J Phys Act Health. 2020 May 1;17(5):512-518. doi: 10.1123/jpah.2019-0472.
Muscle-strengthening exercise (MSE) is a component of the World Health Organization's "2010 Global Recommendations on Physical Activity for Health." However, its participation trends are seldom examined in physical activity surveillance. This study describes the prevalence, trends, and correlates of MSE among a large sample of US adults.
The data were analyzed from the 2011, 2013, 2015, and 2017 US Behavioral Risk Factor Surveillance System surveys. Self-reported MSE participation was assessed using the same validated survey item. Population-weighted proportions were calculated for (1) "insufficient" (0-1 time/wk) or (2) "sufficient MSE" (≥2 times/wk). Prevalence ratios of those reporting sufficient MSE across sociodemographic characteristics were calculated using multivariate Poisson regression.
The data were available for 1,735,626 participants (≥18 y). Over the 7-year monitoring period, the prevalence of sufficient MSE showed a small (1.2%) but statistically significant increase (2011 = 29.1%; 2013 = 29.4%; 2015 = 30.2%; and 2017 = 30.3%, P < .001 for linear trend). Older adults, women, and those with lower education/income were consistently less likely to report sufficient MSE, compared with their counterparts.
From 2011 to 2017, between 69.7% and 70.9% of US adults did not meet the MSE guidelines. Consistently low participation levels highlight the need to provide support for uptake of or adherence to MSE at the population level.
肌肉强化运动（MSE）是世界卫生组织“2010 年全球身体活动健康建议”的组成部分。然而，在身体活动监测中很少检查其参与趋势。本研究描述了大量美国成年人中 MSE 的流行率、趋势和相关性。
对 2011、2013、2015 和 2017 年美国行为风险因素监测系统调查的数据进行了分析。使用相同的经过验证的调查项目评估自我报告的 MSE 参与情况。计算了（1）“不足”（每周 0-1 次）或（2）“足够 MSE”（每周≥2 次）的人群加权比例。使用多变量泊松回归计算了报告足够 MSE 的人群在社会人口统计学特征方面的流行率比。
共有 1,735,626 名（≥18 岁）参与者的数据可用。在 7 年的监测期间，足够 MSE 的流行率显示出较小（1.2%）但具有统计学意义的增加（2011 年=29.1%；2013 年=29.4%；2015 年=30.2%；2017 年=30.3%，线性趋势 P<.001）。与同龄人相比，老年人、女性和受教育程度/收入较低的人报告足够 MSE 的可能性始终较低。
从 2011 年到 2017 年，69.7%至 70.9%的美国成年人不符合 MSE 指南。始终较低的参与水平突出表明需要在人群层面提供支持，以提高 MSE 的参与率或坚持率。
