Correlates of Exercise Self-efficacy in a Randomized Trial of Mind-Body Exercise in Patients With Chronic Heart Failure.
Correlates of Exercise Self-efficacy in a Randomized Trial of Mind-Body Exercise in Patients With Chronic Heart Failure.
复制标题
慢性心力衰竭患者身心运动随机试验中运动自我效能的相关性。
DOI：
10.1097/hcr.0000000000000170
复制
发表时间：
2016
影响因子：
3.8
通讯作者：
Wayne,PeterM
中科院分区：
文献类型：
--
作者：
Yeh,GloriaY;Mu,Lin;Davis,RogerB;Wayne,PeterM
目的：运动自我效能感是身体活动行为最强的预测因子之一。先前的文献表明，太极拳，一种身心锻炼，可能会增加自我效能;然而，这并没有得到广泛的研究。人们对心力衰竭人群运动自我效能感发展的相关因素知之甚少。方法：我们利用了一项随机对照试验的数据，该试验对慢性心力衰竭患者进行了12周的团体太极拳课程与教育（n= 100）。多变量线性回归被用来探索运动自我效能在整个样本和亚组谁收到太极拳（n= 50）的变化可能的相关性。协变量包括基线生活质量、社会支持、功能参数、体力活动、血清生物标志物、社会人口统计学和临床心力衰竭参数。02)疲劳评分（β= 0.03，SE= 0.01，P=. 004)与自我效能的变化显著相关，6分钟步行最低三分位数和疲劳评分较高三分位数的人经历了最大的变化。干预组分配高度显著，太极拳组与教育对照组相比，自我效能感在12周内显著提高（β= 0.39，SE= 0.11，P<0.01）。001）。在单独太极组中，基线摄氧量较低（β=-0.05，SE= 0.01，P=.情绪下降（β=-0.01，SE= 0.003，P=.肾上腺素β= 0.003，SE= 0.001，P=. 005)在这项探索性分析中，我们的初步研究结果支持这样一个概念，即太极拳等干预措施可能有利于提高运动自我效能，特别是在心力衰竭患者中，这些患者的功能状态和情绪较低。
PURPOSE:Exercise self-efficacy is one of the strongest predictors of physical activity behavior. Prior literature suggests that tai chi, a mind-body exercise, may increase self-efficacy; however, this is not extensively studied. Little is known about the factors associated with development of exercise self-efficacy in a population with heart failure.METHODS:We utilized data from a randomized controlled trial of 12 weeks of group tai chi classes versus education in patients with chronic heart failure (n= 100). Multivariable linear regression was used to explore possible correlates of change in exercise self-efficacy in the entire sample and in the subgroup who received tai chi (n= 50). Covariates included baseline quality of life, social support, functional parameters, physical activity, serum biomarkers, sociodemographics, and clinical heart failure parameters.RESULTS:Baseline 6-minute walk (β=− 0.0003, SE= 0.0001, P=. 02) and fatigue score (β= 0.03, SE= 0.01, P=. 004) were significantly associated with change in self-efficacy, with those in the lowest tertile for 6-minute walk and higher tertiles for fatigue score experiencing the greatest change. Intervention group assignment was highly significant, with self-efficacy significantly improved in the tai chi group compared to the education control over 12 weeks (β= 0.39, SE= 0.11, P<. 001). In the tai chi group alone, lower baseline oxygen uptake (β=− 0.05, SE= 0.01, P=. 001), decreased mood (β=− 0.01, SE= 0.003, P=. 004), and higher catecholamine level (epinephrine β= 0.003, SE= 0.001, P=. 005) were significantly associated with improvements in self-efficacy.CONCLUSIONS:In this exploratory analysis, our initial findings support the concept that interventions like tai chi may be beneficial in improving exercise self-efficacy, especially in patients with heart failure who are deconditioned, with lower functional status and mood.