Psychological predictors of physical activity in the Diabetes Prevention Program
Psychological predictors of physical activity in the Diabetes Prevention Program
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DOI：
10.1016/j.jada.2006.02.011
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发表时间：
2006-05-01
影响因子：
--
通讯作者：
Nathan, DM
中科院分区：
文献类型：
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作者：
Delahanty, LM;Conroy, MB;Nathan, DM
在接受糖尿病预防计划（DPP）生活方式干预之前，预测基线、第1年和研究结束时的体力活动水平（帕尔斯）（随机化后2至3年）。设计和受试者在最后293名随机化的DPP生活方式参与者中，274名（94%）在基线时完成了有效的问卷，评估PAL、运动自我效能、感知压力、抑郁、和焦虑统计分析进行了相关性和逐步多元回归分析。结果在基线时，这个子集是类似于整个DPP生活方式队列：平均年龄为52.5岁，65%是女性，平均PAL为15.7代谢当量小时每周。较高水平的基线休闲PAL与更愿意改变PAL相关（r=0.44，P < 0.0001），运动自我效能感较高（r=0.18，P=0.002），和较低水平的知觉压力（r=-0.16，P =0.009）、抑郁（r=-0.18，P =0.003）和焦虑（r=-0.14，P =0.03），在1年和研究结束时具有相似的相关性。在多变量模型中，作为一个男人，较低的抑郁水平和较低的体重指数是较高的基线休闲PAL的独立相关因素;作为一个男人，更大的基线运动自我效能和活动水平是1年和研究结束时更大的休闲PAL水平的独立相关因素。更大的准备改变PAL在基线也是一个独立的相关性更大的PAL在研究结束时study.Conclusions在这一代表性的样本的DPP生活方式的参与者，作为一个男人，较低的体重指数，更大的准备PAL的变化，更高的运动自我效能，和较低的感知压力，抑郁和焦虑分数与较高水平的基线PAL与类似的模式在1年和研究结束。这些发现可能有助于确定哪些患者最有可能在生活方式干预计划中增加PAL。
before receiving a Diabetes Prevention Program (DPP) lifestyle intervention that predict physical activity levels (PALs) at baseline, I year, and end of study (2 to 3 years after randomization).Design and subjects Of the final 293 DPP lifestyle participants randomized, 274 (94%) completed validated questionnaires at baseline assessing stage of change for PAL, exercise self-efficacy, perceived stress, depression, and anxiety. Statistical analyses performed Correlations and stepwise multiple regression analyses.Results At baseline, this subset was similar to the entire DPP lifestyle cohort: mean age was 52.5 years, 65% were women, and mean PAL was 15.7 metabolic equivalent hours per week. Higher levels of baseline leisure PAL correlated with greater readiness to change PAL (r=0.44, P < 0.0001), higher exercise self-efficacy (r=0.18, P=0.002), and lower levels of perceived stress (r=-0.16, P=0.009), depression (r=-0.18, P=0.003), and anxiety (r=-0.14, P=0.03), with similar correlations at 1 year and end of study. In multivariate models, being a man, lower levels of depression, and lower body mass index were independent correlates of higher baseline leisure PAL; being a man, greater baseline exercise self-efficacy, and activity level were independent correlates of greater leisure PAL levels at 1 year and end of study. Greater readiness to change PAL at baseline was also an independent correlate of greater PAL at end of study.Conclusions In this representative sample of DPP lifestyle participants, being a man, lower body mass index, greater readiness for change in PAL, higher exercise self-efficacy, and lower perceived stress, depression, and anxiety scores correlated with higher levels of baseline PAL with similar patterns at 1 year and end of study. These findings may help determine which patients are most likely to increase PAL in lifestyle intervention programs.