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Effects of shortening and lengthening resistance exercise with low-intensity on physical fitness and muscular function in senior adults / Efeitos de exercícios resistivos de encurtamento e alongamento, em baixa intensidade, sobre condicionamento e função muscular em adultos sênior
Hiruma, Eisuke; Katamoto, Shizuo; Naito, Hisashi.
  • Hiruma, Eisuke; Teikyo University. Faculty of Medical Technology. Department of Sport and Medical Science. Tokyo. JP
  • Katamoto, Shizuo; Juntendo University. Graduate School of Health and Sports Science. Chiba. JP
  • Naito, Hisashi; Juntendo University. Graduate School of Health and Sports Science. Chiba. JP
MedicalExpress (São Paulo, Online) ; 2(1)Jan.-Feb. 2015. tab, graf
Article in English | LILACS | ID: lil-777596
ABSTRACT
OBJECTIVE: To identify effects of shortening and lengthening low-intensity resistance exercise together with aerobic exercise on physical fitness and muscular strength in senior adults. METHOD: Seventeen males (58-72yrs) and sixteen females (58-68yrs) participated in this study: seven male and six female as control subjects, ten male and ten female as exercise subjects: these subjects completed an 8-week training program (two times/week) consisting of 15 minutes of aerobike exercise at 50% of VO2max and six shortening-lengthening resistance exercises (3 exercises for upper body and 3 exercises for lower body). The subjects exercised resistance training (5 sec for shortening, 5 sec for lengthening) at 50% of one repetition maximum. Primary outcome measures included physical fitness tests (grip strength, sit-ups, sit-and-reach, 6 minutes of walking, single-leg balance test with open eyes), timed up-and-go test (UP&GO), and one repetition maximum of the same six exercises. This study examined joint angle of knee flexion and elbow flexion, visual analog scale, and muscular strength test to identify delayed onset muscle soreness. RESULTS: The resting blood pressures in both exercising groups were significantly decreased after 16 sessions of exercise intervention (p < 0.05). The training group significantly increased muscular strength and improved physical fitness, UP&GO, and one repetition maximum of 6 resistance exercises (p < 0.05). The combined exercise did not induce delayed onset muscle soreness. CONCLUSION: The present study showed that the combined shortening and lengthening resistance training with aerobic exercise in senior male and female adults was effective in decreasing blood pressure and increasing muscular strength and physical fitness.
RESUMO
OBJETIVO: Identificar os efeitos de encurtamento e alongamento através de exercício resistivo de baixa intensidade, juntamente com exercício aeróbico sobre a aptidão física e força muscular em idosos. MÉTODO: Dezessete homens (58-72 anos) e dezesseis mulheres (58-68 anos) participaram deste estudo: 7 homens e 6 mulheres como controles, 10 homens e 10 mulheres submetidos aos exercícios: um programa de treinamento bissemanal de 8 semanas, consistindo em dez minutos de aerobike a 50% do VO2max e seis exercícios de alongamento/encurtamento (três para membros superiores e três para membros inferiores). Cada exercido foi repetido quinze vezes (50% de Uma-Repetição-Máxima - 1RM) com 5 seg para encurtamento e 5 seg para alongamento). Foram medidos: força de preensão, sit-ups, sentar-e-alcançar, 6 minutos de caminhada, teste de equilíbrio de single-leg com os olhos abertos), teste up-and-go (UP & GO), 1RM dos mesmos seis exercícios, ângulo articular de flexão do joelho e flexão de cotovelo, escala analógica visual, e teste de força muscular para identificar dor muscular tardia. RESULTADOS: A pressão arterial em repouso do grupo exercício apresentou diminuição significativa após as 16 sessões de exercício. O grupo de treinamento aumentou significativamente a força muscular com melhoria da aptidão física, UP & GO, e uma repetição máxima de 6 exercícios de resistência. O exercício combinado não induziu dor muscular tardia. CONCLUSÃO: O presente estudo mostrou que o encurtamento/alongamento combinado com o exercício aeróbico em adultos idosos do sexo masculino e feminino foi eficaz para a diminuição da pressão arterial e aumento de força muscular e aptidão física.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Blood Pressure / Exercise / Physical Fitness / Muscle Strength / Myalgia Limits: Aged / Humans Language: English Journal: MedicalExpress (São Paulo, Online) Journal subject: Medicine Year: 2015 Type: Article Affiliation country: Japan Institution/Affiliation country: Juntendo University/JP / Teikyo University/JP

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Full text: Available Index: LILACS (Americas) Main subject: Blood Pressure / Exercise / Physical Fitness / Muscle Strength / Myalgia Limits: Aged / Humans Language: English Journal: MedicalExpress (São Paulo, Online) Journal subject: Medicine Year: 2015 Type: Article Affiliation country: Japan Institution/Affiliation country: Juntendo University/JP / Teikyo University/JP