Assaf Buch1, Ofer Kis2, Eli Carmeli3, Lital Keinan-Boker4, Yitshal Berner5, Yael Barer6, Gabi Shefer2, Yonit Marcus7, Naftali Stern7. 1. Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center, Tel-Aviv, Israel; The Sackler Faculty of Medicine Tel-Aviv University, Israel; Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel. Electronic address: buchasaf@gmail.com. 2. Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center, Tel-Aviv, Israel. 3. Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center, Tel-Aviv, Israel; The Department of Physical Therapy, University of Haifa, Haifa, Israel. 4. School of Public Health, University of Haifa, Haifa, Israel; Israel Center for Disease Control, Israel Ministry of Health, Ramat Gan, Israel. 5. The Sackler Faculty of Medicine Tel-Aviv University, Israel; Geriatric Medicine, Meir Medical Center, Kfar Saba, Israel. 6. The Sackler Faculty of Medicine Tel-Aviv University, Israel. 7. Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv Sourasky Medical Center, Tel-Aviv, Israel; The Sackler Faculty of Medicine Tel-Aviv University, Israel.
Abstract
BACKGROUND: Physical exercise, particularly resistance training (RT), is proven treatment to reduce the accelerated decline in muscle strength exhibited by older adults, but its effect is hindered by low adherence rate, even under well-structured programs. OBJECTIVE AND DATA SOURCES: We investigated the efficacy of circuit resistance training (CRT) on muscle strength, lean mass and aerobic capacity in older adults based on report in MEDLINE, EMBASE, ClinicalTrials.gov and Cochrane electronic (through 8/2016). STUDY ELIGIBILITY CRITERIA: middle and older aged men and/or women who followed a structured program, assigned to CRT. STUDY APPRAISAL AND SYNTHESIS METHODS: Out of 237 originally identified articles, 10 articles were included with a total of 362 patients with mean: age -64.5±7.4 years; 3±1.15 sessions/week; session duration 41.8±15.9min. RESULTS: Upper body strength modestly increased, by 1.14kg (95% CI; 0.28-2.00), whereas larger increment was seen in lower body strength (11.99; 2.92-21.06). Higher program volume (>24 sessions) positively influenced upper body strength and aerobic capacity. LIMITATIONS: (1) variability in the studies' validity; (2) relatively low number of studies. CONCLUSION: CRT is a valid alternative to conventional RT. Its shorter duration and lower intensity relative to traditional RT, may increase adherence to training in older adults.
BACKGROUND: Physical exercise, particularly resistance training (RT), is proven treatment to reduce the accelerated decline in muscle strength exhibited by older adults, but its effect is hindered by low adherence rate, even under well-structured programs. OBJECTIVE AND DATA SOURCES: We investigated the efficacy of circuit resistance training (CRT) on muscle strength, lean mass and aerobic capacity in older adults based on report in MEDLINE, EMBASE, ClinicalTrials.gov and Cochrane electronic (through 8/2016). STUDY ELIGIBILITY CRITERIA: middle and older aged men and/or women who followed a structured program, assigned to CRT. STUDY APPRAISAL AND SYNTHESIS METHODS: Out of 237 originally identified articles, 10 articles were included with a total of 362 patients with mean: age -64.5±7.4 years; 3±1.15 sessions/week; session duration 41.8±15.9min. RESULTS: Upper body strength modestly increased, by 1.14kg (95% CI; 0.28-2.00), whereas larger increment was seen in lower body strength (11.99; 2.92-21.06). Higher program volume (>24 sessions) positively influenced upper body strength and aerobic capacity. LIMITATIONS: (1) variability in the studies' validity; (2) relatively low number of studies. CONCLUSION: CRT is a valid alternative to conventional RT. Its shorter duration and lower intensity relative to traditional RT, may increase adherence to training in older adults.
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