Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.
School of Nursing, College of Nursing, Taipei Medical University, Taipei 10675, Taiwan.
Exp Gerontol. 2021 May;147:111272. doi: 10.1016/j.exger.2021.111272. Epub 2021 Feb 4.
Osteosarcopenic adiposity (OSA), which is described as the concurrent occurrence of osteopenia, sarcopenia, and adiposity, can lead to frailty and increase the risk of physical disability in elderly women. Progressive elastic band resistance exercise training (peRET) is considered a safe and feasible exercise intervention for elderly women with sarcopenic obesity. This study investigated the effects of elastic band resistance exercise on the physical capacity and body composition of elderly women with osteosarcopenic adiposity.
A total of 15 and 12 women were randomly assigned to the experimental (12 weeks of resistance exercise) and control groups (no exercise intervention), respectively. Lean mass (measured using a dual-energy X-ray absorptiometer) and physical capacity assessments (such as timed up and go test and single leg stance tests) were conducted at baseline, 12 weeks (end of intervention), and 6 months after the intervention. Outcome differences within the study and control groups were analyzed using repeated-measures analysis of variance with a post-hoc test. The Mann-Whitney U test was used to examine differences between groups at different time points.
After the intervention, no body composition changes in muscle mass and fat were observed between the study and control groups. Moreover, muscle mass and fat body composition did not significantly differ at different time points. The bone density was higher in the study group, with a higher T-score than their baseline values, but did not significantly differ compared with the control group. The study group exhibited more improved physical function than the control group, but the effect did not last after 6 months of follow-up.
A 12-week progressive elastic band resistance training program effectively increased the physical capacity and improved the bone density; however, without persistent training, the positive effect diminished at 6-month follow-up.
骨质疏松-少肌型肥胖症（OSA）是指骨质疏松症、少肌症和肥胖症同时发生，可导致虚弱，并增加老年女性发生身体残疾的风险。渐进式弹性带阻力训练（peRET）被认为是一种安全且可行的针对肥胖型少肌症老年女性的运动干预措施。本研究旨在探讨弹性带阻力训练对骨质疏松-少肌型肥胖老年女性身体机能和身体成分的影响。
共有 15 名和 12 名女性被随机分配到实验组（12 周的阻力训练）和对照组（无运动干预），分别在基线、12 周（干预结束时）和干预后 6 个月时进行瘦体重（使用双能 X 射线吸收仪测量）和身体机能评估（如计时起立行走测试和单腿站立测试）。采用重复测量方差分析和事后检验分析研究组和对照组内的结果差异。采用 Mann-Whitney U 检验分析不同时间点两组间的差异。
干预后，研究组和对照组的肌肉质量和脂肪的身体成分均未发生变化。此外，不同时间点肌肉质量和脂肪身体成分无显著差异。与对照组相比，研究组的骨密度更高，T 评分高于基线值，但无显著差异。研究组的身体机能改善程度高于对照组，但在 6 个月随访后，这种效果并未持续。
为期 12 周的渐进式弹性带阻力训练方案可有效提高身体机能，改善骨密度；但在停止训练后，6 个月随访时，其积极效果消失。
