自我效能感在心力衰竭患者的动机与体力活动之间起中介作用。
Self-efficacy Mediates the Relationship Between Motivation and Physical Activity in Patients With Heart Failure.
机构信息
Leonie Klompstra, PhD Post-doctoral Researcher, Division of Nursing, Department of Social and Welfare Studies, Linköping University, Sweden. Tiny Jaarsma, PhD, RN Professor, Division of Nursing, Department of Social and Welfare Studies, Linköping University, Sweden. Anna Strömberg, PhD, RN Professor, Division of Nursing, Department of Medical and Health Sciences, and Department of Cardiology, Linköping University, Sweden; and Program in Nursing Science, University of California Irvine.
出版信息
J Cardiovasc Nurs. 2018 May/Jun;33(3):211-216. doi: 10.1097/JCN.0000000000000456.
BACKGROUND
Motivation is necessary in patients with heart failure (HF) who are attempting to become more physically active but may not be sufficient to initiate physical activity. Self-efficacy might explain the relationship between motivation and physical activity.
OBJECTIVE
The aim of this study was to examine the role of exercise self-efficacy in the relationship between exercise motivation and physical activity in patients with HF.
METHODS
A total of 100 stable patients with HF (88% in New York Heart Association class II/III; mean age, 67 ± 13 years; 62% men) were studied. Self-efficacy was measured with the Exercise Self-Efficacy Scale; motivation, with the Exercise Motivation Index; and physical activity, with a self-report questionnaire. Logistic regression analyses were made to examine the mediation effect of exercise self-efficacy on the relationship between exercise motivation and physical activity.
RESULTS
Forty-two percent of the 100 patients reported engaging in less than 60 minutes per week of physical activity. Motivation predicted physical activity (b = 0.58, P < .05), but after controlling for self-efficacy, the relationship between motivation and physical activity was no longer significant (b = 0.76, P = .06), indicating full mediation.
CONCLUSION
Motivation to be physically active is important but not sufficient. In addition to a high level of motivation to be physically active, it is important that patients with HF have a high degree of self-efficacy.
背景
对于试图增加身体活动但动机可能不足的心力衰竭（HF）患者，动机是必要的，但可能不足以启动身体活动。自我效能可能解释了动机与身体活动之间的关系。
目的
本研究旨在探讨运动自我效能在 HF 患者运动动机与身体活动之间关系中的作用。
方法
共纳入 100 例稳定的 HF 患者（88%为纽约心脏协会心功能 II/III 级；平均年龄 67 ± 13 岁；62%为男性）。运动自我效能采用运动自我效能量表进行测量；运动动机采用运动动机指数进行测量；身体活动采用自我报告问卷进行测量。采用逻辑回归分析检验运动自我效能在运动动机与身体活动之间关系中的中介作用。
结果
100 例患者中有 42%报告每周的身体活动少于 60 分钟。动机预测身体活动（b = 0.58，P <.05），但在控制了自我效能后，动机与身体活动之间的关系不再显著（b = 0.76，P =.06），表明完全中介。
结论
身体活动的动机很重要，但还不够。除了有较高的身体活动动机外，HF 患者的自我效能也很重要。
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