se os efeitos dos jogos Kinect Sports ® e Kinect Adventures ® sobre a resistência muscular da região lombopélvica de adultos jovens saudáveis. Tivemos 40 participantes (26 mulheres e 14 homens, com idade entre 18 e 30 anos) divididos por conveniência em grupo controle (GC, n=20) e grupo intervenção (GI, n=20), e submetidos a avaliações da resistência da musculatura flexora, extensora e flexora lateral do tronco, em três períodos: inicial (T0), depois de cinco semanas (T5) e depois de 12 semanas (T12). Somente o GI realizou treinamento com videogame, jogos Kinect Sports ® e Kinect Adventures ® (Xbox 360 Kinect®), em duplas, duas vezes por semana, durante 12 semanas. Para analisar as diferenças entre os grupos foi utilizado o teste de ANOVA mista com medidas repetidas design 2 (grupo de tratamento: GC vs. GI) x3 (testes do complexo lombopélvico: T0 vs. T5 vs. T12) (p<0,05). Resultados: O GI apresentou aumento significativo da resistência de extensores de tronco e flexores laterais de tronco (F2,76=3.947, p=0,03; F2,76=3.763, p=0,02, respectivamente) depois de 12 semanas de intervenção com o videogame, em comparação ao GC. Concluiu-se que o treinamento com EXG (Xbox 360 Kinect Sports ® e Kinect Adventures ®) incrementou a resistência da musculatura da região lombopélvica de adultos jovens saudáveis. Este protocolo pode ser considerado na prevenção de desordens musculoesqueléticas da região lombar.

RESUMEN El entrenamiento con los videojuegos activos viene siendo empleado como técnica para promover la salud, pero todavía poco se sabe acerca de su influencia en la resistencia de la musculatura lumbar y pélvica. En este trabajo se analizaron los efectos de los juegos Kinect Sports® y Kinect Adventures® en la resistencia de la musculatura lumbar y pélvica de adultos jóvenes saludables. Se dividieron 40 participantes (26 mujeres y 14 varones, con edades entre 18 y 30 años) por conveniencia en el grupo control (GC, n=20) y en el grupo de intervención (GI, n=20), y se les sometieron al análisis de resistencia del músculo flexor, extensor y flexor lateral del tronco, en tres periodos: inicial (T0), después de cinco semanas (T5) y después de 12 semanas (T12). El G1 solo realizó entrenamiento con los videojuegos Kinect Sports® y Kinect Adventures® (Xbox 360 Kinect®), en parejas, dos veces semanales, durante 12 semanas. En el análisis de las diferencias entre grupos se empleó la prueba ANOVA mixta con repetidas medidas design 2 (grupo de entrenamiento: GC vs. GI) x3 (pruebas del complejo lumbar y pélvico: T0 vs. T5 vs. T12) (p<0,05). Comparado al GC, el GI presentó un aumento significativo en la resistencia de los extensores del tronco y en los flexores laterales del tronco (F2,76=3.947, p=0,03; F2,76=3.763, p=0,02, respectivamente) tras las 12 semanas de entrenamiento con los videojuegos. Se concluye que el entrenamiento con videojuegos activos, Xbox 360 Kinect Sports® y Kinect Adventures®, mejoró la resistencia de la musculatura lumbar y pélvica de los participantes, y puede ser empleado en la prevención de trastornos musculoesqueléticos lumbares.

ABSTRACT Exergames training (EXG) has been used as a technique for health prevention, however, little is known about its influence on the endurance of lumbar-pelvic muscles. The effects of Kinect Sports ® and Kinect Adventures ® on the endurance of lumbar-pelvic muscles in healthy young adults were analyzed. Forty participants (26 women and 14 men, from 18 to 30 years old) were sorted by convenience into a control group (CG, n = 20) and an intervention group (IG, n=20). The muscles of the trunk (flexor, extensor and lateral flexor) were assessed in three periods: before the intervention (T0), after five weeks (T5) and after 12 weeks (T12). Only the IG underwent training with Kinect Sports ® and Kinect Adventures ® (XBOX360 Kinect®), in pairs, twice a week, during 12 weeks. To analyze the differences between groups, mixed ANOVA test was used with repeated measures design 2 (treatment group: CG vs. IG) x3 (lumbar-pelvic complex tests: T0 vs. T5 vs. T12) (p<0.05). The IG showed a significant increase in the endurance of trunk extensors and lateral flexors (F2,76=3.947, p=0.03; F2,76=3.763, p=0.02), respectively, after 12 weeks of intervention, compared to the CG. It was concluded that EXG training (XBOX360 Kinect Sports® and Kinect Adventures®) improved the resistance of the lumbar-pelvic muscles of healthy young adults. This protocol may be considered an instrument for the prevention of musculoskeletal disorders in the lumbar region.

Indicators of sarcopenia and their relation to intrinsic and extrinsic factors relating to falls among active elderly women / Indicadores de sarcopenia e sua relação com fatores intrínsecos e extrínsecos às quedas em idosas ativas

Abstract Introduction: Musculoskeletal aging can impair functional performance increasing the risk of falls. Objective: To analyze the correlation between sarcopenia and the intrinsic and extrinsic factors involved in falls among community-dwelling elderly women. Method: A cross-sectional study evaluated the number of falls of 85 active community-dwelling elderly women in the previous year and then divided them into two groups: non-fallers (n=61) and fallers (n=24). The sarcopenia indicators assessed were gait speed (GS, 10m); handgrip strength (HS); calf circumference; appendicular muscle mass index (DXA). Intrinsic factors: Mental State Examination (MSE); visual acuity; depression (GDS-30); hip , knee (Lequesne) and ankle/foot (FAOS) pain/function; vestibular function (Fukuda test); functional mobility and risk of falls (TUG); power (sitting and standing five times); gait (treadmill); fear of falling (FES-I-Brazil). Extrinsic factors: risk/security features in homes. The independent t test was applied for comparisons between groups and the Pearson and Spearman tests were used for correlations (p<0.05). Results: There was a moderate correlation between HS and GS in non-fallers (r=0.47; p=0.001) and fallers (r= 0.54; p=0.03). There was a moderate negative correlation (r= -0.52; p=0.03) between FES-I-Brazil and gait cadence in fallers. There was a greater presence of stairs (p=0.001) and throw rugs (p=0.03) in the homes of fallers than non-fallers. Conclusion: The elderly women were not sarcopenic. Elderly fallers presented inferior gait cadence and a greater fear of falling. Residential risks were determining factors for falls, and were more relevant than intrinsic factors in the evaluation of falls among active community-dwelling elders.

Resumo Introdução: O envelhecimento musculoesquelético pode prejudicar o desempenho funcional aumentando o risco de quedas. Objetivo: Analisar a correlação entre indicadores de sarcopenia e fatores extrínsecos e intrínsecos às quedas em idosas da comunidade. Método: Estudo transversal, 85 idosas ativas da comunidade foram questionadas sobre número de quedas no último ano e divididas em dois grupos: não caidoras (n=61) e caidoras (n=24). Indicadores de sarcopenia verificados: velocidade da marcha (VM, 10m); força de preensão manual (FPM); circunferência panturrilha; índice de massa muscular apendicular (DXA). Fatores intrínsecos: estado mental (MEEM); acuidade visual; depressão (GDS-30); dor/função quadril, joelho (Lequesne) e tornozelo/pé (FAOS); função vestibular (teste Fukuda); mobilidade funcional e risco de quedas (TUG); potência (teste sentar e levantar cinco vezes); marcha (esteira); medo de cair (FES-I-Brasil). Fatores extrínsecos: riscos/recursos de segurança nas residências. Teste t independente para comparações entre grupos e correlação de Pearson e Spearman (p<0,05). Resultados: Correlação moderada entre FPM e VM para não caidoras (r=0,47; p=0,001) e caidoras (r=0,54; p=0,03). Correlação moderada negativa (r=-0,52; p=0,03) entre medo de cair e cadência da marcha de caidoras. Maior presença de escadas (p=0,001); tapetes soltos (p=0,03) nas residências das caidoras comparados com não caidoras. Conclusão: As idosas não apresentaram sarcopenia. Idosas caidoras apresentaram pior cadência da marcha e maior medo de cair. Riscos residenciais foram determinantes para cair, indicando maior relevância do que fatores intrínsecos na avaliação de quedas em idosas ativas da comunidade.

Effects of muscular endurance training on musculoskeletal disorders in teachers / Efeitos do treinamento de resistência muscular nos sintomas osteomusculares de professoras

AbstractIntroduction Physical exercise is indicated to reduce the incidence of musculoskeletal symptoms in teachers.Objective To evaluate the effects of muscular endurance training on muscle strength and musculoskeletal symptoms related to the lower limbs of public elementary school teachers.Materials and methods Thirty-one female teachers were divided into two groups: control (CG, n = 15) and muscular endurance training (TG, n = 16). The training consisted of two sets of 15 repetitions of exercises for quadriceps and hamstring muscle groups, twice a week, for 7 weeks, which were conducted with 50% of 10 repetition maximum(10RM) (first to fourth week) and 60% of 10 RM (fifth to seventh week). Musculoskeletal symptoms (Nordic Musculoskeletal Questionnaire), isometric peak torque (Load cell) and muscle strength (10RM) were assessed before and after intervention. ANOVA for repeated measures and Tukey post hoc were used to analyse strength and peak torque of quadriceps and hamstrings and Chi-square goodness-of-fit test were used to analyse the frequency of occurrence of osteomuscular symptoms.Results The highest incidence of symptoms was found in the lumbar region in both groups. Training caused increased muscle strength of the quadriceps and hamstrings, but there were no significant differences in either the peak torque in the quadriceps and hamstrings or in the reduction of musculoskeletal symptoms.Conclusion The exercise program performed in this study increased the dynamic strength in the TG in relation to the CG, but did not alter the incidence of symptoms in the lumbar region and lower limbs in neither of the groups. Thus, results suggest that the duration of intervention may not have been enough to increase peak torque and decrease musculoskeletal symptoms.

ResumoIntrodução A prática de exercício físico é indicada para reduzir a incidência de sintomas osteomusculares em professores.Objetivo Avaliar os efeitos do treinamento de resistência muscular na força muscular e nos sintomas osteomusculares relacionados aos membros inferiores de professoras do ensino público fundamental.Materiais e métodos Trinta e uma professoras foram divididas em dois grupos: controle (GC, n = 15) e treinamento de resistência muscular (GT, n = 16). O treinamento consistiu em 2 séries de 15 repetições de exercícios para quadríceps e isquiotibiais, 2 vezes por semana, durante 7 semanas, sendo realizados com 50% de 10 Repetições Máximas (10RM) (1a-4a semanas) e com 60% de 10RM (5a-7a semanas). Os sintomas osteomusculares (Questionário Nórdico), o pico de torque isométrico (célula de carga) e a força muscular (10 RM) foram avaliados antes e após a intervenção. Para a análise estatística foi realizado ANOVA para medidas repetidas, com acompanhamento do teste de Tukey post hoc para força e pico torque de quadriceps e isquiotibiais e o teste de Qui quadrado com bondade de ajuste para a frequência dos sintomas osteomusculares.Resultados A maior incidência de sintomas foi na região lombar em ambos os grupos. O treinamento promoveu aumento da força muscular de quadríceps e isquiotibiais, porém não houve diferenças significativas tanto no pico de torque isométrico de quadríceps e isquiotibiais quanto na diminuição dos sintomas osteomusculares.Conclusão O programa de exercícios realizado aumentou a força muscular dinâmica no GT em relação ao GC, porém não alterou a incidência dos sintomas na região lombar e nos membros inferiores em ambos os grupos. Assim, sugere-se que a duração da intervenção pode não ter sido suficiente para gerar o aumento de torque e reduzir os sintomas osteomusculares.

Effects of exercise on pain of musculoskeletal disorders: a systematic review.

Work related musculoskeletal disorders are a major concern for public health and pain is the most important symptom. The aim of this study was to verify the effectiveness of workplace exercises to control musculoskeletal pain and its frequency, intensity, duration and type of exercises used. The search was conducted systematically in Medline, Pubmed, Embase, Bireme, Web of Knowledge and Pedro databases. The keywords "workplace", "exercise" and "musculoskeletal disorders" were used combined. Randomized control trials which performed worksite exercises were selected and the studies were assessed by their methodological soundness. Ten articles were selected which investigated the resistance training, cardio respiratory exercises, Pilates, stretching, postural orientation and exercises for relaxation. Workplace resistance training performed at 70-85% RM, three times a week for 20 minutes promotes reduction of the pain in shoulders, wrists, cervical, dorsal and lumbar spine. However, there is no consensus regarding the total duration of the intervention for the decrease of musculoskeletal pain in these regions. Level of Evidence I, Therapeutic Studies Investigating the Results of Treatment, Systematic Review of RCTs (Randomized and Controlled Clinical Studies).

Effects of exercise on pain of musculoskeletal disorders: a systematic review

As desordens musculoesqueléticas relacionadas ao trabalho representamum grande problema de saúde pública mundial, sendo ador o principal sintoma. Os objetivos deste estudo foram: verificar aefetividade de programas de exercícios realizados no ambiente ocupacionalno controle da dor musculoesquelética e qual a frequência,intensidade, duração e os tipos de exercício realizados. Buscaram-seartigos, de forma sistemática nas bases de dados Medline, Pubmed,Embase, Bireme, Web of Knowledge e Pedro. Os descritores “workplace”,“exercise” e “musculoskeletal disorders” foram utilizados de formacombinada. Foram selecionados os ensaios clínicos randomizadosque realizaram o exercício físico no ambiente ocupacional e os estudosforam avaliados quanto à qualidade metodológica. Dez estudos foramselecionados, os quais investigaram os efeitos dos exercícios de treinamentode força, condicionamento cardiorrespiratório, Pilates, exercíciosde alongamento, orientações posturais e exercícios de relaxamento.Foi observada melhora da dor em ombros, punhos e coluna cervical,dorsal e lombar com exercícios de força muscular e sobrecarga entre70 a 85% da RM realizados no local de trabalho, três vezes por semanadurante 20 minutos. Porém, não houve consenso com relação à duraçãototal da intervenção para a melhora da dor musculoesqueléticanestas regiões. Nível de Evidência I, Estudos Terapêuticos - Investigaçãodos Resultados do Tratamento, Revisão Sistemática deECRC (Estudos Clínicos Randomizados e Controlados)...

Work related musculoskeletal disorders are a major concernfor public health and pain is the most importantsymptom. The aim of this study was to verify the effectivenessof workplace exercises to control musculoskeletalpain and its frequency, intensity, duration and type ofexercises used. The search was conducted systematicallyin Medline, Pubmed, Embase, Bireme, Web of Knowledgeand Pedro databases. The keywords “workplace”, “exercise”and “musculoskeletal disorders” were used combined.Randomized control trials which performed worksiteexercises were selected and the studies were assessedby their methodological soundness. Ten articles were selectedwhich investigated the resistance training, cardiorespiratory exercises, Pilates, stretching, postural orientationand exercises for relaxation. Workplace resistancetraining performed at 70-85% RM, three times a week for20 minutes promotes reduction of the pain in shoulders,wrists, cervical, dorsal and lumbar spine. However, thereis no consensus regarding the total duration of the interventionfor the decrease of musculoskeletal pain in theseregions. Level of Evidence I, Therapeutic Studies Investigatingthe Results of Treatment, Systematic Reviewof RCTs (Randomized and Controlled Clinical Studies)...