基于视频的智能手机应用程序（'VIDEA bewegt'）在德国成年人中提供身体活动支持：一项单臂观察性研究。
Video-based smartphone app ('VIDEA bewegt') for physical activity support in German adults: a single-armed observational study.
机构信息
Department for Prevention and Care of Diabetes, University Hospital Dresden Clinic and Polyclinic III, Dresden, Germany
Department for Prevention and Care of Diabetes, University Hospital Dresden Clinic and Polyclinic III, Dresden, Germany.
出版信息
BMJ Open. 2022 Jan 25;12(1):e052818. doi: 10.1136/bmjopen-2021-052818.
OBJECTIVES
The primary objective of this study was to investigate the effect of the video-based smartphone app 'VIDEA bewegt' over eight programme weeks on physical activity in German adults.
DESIGN
The study used a single-arm observational design, assessing the app's effectiveness under real-life conditions. Data were collected from July 2019 to July 2020.
SETTING
The app is enabling users to access video-based educational content via their smartphone. A clinical visit or in-person contact was not required.
PARTICIPANTS
All individuals registered in the freely available app were invited to take part in the study.
INTERVENTIONS
The app aims to increase physical activity in everyday life. It combines educative videos on lifestyle-related benefits and instructional videos of strength and endurance exercises to do at home with motivational components like goal setting, documentation of progress and personalised messages.
PRIMARY AND SECONDARY OUTCOME MEASURES
Primary outcomes were physical activity based one MET minutes per week (metabolic equivalent) and step numbers.Secondary outcomes included physical self-efficacy (motivational, maintenance, recovery self-efficacy), health-related quality of life: Mental Health Component Summary score and Physical Health Component Summary score.
RESULTS
Of 97 people included in the data analysis, 55 successfully completed the programme and all questionnaires. Significant increases over eight programme weeks (between T0 and T2) were observed in physical activity based on MET minutes per week, health-related quality of life, and recovery self-efficacy. Time spent sitting and body mass index significantly decreased for those completing the programme.
CONCLUSIONS
Although significant benefits of physical activity were observed following a complete-case analysis, results should be dealt with caution. Studies with a larger and less heterogeneous sample and robust study designs able to measure causal effects would be desirable.
TRIAL REGISTRATION NUMBER
DRKS00017392.
目的
本研究的主要目的是在八个方案周内，通过基于视频的智能手机应用程序“VIDEA bewegt”，研究其对德国成年人身体活动的影响。
设计
本研究采用单臂观察设计，在真实环境下评估该应用程序的效果。数据收集于 2019 年 7 月至 2020 年 7 月。
地点
该应用程序使智能手机用户能够访问基于视频的教育内容，无需临床就诊或面对面接触。
参与者
所有在免费应用程序中注册的人都被邀请参加本研究。
干预措施
该应用程序旨在增加日常生活中的身体活动量，它结合了与生活方式相关的益处教育视频以及在家中进行的力量和耐力锻炼教学视频，并结合了目标设定、进度记录和个性化消息等激励因素。
主要和次要结果测量
主要结果是每周基于代谢当量（MET）分钟的身体活动量和步数。次要结果包括身体自我效能感（激励、维持、恢复自我效能感）、健康相关生活质量：心理健康成分综合评分和身体健康成分综合评分。
结果
在数据分析中，97 人中有 55 人成功完成了方案和所有问卷。在八个方案周内（T0 至 T2）观察到身体活动基于 MET 分钟显著增加，健康相关生活质量和恢复自我效能感显著增加。完成方案的人坐着的时间和体重指数显著下降。
结论
尽管在完全案例分析中观察到身体活动有显著益处，但结果应谨慎处理。需要进行具有更大、异质性更小的样本和能够测量因果效应的稳健研究设计的研究。
试验注册号
DRKS00017392。
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