Associations of Mutually Exclusive Categories of Physical Activity and Sedentary Behavior with Body Composition and Fall Risk in Older Women: A Cross-Sectional Study.
Associations of Mutually Exclusive Categories of Physical Activity and Sedentary Behavior with Body Composition and Fall Risk in Older Women: A Cross-Sectional Study.
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DOI：
10.3390/ijerph20043595
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发表时间：
2023-02-17
影响因子：
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通讯作者：
Stout, Jeffrey R
中科院分区：
文献类型：
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作者：
Choudhury, Renoa;Park, Joon-Hyuk;Banarjee, Chitra;Thiamwong, Ladda;Xie, Rui;Stout, Jeffrey R
体力活动（PA）和久坐行为（SB）对健康的个体效应是公认的。然而，人们对这些行为的不同组合与老年人身体成分和跌倒风险的相关程度知之甚少。这项横断面研究探讨了PA和SB相互排斥的类别与老年女性身体成分和跌倒风险的关系。在94名社区老年妇女中评估了加速度计测量的PA、身体成分和跌倒风险（静态和动态平衡）参数。参与者被分为四组：活动-低久坐、活动-高久坐、非活动-低久坐和非活动-高久坐（活动：≥150分钟/周中度至剧烈PA（MVPA）;低久坐：SB和轻度PA比率的最低三分位数）。与不活动高久坐组相比，活动低久坐组的身体成分和动态平衡结果更好（体脂质量指数（BFMI）：β =-4.37，p = 0.002;骨骼肌质量指数（SMI）：β = 1.23，p = 0.017;非典型瘦体重指数（ALMI）：β = 1.89，p = 0.003;非活动性低久坐组（AFMI）：β =-2.19，p = 0.003;从坐到站：β = 4.52，p = 0.014）（BFMI：β = −3.14，p = 0.007; SMI：β = 1.05，p = 0.014; AFMI：β = −1.74，p = 0.005，坐立：β = 3.28，p = 0.034）组。我们的研究结果表明，PA计划侧重于同时实现足够的MVPA和减少SB可能会促进健康的身体组成，并降低老年人跌倒的风险。
The individual effects of physical activity (PA) and sedentary behavior (SB) on health are well-recognized. However, little is known about the extent to which different combinations of these behaviors are associated with body composition and fall risk in older adults. This cross-sectional study examined the associations of mutually exclusive categories of PA and SB with body composition and fall risk in older women. Accelerometer-measured PA, body composition and fall risk (static and dynamic balance) parameters were assessed among 94 community-dwelling older women. The participants were categorized into four groups: active-low sedentary, active-high sedentary, inactive-low sedentary and inactive-high sedentary (active: ≥150 min/week moderate-to-vigorous PA (MVPA); low sedentary: lowest tertile of SB and light PA ratio). Compared to the inactive-high sedentary group, more favorable body composition and dynamic balance results were found in the active-low sedentary (body fat mass index (BFMI): β = −4.37, p = 0.002; skeletal muscle mass index (SMI): β = 1.23, p = 0.017; appendicular lean mass index (ALMI): β = 1.89, p = 0.003; appendicular fat mass index (AFMI): β = −2.19, p = 0.003; sit-to-stand: β = 4.52, p = 0.014) and inactive-low sedentary (BFMI: β = −3.14, p = 0.007; SMI: β = 1.05, p = 0.014; AFMI: β = −1.74, p = 0.005, sit-to-stand: β = 3.28, p = 0.034) groups. Our results suggest that PA programs focusing on concurrently achieving sufficient MVPA and reduced SB might promote a healthy body composition and reduced fall risk among older adults.