Institute of Occupational, Social and Environmental Medicine, Goethe University Frankfurt, Frankfurt am Main, Germany
Department of Sports Medicine and Exercise Physiology, Goethe University, Frankfurt am Main, Germany.
Br J Sports Med. 2022 Jun;56(12):667-675. doi: 10.1136/bjsports-2021-104994. Epub 2022 Feb 15.
Public life restrictions associated with the COVID-19 pandemic caused reductions in physical activity (PA) and decreases in mental and somatic health. Considering the interplay between these factors, we investigated the effects of digital home exercise (DHE) during government-enforced lockdowns.
A multicentre randomised controlled trial was performed allocating healthy individuals from nine countries (N=763; 523 female) to a DHE or an inactive control group. During the 4-week main intervention, DHE members engaged in live-streamed multicomponent home exercise. Subsequently, both groups had access to prerecorded workouts for an additional 4 weeks. Outcomes, assessed weekly, included PA level (Nordic Physical Activity Questionnaire-Short), anxiety (Generalized Anxiety Disorder Scale-7), mental well-being (WHO-5 Questionnaire), sleep quality (Medical Outcome Study Sleep Scale), pain/disability (Chronic Pain Grade Scale) and exercise motivation (Self-Concordance Scale). Mixed models were used for analysis.
Live-streamed DHE consistently increased moderate PA (eg, week 1: 1.65 times more minutes per week, 95% CI 1.40 to 1.94) and vigorous PA (eg, week 1: 1.31 times more minutes per week, 95% CI 1.08 to 1.61), although the effects decreased over time. In addition, exercise motivation, sleep quality and anxiety were slightly improved for DHE in the 4-week live streaming period. The same applied to mental well-being (mean difference at week 4: +0.99, 95% CI 0.13 to 1.86), but an inverted trend was observed after live streaming was substituted by prerecorded exercise.
Live-streamed DHE represents an efficacious method to enhance PA and selected markers of health during pandemic-related public life restrictions. However, research on implementation is warranted to reduce dropout rates.
DRKS00021273.
与 COVID-19 大流行相关的公共生活限制导致身体活动（PA）减少，精神和身体健康状况下降。考虑到这些因素之间的相互作用，我们研究了政府强制封锁期间数字家庭锻炼（DHE）的效果。
一项多中心随机对照试验将来自九个国家的健康个体（N=763；523 名女性）分配到 DHE 或不活动对照组。在 4 周的主要干预期间，DHE 成员参加了现场直播的多组件家庭锻炼。随后，两组都可以访问额外的 4 周预先录制的锻炼。每周评估的结果包括 PA 水平（北欧身体活动问卷-短）、焦虑（广泛性焦虑症量表-7）、心理健康（世界卫生组织-5 问卷）、睡眠质量（医疗结果研究睡眠量表）、疼痛/残疾（慢性疼痛等级量表）和运动动机（自我一致性量表）。采用混合模型进行分析。
现场直播的 DHE 始终增加中等强度 PA（例如，第 1 周：每周增加 1.65 倍的分钟数，95%CI 1.40 至 1.94）和剧烈 PA（例如，第 1 周：每周增加 1.31 倍的分钟数，95%CI 1.08 至 1.61），尽管效果随时间逐渐减弱。此外，在 4 周的现场直播期间，DHE 运动动机、睡眠质量和焦虑略有改善。心理健康也是如此（第 4 周的平均差异：+0.99，95%CI 0.13 至 1.86），但在现场直播被预先录制的锻炼取代后，出现了相反的趋势。
现场直播的 DHE 是一种在与大流行相关的公共生活限制期间增强 PA 和选定健康指标的有效方法。然而，需要进行实施研究以降低辍学率。
DRKS00021273。
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