Objectively Measured Physical Activity Levels and Associated Factors in Older US Women During the COVID-19 Pandemic: Cross-sectional Study.
Objectively Measured Physical Activity Levels and Associated Factors in Older US Women During the COVID-19 Pandemic: Cross-sectional Study.
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DOI：
10.2196/38172
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发表时间：
2022-08-22
期刊：
影响因子：
4.9
通讯作者：
Stout, Jeffrey R.
中科院分区：
文献类型：
--
作者：
Choudhury, Renoa;Park, Joon-Hyuk;Thiamwong, Ladda;Xie, Rui;Stout, Jeffrey R.
关键词：
身体活动（PA）对于缓解60岁或以上女性与衰老相关的生理和功能衰退至关重要。然而，关于COVID-19大流行期间老年女性的PA行为的客观评估及其与社会人口统计学、健康和身体功能以及COVID-19相关因素的关系，人们知之甚少。本研究旨在检查在大流行的第二年期间生活在物理距离指导方针下的美国老年妇女中客观测量的PA水平和相关因素。在这项横断面研究中，我们在2021年2月至8月期间使用腕戴式ActiGraph GT 9 X加速度计收集了94名年龄在60岁至96岁之间（平均年龄75.1岁，SD 7.3）的社区居住老年女性的自由生活PA数据。我们检查了他们每天花费在久坐行为（SB），轻强度体力活动（LPA）和中等强度体力活动（MVPA）上的时间是否因社会人口特征，健康和身体功能以及COVID-19相关因素而异。平均而言，参与者在SB中积累了12.4（SD 1.9）小时/天，在LPA中积累了218.6（SD 64.3）分钟/天，在MVPA中积累了42.4（SD 31.0）分钟/天，与之前发表的COVID-19前美国老年女性的标准相比，PA水平总体上有所降低。在年龄≥80岁的参与者中，久坐时间比60-79岁的参与者高7.5%（P=.003），LPA和MVPA花费的时间分别比60-79岁的参与者低13.3%（P=.03）和44.9%（P<.001）。在那些自测健康评分较高（MVPA：P=.001，SB：P=.04）和对跌倒的恐惧较低（FOF; MVPA：P=.003，SB：P=.04）的人中观察到更多的MVPA参与和较少的久坐生活方式。在30秒的坐-站（STS）测试中，参与者的姿势表现与更多的SB（P=.01）和更少的LPA（P=.04）和MVPA（P=.001）时间独立相关。此外，体弱和体弱前期参与者的久坐时间比健康对照组高5.0%（P= 0.03）。在大流行期间，老年妇女醒着的大部分时间都是久坐不动的，而LPA占其日常PA的比例更大。因此，用LPA（而不是MVPA）取代SB可能为老年女性提供更可行的PA目标，特别是那些年龄≥80岁或身体功能下降的女性。此外，有针对性的干预措施可能有利于促进那些独居，体弱或体弱，老年FOF高的人积极的生活方式。RR2-10.2196/27381
Physical activity (PA) is vital for attenuating the aging-related physiological and functional declines in women aged 60 years or above. However, little is known about the objectively assessed PA behavior in older women during the COVID-19 pandemic and its association with sociodemographics, health and physical function, and COVID-19 related factors. This study aims to examine the objectively measured PA levels and associated factors among older US women who were living under the physical distancing guidelines during the second year of the pandemic. In this cross-sectional study, we collected free-living PA data from 94 community-dwelling older women aged between 60 and 96 years (mean age 75.1 years, SD 7.3) using wrist-worn ActiGraph GT9X accelerometers between February and August 2021. We examined whether their daily duration spent in sedentary behavior (SB), light-intensity physical activity (LPA), and moderate-to-vigorous-intensity physical activity (MVPA) varied by sociodemographic characteristics, health and physical function, and COVID-19 related factors. On average, participants accumulated 12.4 (SD 1.9) hours/day in SB, 218.6 (SD 64.3) minutes/day in LPA, and 42.4 (SD 31.0) minutes/day in MVPA, exhibiting overall reduced PA levels than previously published pre–COVID-19 norms of older US women. Among participants aged ≥80 years, sedentary time was 7.5% (P=.003) higher and the time spent in LPA and MVPA was, respectively, 13.3% (P=.03) and 44.9% (P<.001) lower than those aged 60-79 years. More MVPA participation and a less sedentary lifestyle were observed in those who had a higher self-rated health score (MVPA: P=.001, SB: P=.04) and lower fear of falling (FOF; MVPA: P=.003, SB: P=.04). Poorer performance in the 30-second sit-to-stand (STS) test was independently associated with more SB (P=.01) and less LPA (P=.04) and MVPA (P=.001) time among participants. In addition, sedentary time was 5.0% higher (P=.03) in frail and prefrail participants than their healthy counterparts. During the pandemic, older women spent the majority of their waking time being sedentary, while LPA accounted for a larger portion of their daily PA. Therefore, replacing SB with LPA (rather than MVPA) might provide a more feasible PA target for older women, particularly those aged ≥80 years or who have reduced physical function. In addition, targeted interventions might be beneficial in promoting an active lifestyle for those who live alone, are prefrail or frail, and have a high FOF in older age. RR2-10.2196/27381
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影响因子：
3.9
作者：
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