Brown University School of Public Health, Providence, RI, USA.
University of California San Diego, La Jolla, CA, USA.
Health Educ Behav. 2022 Jun;49(3):446-454. doi: 10.1177/10901981221074908. Epub 2022 Feb 28.
Only 17% of Latinas meet national physical activity (PA) guidelines for both moderate-to-vigorous aerobic and muscle-strengthening PA. Additional health benefits are derived from the combination of aerobic and muscle-strengthening PA (vs. aerobic alone), yet there is paucity in research on muscle-strengthening activity in Latinas. The aim of this study was to examine changes in muscle-strengthening activity from baseline to 6 and 12 months in , a 12-month PA randomized controlled trial for Latinas.
A secondary data analysis was conducted among 131 Latinas ages 18-65 years, who were randomized to either a PA Intervention or a Wellness Control. Self-reported muscle-strengthening exercise was measured at baseline, 6 months, and 12 months via adapted muscle-strengthening questions from the Behavioral Risk Factor Surveillance System.
There was a 16-minute/week difference in median minute/week of muscle-strengthening activity between Intervention and Wellness at 6 months ( = 7.91, = .04) and 45-minute/week difference at 12 months ( = 25.80, = .06) adjusting for baseline. Significantly more PA Intervention participants met muscle-strengthening guidelines of 2 or more days/week at 6 months versus Wellness Control participants (odds ratio [OR] = 4.29, 95% confidence interval [CI] = [1.03, 17.84]).
Results from the current study showed that Latinas engaged in muscle-strengthening activity in an intervention that emphasized primarily aerobic PA outcomes, suggesting they may be interested in engaging in muscle-strengthening activities. Future interventions targeting both aerobic and muscle-strengthening activity could achieve greater health improvements and help more Latinas reach the full national PA guidelines. NCT01583140.
只有 17%的拉丁裔女性符合国家关于中等至剧烈有氧运动和肌肉强化型体力活动的体力活动（PA）指南。从有氧运动和肌肉强化型体力活动（与仅有氧运动相比）的结合中可以获得额外的健康益处，但针对拉丁裔女性的肌肉强化型体力活动的研究却很少。本研究的目的是检查在一项针对拉丁裔女性的为期 12 个月的 PA 随机对照试验中，从基线到 6 个月和 12 个月时肌肉强化型体力活动的变化。
对 131 名年龄在 18-65 岁的拉丁裔女性进行了二次数据分析，她们被随机分配到 PA 干预组或健康对照组。通过行为风险因素监测系统的适应性肌肉强化问题，在基线、6 个月和 12 个月时自我报告肌肉强化运动。
在 6 个月时，干预组和健康对照组之间的中位数每周肌肉强化活动分钟数差异为 16 分钟/周（ = 7.91， =.04），在 12 个月时差异为 45 分钟/周（ = 25.80， =.06），调整了基线。与健康对照组相比，更多的 PA 干预组参与者在 6 个月时达到了每周 2 天或以上的肌肉强化指南（优势比[OR] = 4.29，95%置信区间[CI] = [1.03, 17.84]）。
本研究结果表明，在强调主要有氧运动结果的干预措施中，拉丁裔女性参与了肌肉强化活动，这表明她们可能有兴趣参与肌肉强化活动。未来针对有氧运动和肌肉强化型体力活动的干预措施可以实现更大的健康改善，并帮助更多的拉丁裔女性达到国家全部 PA 指南。NCT01583140。
