42式太极拳对中老年知识分子心血管功能的影响

Effects of 42-type shadowboxing on cardiovascular functions in middle and old intellectuals

目的 :评价42式太极拳对中老年知识分子心血管功能的影响。方法 :对73名中老年知识分子从事1年系统的42式太极拳锻炼前后体重、心电图、血压、心血管功能参数等指标进行比较。结果 :与训练前相比受试者肺活量显著提高、体重降低、收缩压略降低、舒张压略升高、心泵功能和微循环功能明显改善、心电图改善。太极拳运动时心肌耗氧量增加、血液粘度升高、冠脉缺血阈值降低。结论 :长期从事太极拳运动对中老年知识分子心血管功能有良好的影响 ,但太极拳运动易造成心肌相对缺血。

Objective:The purpose of this study was to evaluate the effects of 42-type shadowboxing on cardiovascular functions in middle and old intellectuals.Methods:The present study has been carried out by comparing the indexes(body weight,vital capacity,electrocardiograms,blood pressure and cardiovascular function indexes) before and after one year systemic 42-type shadowboxing training in 73 middle and old intellectuals.Results:Comparing with before training,the vital capacity of subjects increases and body weight decreases,systolic pressure falls and diastolic pressure rises slightly,the cardiac pump function and microcirculation function improves obviously,and electrocardiograms improve slightly.But myocardium oxygen consumption and blood viscosity increases and the threshold of myocardial ischemia falls during doing shadowboxing.Conclusion :Shadowboxing could improve cardiovascular functions of middle and old intellectuals,but shadowboxing training may induce relative myocardial ischemia.