Kaushal Navin, Rhodes Ryan E, Meldrum John T, Spence John C
1 University of Montreal.
2 University of Victoria.
J Sport Exerc Psychol. 2018 Apr 1;40(2):101-110. doi: 10.1123/jsep.2017-0307. Epub 2018 Jun 26.
A recent randomized controlled trial found that an intervention focused on developing an exercise habit increased weekly minutes of moderate to vigorous physical activity (MVPA) over 8 wk compared to a control group. The purpose of the current study was to test if changes in habit, as well as other behavioral strategy constructs from the Multi-Process Action Control Test, mediated between group condition and MVPA (self-report and accelerometry).
Inactive new gym members (N = 94) were randomized into control or experimental (habit-building) groups.
No construct entirely explained mediation condition (experimental and control) and changes in MVPA measured by accelerometry. Self-report MVPA found affective judgments, behavioral regulation, and preparatory habit to be mediated between group (experimental/control conditions) and changes in behavior (β = 0.36, 95% confidence interval [.05-.78]).
Self-reported and objectively measured behavior models demonstrated complete and partial mediation, respectively. New gym members could benefit from successful behavioral enactment by developing constructs to support habit formation.
最近一项随机对照试验发现，与对照组相比，一项专注于培养运动习惯的干预措施在8周内增加了中度至剧烈身体活动（MVPA）的每周时长。本研究的目的是检验习惯的变化以及多过程行动控制测试中的其他行为策略结构是否在分组情况和MVPA（自我报告和加速度计测量）之间起中介作用。
无运动习惯的新健身房会员（N = 94）被随机分为对照组或实验组（习惯培养组）。
没有任何一个结构能够完全解释中介条件（实验组和对照组）以及通过加速度计测量的MVPA变化。自我报告的MVPA发现，情感判断、行为调节和准备性习惯在分组（实验组/对照组条件）和行为变化之间起中介作用（β = 0.36，95%置信区间[.05 -.78]）。
自我报告和客观测量的行为模型分别显示出完全中介和部分中介作用。新健身房会员可以通过培养支持习惯形成的结构，从成功的行为实施中受益。
