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J Phys Ther Sci. 2016 Jul;28(7):2105-9. doi: 10.1589/jpts.28.2105. Epub 2016 Jul 29.

Relationship of body composition, knee extensor strength, and standing balance to lumbar bone mineral density in postmenopausal females.

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1
Department of Physical Therapy, College of Health Science, Sahmyook University, Republic of Korea.

Abstract

[Purpose] This study aimed to investigate correlations between lumbar bone mineral density (BMD) and general characteristics of postmenopausal females, including body composition, knee extensor strength, standing balance, and femur BMD. [Subjects and Methods] A total of 40 postmenopausal females (55.6 ± 4.6 years) who were caregivers or guardians of patients in the K hospital were included in the study. The weight, height, body composition, left and right knee extensor strength, standing balance, femur BMD, and lumbar BMD measurements of the subjects were obtained. [Results] The effect of measurement variables on lumbar BMD was examined. Increases in age and menopausal duration were observed to significantly increase lumbar BMD, whereas an increase in height was found to significantly decrease lumbar BMD. An increase in soft lean mass, skeletal muscle mass, fat-free mass, and femur BMD was also associated with significantly decreased lumbar BMD. [Conclusion] Age, menopausal duration, soft lean mass, skeletal muscle mass, and fat-free mass were factors that decreased lumbar BMD in menopausal females. This study is expected to provide basic knowledge for osteoporosis prevention and treatment programs for postmenopausal females.

KEYWORDS:

Body composition; Bone mineral density; Postmenopausal females

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