Department of Psychology, Rowan University, 201 Mullica Hill Road, Glassboro, NJ 08028, USA.
Department of Family Medicine, Rowan School of Osteopathic Medicine, Stratford, NJ, USA.
Ann Behav Med. 2023 Jan 2;57(1):50-60. doi: 10.1093/abm/kaac031.
Risk for cardiovascular disease is particularly high among women in midlife (ages 40-60). Moderate-to-vigorous-intensity physical activity (PA) can protect against risk during this time, and research is needed to understand contributors to PA motivation and behavior in daily life.
This study used ecological momentary assessment to examine: (a) within-person associations between social interactions (both quantity and quality) and PA outcomes (motivation and behavior) among women in midlife, and (b) variability in within-person associations across days.
Women ages 40-60 with one or more cardiovascular disease risk conditions (e.g., hypertension; n = 75; MAge = 51.6 years, MBMI = 34.0 kg/m2) wore waistband accelerometers and completed five surveys per day for 10 days.
Controlling for social interactions overall, at times when women reported a higher number of positive interactions, they reported higher PA motivation; this association was negative for both the number and valence of negative interactions. At times when women experienced a higher number of interactions overall, they engaged in fewer subsequent minutes of moderate-to-vigorous-intensity PA, though reports of positive and negative interactions were not associated with moderate-to-vigorous-intensity PA behavior. Importantly, the direction of these within-person associations differed between days of observation (positive associations on ~50% of days and negative associations on ~50% of days).
Findings show that social interactions influence PA motivation and behavior among women in midlife but that these influences are inconsistent, suggesting the need for careful consideration of how to engage social interactions to promote PA in this group.
心血管疾病风险在中年女性（40-60 岁）中尤其高。中等至高强度的身体活动（PA）可以在此期间保护风险，需要研究了解日常生活中促进 PA 动机和行为的因素。
本研究使用生态瞬时评估来检查：（a）中年女性的社会互动（数量和质量）与 PA 结果（动机和行为）之间的个体内关联，以及（b）个体内关联在不同天之间的变化。
患有一种或多种心血管疾病风险条件（例如，高血压；n=75；MAge=51.6 岁，MBMI=34.0 kg/m2）的 40-60 岁女性佩戴腰部加速度计，并在 10 天内每天完成五次调查。
控制总体社会互动，当女性报告更多积极互动时，她们报告的 PA 动机更高；对于负面互动的数量和效价，这种关联都是负面的。当女性总体上经历更多互动时，她们随后进行的中等至高强度 PA 时间减少，尽管积极和消极互动的报告与中等至高强度 PA 行为无关。重要的是，这些个体内关联的方向在观察日之间有所不同（在约 50%的日子里存在正相关，在约 50%的日子里存在负相关）。
研究结果表明，社会互动影响中年女性的 PA 动机和行为，但这些影响不一致，这表明需要仔细考虑如何利用社会互动来促进这一群体的 PA。
