Relationships among body weight, joint moments generated during functional activities, and hip bone mass in older adults.

Clinical Biomechanics
Man-Ying WangGeorge J Salem

Abstract

To investigate the relationships among hip joint moments produced during functional activities and hip bone mass in sedentary older adults. Eight male and eight female older adults (70-85 yr) performed functional activities including walking, chair sit-stand-sit, and stair stepping at a self-selected pace while instrumented for biomechanical analysis. Bone mass at proximal femur, femoral neck, and greater trochanter were measured by dual-energy X-ray absorptiometry. Three-dimensional hip moments were obtained using a six-camera motion analysis system, force platforms, and inverse dynamics techniques. Pearson's correlation coefficients were employed to assess the relationships among hip bone mass, height, weight, age, and joint moments. Stepwise regression analyses were performed to determine the factors that significantly predicted bone mass using all significant variables identified in the correlation analysis. Hip bone mass was not significantly correlated with moments during activities in men. Conversely, in women bone mass at all sites were significantly correlated with weight, moments generated with stepping, and moments generated with walking (p<0.05 to p<0.001). Regression analysis results further indicated that the over...Continue Reading

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Citations

Apr 12, 2014·Journal of Neuroengineering and Rehabilitation·Abeer M Eldeeb, Amr S Khodair
Jul 31, 2013·Climacteric : the Journal of the International Menopause Society·F R PaolilloV S Bagnato
Mar 23, 2011·Journal of Bodywork and Movement Therapies·S N OmkarDebarun Das
Nov 22, 2008·Journal of Biomechanics·Katherine A BoyerThomas P Andriacchi
Jun 9, 2016·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Stephan BrandThomas Hassel
Nov 18, 2011·Menopause : the Journal of the North American Menopause Society·Fernanda Rossi PaolilloVanderlei Salvador Bagnato

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