Faculty of Physical Culture, Palacký University Olomouc, Olomouc 771 11, Czech Republic.
Faculty of Science, Palacký University Olomouc, Olomouc 771 11, Czech Republic.
Int J Environ Res Public Health. 2018 Jul 9;15(7):1444. doi: 10.3390/ijerph15071444.
This study is the first to use compositional data analysis to investigate movement behaviors of elderly women and their relationships with fat mass percentage (FM%). The focus of the study is on the associations of time reallocations from sedentary behavior (SB) to light physical activity (LIPA) or moderate-to-vigorous physical activity (MVPA) with adiposity. Over 400 older adult women were recruited as part of the cross-sectionally conducted measurements of older adults aged 60+ in Central European countries. An accelerometer was used to assess daily movement behaviors. Body mass index (BMI) and fat mass percentage (FM%) were assessed as adiposity indicators using InBody 720 MFBIA. Using LS-regression, we found positive relationships of BMI and FM% with SB (relative to remaining movement behaviors) ( < 0.001 for both), while their relationship with MVPA (relative to remaining movement behaviors) were negative ( < 0.001 for both). The estimated BMI and FM% associated with a 30-min SB-to-MVPA reallocation were reduced by 1.5 kg/m² and 2.2 percentage points, respectively, whereas they were not reduced significantly with the reallocation of 30 min from SB to LIPA. The findings highlight that SB and MVPA, but not LIPA, are significantly associated with adiposity in elderly women. The reallocation of time from SB to MVPA could be advocated in weight loss interventions in older women.
本研究首次使用成分数据分析方法来调查老年女性的运动行为及其与体脂肪百分比（FM%）的关系。研究的重点是久坐行为（SB）向低强度体力活动（LIPA）或中高强度体力活动（MVPA）的时间重新分配与肥胖的关联。超过 400 名老年女性作为在中欧国家进行的 60 岁以上老年人横断面测量的一部分被招募。使用加速度计评估日常运动行为。身体质量指数（BMI）和体脂肪百分比（FM%）作为肥胖指标，使用 InBody 720 MFBIA 进行评估。使用最小二乘回归，我们发现 BMI 和 FM%与 SB（相对于其余运动行为）呈正相关（两者均<0.001），而与 MVPA（相对于其余运动行为）呈负相关（两者均<0.001）。与 30 分钟 SB 到 MVPA 的重新分配相关的估计 BMI 和 FM%分别减少了 1.5 公斤/平方米和 2.2 个百分点，而与 30 分钟 SB 到 LIPA 的重新分配相比，它们并没有显著减少。研究结果表明，SB 和 MVPA 与老年女性的肥胖显著相关，而 LIPA 则不相关。在老年女性的减肥干预中，提倡将时间从 SB 重新分配到 MVPA。
