Relationships between bone mineral density, body composition, and isokinetic strength in postmenopausal women

The increase in body fat mass (BFM) and the loss of lean body mass (LBM) or muscle strength with age affects bone mineral (BMD). These factors increase the prevalence and incidence of obesity and sarcopenia, which have unclear effects on bone mineral density. The purpose of this study was to determi...

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Bibliographic Details
Published in:Bone Reports 2020-06, Vol.12, p.100255-100255, Article 100255
Main Authors: Kapuš, Ondřej, Gába, Aleš, Lehnert, Michal
Format: Article
Language:English
Subjects:
Body composition
Bone mineral density
Isokinetic
Muscle strength
Postmenopausal
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Summary:The increase in body fat mass (BFM) and the loss of lean body mass (LBM) or muscle strength with age affects bone mineral (BMD). These factors increase the prevalence and incidence of obesity and sarcopenia, which have unclear effects on bone mineral density. The purpose of this study was to determine how the above selected factors affect BMD. A cross-sectional study was conducted involving 58 women (aged 62.1 ± 4.8 years). Total body, left proximal femur, lumbar spine BMD, and body composition parameters were measured with dual-energy x-ray absorptiometry. Isokinetic flexion and extension strength of the dominant leg were measured at 60 deg./s. Grip strength was measured with the dominant upper extremity. To determine the volume of physical activity (PA), the PA level was monitored for seven consecutive days using an ActiGraph model GT1M accelerometer. BFM was positively associated with BMD of the proximal femur (β = 0.31; P 
ISSN:2352-1872
2352-1872
DOI:10.1016/j.bonr.2020.100255