Cardiovascular responses to stress: II. Relationships to aerobic exercise patterns.
Cardiovascular responses to stress: II. Relationships to aerobic exercise patterns.
复制标题
心血管对压力的反应：II。
DOI：
10.1111/j.1469-8986.1987.tb01865.x
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发表时间：
1987
期刊：
影响因子：
3.7
通讯作者：
Strogatz,DS
中科院分区：
文献类型：
--
作者：
Light,KC;Obrist,PA;James,SA;Strogatz,DS
174名年龄在18-22岁之间的男性样本根据自我报告的每周有氧运动水平分为三分之一。心率，收缩压和舒张压，以及这些低，中，高运动组的射血前期反应进行了比较，在任务前休息和后来的适应性休息，自行车运动任务，所谓的休克回避反应时间任务，冷加压试验。在休息时，低运动量的受试者比高运动量的受试者显示出更高的心率和略高的舒张压。低运动量受试者对轻度运动任务和反应时间任务的心肌反应也比高运动量受试者大，这反映在对基线差异进行协方差校正后的心率、收缩压和射血前期测量的组间差异上。冷加压试验的组间差异较小，一般不显著。这些结果被解释为有氧运动训练可能降低β-肾上腺素能心肌对身体和行为挑战的反应的证据。
A sample of 174 men aged 18–22 years were divided into thirds based on self‐reported levels of weekly aerobic exercise. Heart rate, systolic and diastolic blood pressure, and pre‐ejection period responses of these low, moderate, and high exercise groups were compared during a pretask rest and a later acclimated rest, a bicycle exercise task, a purported shock‐avoidance reaction time task, and the cold pressor test. The low exercise subjects showed higher heart rates and marginally higher diastolic blood pressures than the high exercise subjects at rest. The low exercise subjects also showed greater myocardial responses to the mild exercise task and the reaction time task than the high exercise subjects, as reflected by group differences in heart rate, systolic blood pressure, and pre ejection period measures after covariance adjustment for baseline differences. Group differences observed in response to the cold pressor test were smaller and generally nonsignificant. These results were interpreted as evidence that aerobic exercise training may decrease beta‐adrenergic myocardial responses to physical and behavioral challenges.