■为了确定基线人口统计,临床,运动干预依从性的心理社会预测因子在通过定义运动(STRRIDE)试验进行的有针对性的风险降低干预研究中。
■总共947名患有血脂异常或糖尿病前期的成年人被纳入非活动对照组或10-23千卡/千克/周的10种运动干预措施之一,40-80%的峰值耗氧量,培训6-8个月。两组均包括阻力训练。平均有氧和抵抗依从性百分比分别计算为完成的量除以规定的每周分钟或运动时间100的总集合。38临床,人口统计学,和社会心理测量被认为是三个独立的模型:1)临床+人口统计学因素,2)社会心理因素,3)所有措施。对每个模型执行后向自举变量选择算法和多元回归。
■在临床和人口测量模型中(n=947),变量解释了依从性差异的16.7%(p<0.001);较低的空腹血糖解释了最大的差异(部分R2=3.2%).在心理社会因素模型中(n=561),变量解释了依从性差异的19.3%(p<0.001);较大的36项简短形式健康调查(SF-36)身体成分得分解释了最大的差异(部分R2=8.7%)。在所有临床模型中,人口统计学,和心理社会措施(n=561),变量解释了22.1%的方差(p<0.001);更高的SF-36物理成分评分解释了最大的方差(部分R2=8.9%).SF-36身体成分评分是在任何模型中解释>5%的依从性差异的唯一变量。
■基线人口统计,临床,心理社会变量解释了大约22%的运动依从性差异。所解释的有限差异表明,未来的研究应该调查其他措施,以更好地识别存在运动干预依从性差风险的参与者。
UNASSIGNED: To identify baseline demographic, clinical, and psychosocial predictors of exercise intervention adherence in the Studies of a Targeted Risk Reduction Intervention through Defined Exercise (STRRIDE) trials.
UNASSIGNED: A total of 947 adults with dyslipidemia or prediabetes were enrolled into an inactive control group or one of ten exercise interventions with doses of 10-23 kcal/kg/week, intensities of 40-80% of peak oxygen consumption, and training for 6-8-months. Two groups included resistance training. Mean percent aerobic and resistance adherence were calculated as the amount completed divided by the prescribed weekly minutes or total sets of exercise times 100, respectively. Thirty-eight clinical, demographic, and psychosocial measures were considered for three separate models: 1) clinical + demographic factors, 2) psychosocial factors, and 3) all measures. A backward bootstrapped variable selection algorithm and multiple regressions were performed for each model.
UNASSIGNED: In the clinical and demographic measures model (n=947), variables explained 16.7% of the variance in adherence (p<0.001); lesser fasting glucose explained the greatest amount of variance (partial R2 = 3.2%). In the psychosocial factors model (n=561), variables explained 19.3% of the variance in adherence (p<0.001); greater 36-Item Short Form Health Survey (SF-36) physical component score explained the greatest amount of variance (partial R2 = 8.7%). In the model with all clinical, demographic, and psychosocial measures (n=561), variables explained 22.1% of the variance (p<0.001); greater SF-36 physical component score explained the greatest amount of variance (partial R2 = 8.9%). SF-36 physical component score was the only variable to account for >5% of the variance in adherence in any of the models.
UNASSIGNED: Baseline demographic, clinical, and psychosocial variables explain approximately 22% of the variance in exercise adherence. The limited variance explained suggests future research should investigate additional measures to better identify participants who are at risk for poor exercise intervention adherence.