a School of Psychology, Curtin University , Perth , Western Australia.
b School of Psychology, University of Leeds , Leeds , UK.
Health Psychol Rev. 2019 Mar;13(1):91-109. doi: 10.1080/17437199.2018.1532312. Epub 2018 Oct 14.
Several interventions have targeted dyads to promote physical activity (PA) or reduce sedentary behaviour (SB), but the evidence has not been synthesised. Sixty-nine studies were identified from MEDLINE, PsycINFO, and Web of Science, and 59 were included in the main meta-analyses (providing 72 independent tests). Intervention details, type of dyadic goal, participant characteristics, and methodological quality were extracted and their impact on the overall effect size was examined. Sensitivity analyses tested effect robustness to (a) the effects of other statistically significant moderators; (b) outliers; (c) data included for participants who were not the main target of the intervention. Dyadic interventions had a small positive, highly heterogeneous, effect on PA g = .203, 95% CI [0.123-0.282], compared to comparison conditions including equivalent interventions targeting individuals. Shared target-oriented goals (where both dyad members hold the same PA goal for the main target of the intervention) and peer/friend dyads were associated with larger effect sizes across most analyses. Dyadic interventions produced a small homogeneous reduction in SB. Given dyadic interventions promote PA over-and-above equivalent interventions targeting individuals, these interventions should be more widespread. However, moderating factors such as the types of PA goal and dyad need to be considered to maximise effects.
已有多项针对二人组的干预措施旨在促进身体活动（PA）或减少久坐行为（SB），但这些干预措施的效果尚未得到综合评估。从 MEDLINE、PsycINFO 和 Web of Science 中确定了 69 项研究，并对 59 项研究进行了主要的荟萃分析（提供了 72 个独立测试）。提取了干预细节、对偶目标类型、参与者特征和方法学质量，并检查了它们对总体效应大小的影响。敏感性分析测试了效应稳健性，包括（a）其他具有统计学意义的调节因素的影响；（b）异常值的影响；（c）针对非干预主要目标参与者的数据影响。与包括针对个体的等效干预措施在内的对照条件相比，双人干预对 PA 的影响较小，且高度异质，g=0.203，95%置信区间[0.123-0.282]。共享以目标为导向的目标（即二人组的两个成员都为干预的主要目标设定相同的 PA 目标）和同伴/朋友二人组在大多数分析中都与更大的效应大小相关。双人干预可减少 SB ，效果较小但同质。鉴于双人干预可促进 PA 的效果优于针对个体的等效干预措施，因此应更广泛地推广这些干预措施。然而，需要考虑 PA 目标和二人组的类型等调节因素，以最大化效果。
