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Multicomponent training program with weight-bearing exercises elicits favorable bone density, muscle strength, and balance adaptations in older women.
Calcif Tissue Int 2011; 88(2):117-29CT

Abstract

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.

Authors+Show Affiliations

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.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21113584

Citation

Marques, Elisa A., et al. "Multicomponent Training Program With Weight-bearing Exercises Elicits Favorable Bone Density, Muscle Strength, and Balance Adaptations in Older Women." Calcified Tissue International, vol. 88, no. 2, 2011, pp. 117-29.
Marques EA, Mota J, Machado L, et al. Multicomponent training program with weight-bearing exercises elicits favorable bone density, muscle strength, and balance adaptations in older women. Calcif Tissue Int. 2011;88(2):117-29.
Marques, E. A., Mota, J., Machado, L., Sousa, F., Coelho, M., Moreira, P., & Carvalho, J. (2011). Multicomponent training program with weight-bearing exercises elicits favorable bone density, muscle strength, and balance adaptations in older women. Calcified Tissue International, 88(2), pp. 117-29. doi:10.1007/s00223-010-9437-1.
Marques EA, et al. Multicomponent Training Program With Weight-bearing Exercises Elicits Favorable Bone Density, Muscle Strength, and Balance Adaptations in Older Women. Calcif Tissue Int. 2011;88(2):117-29. PubMed PMID: 21113584.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Multicomponent training program with weight-bearing exercises elicits favorable bone density, muscle strength, and balance adaptations in older women. AU - Marques,Elisa A, AU - Mota,Jorge, AU - Machado,Leandro, AU - Sousa,Filipa, AU - Coelho,Margarida, AU - Moreira,Pedro, AU - Carvalho,Joana, Y1 - 2010/11/27/ PY - 2010/06/21/received PY - 2010/10/31/accepted PY - 2010/11/30/entrez PY - 2010/11/30/pubmed PY - 2011/6/23/medline SP - 117 EP - 29 JF - Calcified tissue international JO - Calcif. Tissue Int. VL - 88 IS - 2 N2 - 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. SN - 1432-0827 UR - https://www.unboundmedicine.com/medline/citation/21113584/Multicomponent_training_program_with_weight_bearing_exercises_elicits_favorable_bone_density_muscle_strength_and_balance_adaptations_in_older_women_ L2 - https://dx.doi.org/10.1007/s00223-010-9437-1 DB - PRIME DP - Unbound Medicine ER -