OBJECTIVE Motivation is a barrier to physical activity (PA) among African American (AA) women, but past studies have implemented a "one-size-fits-all" approach and have not addressed differences in autonomous motivation. This pilot randomized controlled trial assessed the preliminary efficacy of "Developing Real Incentives and Volition for Exercise," a community- and theory-based intervention, which evaluated whether a motivationally matched (vs. a nonmatched) intervention increases daily total PA. METHOD In total, 68 AA women (50.72 ± 13.66 years; 86.8% with obesity) were randomized to an 8-week challenge-focused program (targeted toward high autonomous motivation) or rewards-focused program (targeted toward low autonomous motivation). Randomization was stratified by baseline autonomous motivation. FitBits were used during the intervention to promote self-monitoring (both programs) and social connectedness (challenge program only). RESULTS Both programs retained ≥ 80% of participants. Process evaluation revealed high attendance, dose, and fidelity (both programs). However, contrary to expectations, across all motivational levels (low and high autonomous), the challenge-focused intervention resulted in a greater increase in total daily PA (primary outcome), with an average increase of 17.9 min in the challenge-focused intervention versus an average decrease of 8.55 min in the rewards-focused intervention. An exploratory follow-up analysis revealed that engagement with the FitBit mobile app predicted greater PA at postintervention in the challenge-focused program. CONCLUSIONS A team-based approach targeting social connectedness, enjoyment of PA, and positive intragroup competition is a promising approach for promoting PA among AA women. These findings are used to guide a discussion on best practices for engaging AA women in future behavioral interventions. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

中文翻译：

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“发展真正的锻炼动机和意志”（DRIVE）的结果：一项促进非裔美国女性身体活动的随机对照试验。

目标 动机是非裔美国 (AA) 女性进行体力活动 (PA) 的障碍，但过去的研究采用了“一刀切”的方法，并没有解决自主动机的差异。这项随机对照试验评估了“发展真正的锻炼动机和意志”的初步功效，这是一种基于社区和理论的干预措施，它评估了动机匹配（与不匹配）的干预是否会增加每日总 PA。方法 总共 68 名 AA 女性（50.72 ± 13.66 岁；86.8% 患有肥胖症）被随机分配到为期 8 周的以挑战为重点的计划（针对高自主动机）或以奖励为重点的计划（针对低自主动机）。随机化按基线自主动机分层。在干预期间使用 FitBits 来促进自我监控（两个项目）和社会联系（仅挑战项目）。结果 两个项目的参与者保留率均≥ 80%。过程评估显示出勤率、剂量和保真度较高（两个项目）。然而，与预期相反，在所有动机水平（低自主性和高自主性）中，以挑战为中心的干预导致每日总 PA（主要结果）的增加更大，与以挑战为中心的干预相比，以挑战为中心的干预平均增加了 17.9 分钟。以奖励为重点的干预措施平均减少 8.55 分钟。一项探索性后续分析显示，参与 FitBit 移动应用程序可预测在以挑战为中心的计划干预后获得更高的 PA。结论 基于团队的方法以社会联系、享受 PA 和积极的群体内竞争为目标，是在 AA 女性中促进 PA 的一种有前途的方法。这些发现用于指导关于让 AA 女性参与未来行为干预的最佳实践的讨论。（PsycInfo 数据库记录 (c) 2022 APA，保留所有权利）。