Singh Harshvardhan, Moore Bethany A, Rathore Roshita, Bemben Michael G, Bemben Debra A
J Aging Phys Act. 2022 Feb 1;30(1):82-88. doi: 10.1123/japa.2020-0200. Epub 2021 Aug 13.
The authors examined sex-specific relationships between fat mass index (FMI), android/gynoid (A/G) fat ratio, relative skeletal muscle mass index, and Bone-Specific Physical Activity Questionnaire derived bone-loading scores (BLSs) in middle-aged and older adults (men, n = 27; women, n = 33; age = 55-75 years). The FMI, A/G fat ratio, and relative skeletal muscle mass index were estimated by dual-energy X-ray absorptiometry. The Bone-Specific Physical Activity Questionnaire was used to assess: (a) BLSpast (age 1 until 12 months before the study visit), (b) BLScurrent (last 12 months), and (c) BLStotal (average of [a] and [b]) scores. Separate multiple linear regression analysis of (a) age, FMI, and relative skeletal muscle mass index and (b) age, height, and A/G fat ratio versus BLS revealed that FMI and A/G fat ratio were negatively associated with BLSpast and BLStotal (p < .05) in women only. Adiposity and, specifically, central adiposity is negatively related to bone-loading physical activity in middle-aged and older women.
作者研究了中年及老年成年人（男性，n = 27；女性，n = 33；年龄 = 55 - 75岁）中脂肪量指数（FMI）、腹部/臀部（A/G）脂肪比率、相对骨骼肌质量指数与骨特异性体力活动问卷得出的骨负荷评分（BLSs）之间的性别特异性关系。FMI、A/G脂肪比率和相对骨骼肌质量指数通过双能X线吸收法进行估算。骨特异性体力活动问卷用于评估：（a）过去骨负荷评分（BLSpast，研究访视前1岁至12个月）、（b）当前骨负荷评分（BLScurrent，过去12个月）以及（c）总骨负荷评分（BLStotal，[a]和[b]的平均值）。分别对（a）年龄FMI和相对骨骼肌质量指数以及（b）年龄、身高和A/G脂肪比率与BLS进行多元线性回归分析，结果显示仅在女性中FMI和A/G脂肪比率与过去骨负荷评分（BLSpast）和总骨负荷评分（BLStotal）呈负相关（p <.05）。在中年及老年女性中，肥胖尤其是中心性肥胖与骨负荷体力活动呈负相关。
