探索身体活动维持的边界条件:从减肥干预中获得的时间序列数据的二次分析
Dario Baretta1, Guillaume Chevance2,3, Shadia J Mansour-Assi4
1Institute of Psychology, University of Bern, Bern, Switzerland.
Health psychology and behavioral medicine
|September 15, 2025
概括
在较长的时间范围内更好地检测到身体活动的维持. 稳定性在28-56天内增加,支持持续行为的概念定义. 了解边界条件是关键.
科学领域:
- 健康心理学 心理健康心理学
- 行为科学 行为科学
- 运动科学 运动科学
背景情况:
- 行为维护是健康心理学的一个核心概念.
- 以前的研究缺乏对行为维护的概念和操作定义的共识.
- 这项研究解决了对身体活动维护提出的概念化需要经验支持的需求.
研究的目的:
- 实证测试身体活动维护的概念性命题.
- 调查边界条件,特别是活动值和时间表对检测维护的影响.
- 改进对如何运行和测量体育活动维护的理解.
主要方法:
- 从减肥干预中分析了350个中度至强度体力活动 (MVPA) 数据的时间序列 (每个为182天).
- 利用Fitbit数据来追踪每天的MVPA,参与者目标是每周150分钟.
- 采用了通用添加模型来分析跨多个时间尺度 (7,14,28,56天) 的个体轨迹.
主要成果:
- 身体活动轨迹在较短的时间尺度 (7-14天) 中表现出很高的变化.
- 轨迹在较长的时间尺度 (28-56天) 上显示出更大的稳定性,与维护概念保持一致.
- 调整10-20%的活动门增加了被归类为维护者的个人比例,但对于更高的门来说,维护仍然很少发生.
结论:
- 结果提供了对边界条件的初步证据,这些边界条件有助于检测身体活动维护.
- 对边界条件的系统检查对于推进行为维护研究至关重要.
- 该研究强调了时间尺度和门在定义和测量持续体育活动时的重要性.
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