Indiana University School of Nursing, Indianapolis, IN, USA.
Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, OH, USA.
Rehabil Nurs. 2020 Dec 1;45(6):348-357. doi: 10.1097/rnj.0000000000000227.
This study aims to determine (1) if depressive symptoms in the year following completion of cardiac rehabilitation impact physical functional capacity and (2) if exercise, perceived benefits and barriers, self-efficacy, and social support moderate this relationship.
This longitudinal correlational secondary data analysis included 379 cardiovascular rehabilitation patients.
Participants completed measures of depression and potential moderating variables at baseline, 2 months, 6 months, and 12 months and 6-minute work test at baseline and 12 months and wore heart rate monitors to measure exercise for 12 months.
Poorer physical functional capacity was predicted by depressed mood score. This relationship was moderated by the percentage of time exercising in target heart rate zone and family support of exercise, but not by perceived benefits and barriers or self-efficacy for exercise.
Depressive symptoms negatively impact physical functional capacity, and this relationship is moderated by family support and the percentage of time exercising in target heart rate zone.
Improving percentage of time exercising in target heart rate zone may be a mechanism by which patients with depressed mood can optimize physical functional capacity.
本研究旨在确定（1）心脏康复完成后一年内的抑郁症状是否会影响身体功能能力，以及（2）运动、感知益处和障碍、自我效能感和社会支持是否会调节这种关系。
本纵向相关性二次数据分析纳入了 379 名心血管康复患者。
参与者在基线、2 个月、6 个月和 12 个月以及基线和 12 个月时完成了抑郁和潜在调节变量的测量，并进行了 6 分钟步行试验，同时佩戴心率监测器进行了 12 个月的运动测量。
抑郁情绪评分较差预测了身体功能能力较差。这种关系受到运动达到目标心率区间的时间百分比和运动的家庭支持的调节，但不受感知益处和障碍或运动自我效能感的调节。
抑郁症状会对身体功能能力产生负面影响，而这种关系受到家庭支持和运动达到目标心率区间的时间百分比的调节。
提高运动达到目标心率区间的时间百分比可能是改善抑郁情绪患者身体功能能力的一种机制。
