目的:探讨急性太极拳运动对原发性高血压患者血压的影响及其可能的作用机制.方法:以原发性高血压患者14例为研究对象,采用自身对照法,用动态血压测量仪,观察休息口和运动口24 h动态血压变化.测定安静血清一氧化氮(NO)浓度和运动后即刻血清一氧化氮的反应性变化;测定运动结束后即刻,24 h,48 h 血清总胆固醇(TC)、总三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆同醇(LDL-C)的动态变化.结果:与运动前相比,一次急件太极拳运动后,原发性高血压患者收缩压和舒张压都呈下降趋势,舒张压下降的程度更加明显(P<0.05),且更为持久.这种降压效应可持续18 h以上,24 h后基本恢复到运动前水平;运动后即刻,血清NO浓度都显著升高(P<0.05);TC,LDL-C浓度明显下降(P<0.05),HDL-C浓度显著上升(P<0.05);运动后24 hHDL-C浓度持续升高(P<0.01),TG浓度明显下降(P<0.05),LDI-C回升并超过运动前水平;48 h后TC,TG,LDL-C的浓度基本恢复运动前水平,HDL-C浓度仍然较高,但与运动前相比没有到显著性差异.结论:一次急性太极拳运动使血脂产生良好的变化,由于一次急性太极拳运动对血脂的良好影响可持续48 h,推荐原发性高血压患者每隔一天运动一次;建议在观察运动对血脂影响时,注意采血时间的把握,以区分急性效应和长期效应.
Effects of single acute Taijiquan exercise on essential hypertension
AIM:To investigate the effect of single acute Taijiquan exercise on essential hypertension and its possible mechanism.METHODS:Forteen hypertension patients were chosen as subjects,pre-and post-acute exercise blood pressure and lipid profile were measured.RESULTS:Single session of Taijiquan exercise decreased blood pressure of Hypertensive patients obviously.The trend of decrease of DBP is more obvious(P<0.05)and lasts longer too,this kind of efficacy maintains over 18 h and recovered into the preceding level in 24 h.Tis effect is independent of ordinary alternation of blood pressure,as confirms exercise-induced result.This finding indicates the benefit of single session of practicing Taijiquan on hish pressure lasts for nearly a day.Concentration of serum TC,LDL-C decreased(P<0.05),concentration of HDL-C and concentration of serum NO remarkably increases(P<0.05)immediately after single session of Taijiquan exercise;After 24 h concentration of HDL-C continues to increase(P<0.01),the concentration of TG is obviouslv decreases(P<0.05),the LDL-C concentration rises to overtake the preceding level;The concentration of TC,TG.LDL-C is resumed the preceding level essentially after 48 h,however.HDL-C's concentration is yet high,but compared with pie-exercise,can not reach the level of significant difference.CONCLUSION:Effect of single acute Taijiquan exercise on hypertension lasts nearly one day and its effect on lipid profile last almost 48 h,which suggests controlling time of taking blood sample is certainly importance in order to distinguish acute effect and long-term effect.