| Multicomponent training program with weight-bearing exercises elicits favorable bone density, muscle strength, and balance adaptations in older women. | |
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MedLine Citation:
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PMID: 21113584 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Physical exercise is advised as a preventive and therapeutic strategy against aging-induced bone weakness. In this study we examined the effects of 8-month multicomponent training with weight-bearing exercises on different risk factors of falling, including muscle strength, balance, agility, and bone mineral density (BMD) in older women. Participants were randomly assigned to either an exercise-training group (ET, n = 30) or a control group (CON, n = 30). Twenty-seven subjects in the ET group and 22 in the CON group completed the study. Training was performed twice a week and was designed to load bones with intermittent and multidirectional compressive forces and to improve physical function. Outcome measures included lumbar spine and proximal femoral BMD (by dual X-ray absorptiometry), muscle strength, balance, handgrip strength, walking performance, fat mass, and anthropometric data. Potential confounding variables included dietary intake, accelerometer-based physical activity, and molecularly defined lactase nonpersistence. After 8 months, the ET group decreased percent fat mass and improved handgrip strength, postural sway, strength on knee flexion at 180°/s, and BMD at the femoral neck (+2.8%). Both groups decreased waist circumference and improved dynamic balance, chair stand performance, strength on knee extension for the right leg at 180°/s, and knee flexion for both legs at 60°/s. No associations were found between lactase nonpersistence and BMD changes. Data suggest that 8 months of moderate-impact weight-bearing and multicomponent exercises reduces the potential risk factors for falls and related fractures in older women. |
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Authors:
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Elisa A Marques; Jorge Mota; Leandro Machado; Filipa Sousa; Margarida Coelho; Pedro Moreira; Joana Carvalho |
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Publication Detail:
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Type: Journal Article Date: 2010-11-27 |
Journal Detail:
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Title: Calcified tissue international Volume: 88 ISSN: 1432-0827 ISO Abbreviation: Calcif. Tissue Int. Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-01-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7905481 Medline TA: Calcif Tissue Int Country: United States |
Other Details:
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Languages: eng Pagination: 117-29 Citation Subset: IM |
Affiliation:
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Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal, elisaamarques@msn.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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