a Department of Pediatrics , University at Buffalo , Buffalo , NY , USA.
b USDA-ARS-NPA Grand Forks Human Nutrition Center , Grand Forks , ND , USA.
Anxiety Stress Coping. 2016 Jul;29(4):457-62. doi: 10.1080/10615806.2015.1065318. Epub 2015 Jul 21.
Stress is associated with gains in adiposity. One factor that determines how much stress is experienced is how quickly an adolescent reduces responding (habituates) across repeated stressors. The purpose of this study was to determine the association of body mass index (BMI) percentile and the rate of habituation to a stressor.
Thirty-four adolescents completed anthropometric measures and a habituation protocol using a within study design.
The habituation protocol measured the rate of decline in perceived stress and heart rate (HR) across four, two-minute serial subtraction trials.
Multivariate linear regression revealed the habituation rate of the HR predicted BMI percentile after adjusting for gender, socioeconomic status, and initial HR (β = 17.2, p < .04).
Slower habituation to a laboratory stressor was associated with greater BMI percentiles in adolescents.
压力与肥胖有关。决定一个人经历压力程度的一个因素是，他在面对反复的压力源时，反应（习惯化）的速度有多快。本研究的目的是确定体重指数（BMI）百分位数与对压力源习惯化速度之间的关系。
34 名青少年采用研究内设计完成了人体测量和习惯化方案。
习惯化方案通过四项两分钟的连续减法试验，测量感知压力和心率（HR）的下降速度。
多变量线性回归显示，在校正性别、社会经济地位和初始 HR 后，HR 的习惯化速度预测了 BMI 百分位数（β=17.2，p<.04）。
在青少年中，对实验室压力源的习惯化速度较慢与更大的 BMI 百分位数有关。
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