运动训练与心血管压力感受器反射敏感性的关系

Physical training and baroreflex sensitivity

目的通过测量志愿者连续3个月有氧和无氧训练中心血管压力感受器反射敏感性（BRS），了解运动训练对BRS的影响规律，为健康体检人群制定合理科学的训练方案提供帮助。方法16名男性健康志愿者，随机分为两组，其中有氧与无氧组合训练组（组1）7名，单纯有氧训练组（组2）9名，共进行12周训练。在训练前、训练的第4、8、12周末进行被动直立位耐力试验检查。观察的主要指标有常规血压、心率和BRS指标。结果组1BRS指标在平卧位和恢复期差异有统计学意义（P〈0．05），训练后较训练前增加，在直立位各时段没有统计学差异；组2志愿者无论是平卧位、直立位还是恢复期，其BRS指标均无统计学差异，但志愿者平卧位BRS均值有变小的趋势。组1收缩压在平卧10min，训练后较训练前低。结论有氧与无氧的组合训练能够增强人体BRS，而单纯有氧训练可能会消弱人体心血管压力感受器调节能力。

Objective To study the effects of physical training on baroreflex sensitivity （BRS） by monitoring finger arterial pressure among volunteers who had experienced three-months＇ aerobic or anaerobic exercises. Methods A total of 16 healthy men were divided into the aerobic exercise ＋ anaerobic exercise group （group A, n = 7 ） and aerobic exercise group （group B, n = 9 ）. Each subject was trained for 12 weeks. Head-up tilt （HUT） table test was performed before and 4,8, and 12 weeks after training. Blood pressure, finger arterial pressure and electrocardiogram （ECG） were compared between the two groups. Results The BRS was significantly increased after training in group A, although no changes were found in group B. Conclusion Three-months＇ aerobic exercise ＋ anaerobic exercise seems to enhance the BRS; however,three-months＇ aerobic exercise may decrease the BRS.