Quantifying physical activity across the midlife: Does consideration of perceived exertion matter?
Quantifying physical activity across the midlife: Does consideration of perceived exertion matter?
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DOI：
10.1016/j.pmedr.2022.101850
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发表时间：
2022-08
影响因子：
2.8
通讯作者：
Gabriel, Kelley Pettee
中科院分区：
文献类型：
--
作者：
Ylitalo, Kelly R.;Karvonen-Gutierrez, Carrie A.;Oh, Minsuk;Sternfeld, Barbara;Stamey, James;Gabriel, Kelley Pettee
大多数女性报告说，在计划好的体育活动中，她们会进行少量或适度的运动。散步是中年女性最常见的体育活动。自我报告的体力活动不欣赏活动消耗的感知。将报告的身体活动转化为代谢当量，可以促进比较。许多问卷调查确定了身体活动（PA）的频率、持续时间和强度，以达到PA建议的基准。然而，当运动可能受到年龄或健康特征的影响时，大多数评分算法使用绝对强度估计。本研究量化了有或没有对感知劳累进行调整的PA估计，并评估了差异是否与个人水平特征相关。来自全国妇女健康研究的美国妇女（n = 2711）在8次两年一次的访问中完成了≥3次Kaiser体力活动调查（KPAS）（基线年龄：46.4±2.7岁）。使用2011年体能活动纲要，将运动模式和消耗的KPAS反应转换为任务代谢当量（METs），以估计绝对和感知强度调整后的METs。使用重复测量（线性混合效应）回归模型来检查社会人口统计学和健康相关特征与绝对MET估计和感知强度调整后MET估计之间差异变化的关系。年龄较大（p < 0.001）、中国（p < 0.001）和日本（p = 0.01）种族以及当前吸烟（p = 0.001）与绝对MET值和感知强度调整MET值之间的正差异相关，这表明感知强度较低的身体活动。然而，对于大多数参与者来说，基于绝对强度的估计与经过时间调整的感知强度估计非常接近。传统的PA评分技术仅使用绝对强度估计，可能在中年和老年成年妇女的纵向队列研究中提供足够的PA估计。
Most women report small or moderate exertion during planned physical activity. Walking is the most common physical activity among mid-life women. Self-reported physical activity does not appreciate perceptions of activity exertion. Converting reported physical activity to metabolic equivalents fosters comparison. Many questionnaires ascertain physical activity (PA) frequency, duration, and intensity to benchmark achievement of PA recommendations. However, most scoring algorithms utilize absolute intensity estimates when exertion may be influenced by age or health characteristics. This study quantified PA estimates with and without adjustments for perceived exertion and evaluated if differences were associated with individual-level characteristics. Women (n = 2,711) in the United States from the Study of Women’s Health Across the Nation who completed ≥ 3 Kaiser Physical Activity Surveys (KPAS) across 8 biennial visits were included (baseline age: 46.4 ± 2.7 years). KPAS responses about activity mode and exertion were converted to metabolic equivalent of a task (METs) using the 2011 Compendium of Physical Activities to estimate absolute and perceived intensity-adjusted METs. Repeated measures (linear mixed effects) regression models were used to examine associations of sociodemographic and health-related characteristics with change in the difference between absolute MET estimates and perceived intensity-adjusted MET estimates. Older age (p < 0.001), Chinese (p < 0.001) and Japanese (p = 0.01) ethnicity, and current smoking (p = 0.001) were associated with positive differences between absolute and perceived intensity-adjusted MET estimates, which is suggestive of lower perceived-intensity physical activity. However, for most participants, absolute intensity-based estimates closely approximated perceived intensity-adjusted estimates over time. Traditional PA scoring techniques using absolute intensity estimates only may provide sufficient estimates of PA in longitudinal cohort studies of mid-life and older adult women.
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DOI：
10.1097/00005768-200007000-00022
发表时间：
2000-07-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Ainsworth, BE;Sternfeld, B;Jackson, K
通讯作者：
Jackson, K
影响因子：
3.1
作者：
Gabriel, Kelley K. Pettee;Morrow, James R., Jr.;Woolsey, Anne-Lorraine T.
通讯作者：
Woolsey, Anne-Lorraine T.
影响因子：
3
作者：
Brooks, AG;Withers, RT;Cormack, J
通讯作者：
Cormack, J
影响因子：
3.1
作者：
Ainsworth BE;Caspersen CJ;Matthews CE;Mâsse LC;Baranowski T;Zhu W
通讯作者：
Zhu W
DOI：
10.1249/mss.0b013e31817c65d0
发表时间：
2008-07-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Lee, I-Min;Buchner, David M.
通讯作者：
Buchner, David M.