摘要
目的 :比较等张运动和抗阻运动对心血管反应及儿茶酚胺激素的影响 ,探讨采用心率作为以等长运动形式为主的抗阻运动的强度指标的可能性。方法 :采用相同靶心率和相同运动时间对 8例健康男性分别进行等张运动和交替式抗阻运动 ,观察运动前后的心率、血压及儿茶酚胺的应激反应。结果 :两种运动后收缩压和两项乘积均显著增高 ,等张运动时脉压差明显增大 ,抗阻运动则表现为平均动脉压的升高 ,肌肉收缩力与心率呈直线性相关。去甲肾上腺素和多巴胺在两种运动后均显著增高 ,抗阻运动时升高尤为明显。运动前后血浆肾上腺素均无显著改变。结论 :心率作为运动强度的指标也适用于交替式抗阻运动 。
Objective: To compare the responses of cardiovascular and hormonal medicine to isotonic and resistance exercises and to explore the possibility of using heart rates as an index of exercise intensity for resistance exercises. Method:Isotonic and alternant resistance exercises were carried out in eight health men with target heart rates and equal exercise times. Both exercises-induced changes in heart rate, blood pressure and catecholamines were observed. Result: Systolic blood pressures (SBP) and rate pressure product (RPP) significantly increased after both kinds of exercises. Pulse pressure (PP) was augmented significantly in isotonic exercise, but mean arterial pressure (MAP) rose remarkably and maximal voluntary constractions (MVC%) was correlated directly with the heart rates in resistance exercise. The increase in plasma noradrenaline and dopamine induced by exercise were more remarkable in resistance exercise than in isotonic exercise. Little changes in plasma adrenaline were observed after both exercises. Conclusion: Heart rate as usually an index of intensity in isotonic exercise and is equal to alternant resistance exercise. The different sorts and intensity of exercise may directly influence secreting degrees of plasma catecholamines.
出处
《中国康复医学杂志》
CAS
CSCD
2002年第1期26-28,共3页
Chinese Journal of Rehabilitation Medicine
关键词
等张运动
抗阻运动
心血管反应
儿茶酚胺
康复训练
isotonic exercise
resistance exercise
cardiovascular response
catecholamine
