Non-Pharmacological Interventions in Osteosarcopenia: A Systematic Review
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NON-PHARMACOLOGICAL INTERVENTIONS IN OSTEOSARCOPENIA: A SYSTEMATIC REVIEW R. ATLIHAN1,2, B. KIRK1,2, G. DUQUE1,2 1. Department of Medicine-Western Health, Melbourne Medical School, University of Melbourne, St Albans, Melbourne, VIC, Australia; 2. Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, Melbourne, VIC, Australia. Corresponding author: Prof. Gustavo Duque, MD, Ph.D., FRACP, FGSA, Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, 176 Furlong Road, St. Albans, VIC, Australia 3121, Tel: +61 3 8395 8121, E-mail: [email protected]
Abstract: Background: Osteosarcopenia is a geriatric syndrome defined by the concomitant presence of osteopenia/osteoporosis (loss of bone mineral density (BMD)) and sarcopenia (loss of muscle mass and/or function), which increases the risk of falls, fractures, and premature mortality. Objective: To examine the efficacy of non-pharmacological (exercise and/or nutritional) interventions on musculoskeletal measures and outcomes in osteosarcopenic adults by reviewing findings from randomized controlled trials (RCTs). Methods: This review was registered at PROSPERO (registration number: CRD42020179292) and conducted in accordance with the PRISMA guidelines. Electronic databases were searched for RCTs assessing the effect of at least one non-pharmacological intervention (any form of exercise and/or supplementation with protein, vitamin D, calcium or creatine) on any musculoskeletal measure/outcome of interest (BMD, bone strength/turnover, muscle mass and strength, physical performance, falls/fractures) in adults with osteosarcopenia as defined by any proposed criteria. Results: Two RCTs (of n=106 older osteosarcopenic adults (≥65 years)) assessing the effects of progressive resistance training (RT) (via resistance bands or machines; 2-3 times/week; ~60 minutes in duration) were eligible for inclusion. The two RCTs demonstrated moderate quality evidence that RT increases muscle mass, strength, and quality, with changes in strength and quality occurring before muscle mass (12 vs 28 weeks). There was low quality evidence that RT increases lumbar spine BMD and maintains total hip BMD when performed for 12 and 18 months, respectively, and moderate quality evidence that RT has no effect on markers of bone turnover or physical performance. No major adverse effects were recorded in either of the RCTs. There were no eligible RCTs examining the impact of nutritional interventions. Conclusion: Chronic RT is safe and effective at potentiating gains in muscle mass, strength, and quality, and increasing or maintaining BMD in older osteosarcopenic adults. No RCT has examined the effects of protein, vitamin D, calcium, or creatine against a control/placebo in this high-risk population. Key words: Bone, muscle, nutrition, osteosarcopenia, resistance training.
Introduction
shown to improve BMD and muscle strength and reduce falls and fractures in community-dwelling adults deficient
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