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背景血压存在明显的季节性变化,运动有降低血压的效应,但运动习惯对静息血压和运动血压反应的季节性变化影响不明。目的探索不同运动习惯青年静息血压和运动血压反应的季节性变化。方法不同运动习惯的75位学生分别于冬春季测定静息血压和运动中血压。获取基础血压后,进行9min步行900m(100m/min)的运动,运动中每3min测定血压及心率。计算运动期血压及心率曲线下面积(AUC)。结果①该组学生冬季静息收缩压明显高于春季[(125.7±12.2)比(119.5±12.6)mmHg,P<0.05],舒张压也有增高的趋势,但心率甚为接近;②不同运动习惯两组春季静息收缩压和舒张压水平相似,但冬季不常运动组收缩压明显高于常运动组,舒张压也更高(均P<0.05);③无论冬春季节,不常运动组运动中舒张压增加(P<0.05),并有较大波动,而常运动组舒张压增加不明显。结论良好的运动习惯可以减轻青年人冬季血压增高的幅度,稳定运动中血压的变化。
There is a clear seasonal change in background blood pressure. Exercise has the effect of lowering blood pressure, but the influence of exercise habits on the seasonal changes of resting blood pressure and motor blood pressure is unknown. Objective To explore the seasonal changes of resting blood pressure and motor blood pressure in youths with different exercise habits. Methods Seventy-five students with different exercise habits measured resting blood pressure and exercise blood pressure during winter and spring. After obtaining the baseline blood pressure, a 900 m (100 m / min) walk for 9 minutes was performed, and blood pressure and heart rate were measured every 3 minutes during exercise. The area under the curve of exercise pressure and heart rate (AUC) was calculated. Results ① The resting systolic blood pressure in winter was significantly higher than that in spring [(125.7 ± 12.2) vs (119.5 ± 12.6) mmHg, P <0.05], diastolic blood pressure also increased, but the heart rate was close Systolic blood pressure and diastolic blood pressure were similar in both groups in spring, but systolic blood pressure in uncommon exercise group was significantly higher than that in common exercise group and diastolic pressure was higher in both groups (all P <0.05). ③In winter and spring, Diastolic blood pressure during exercise increased (P <0.05), and greater fluctuations, while exercise increased diastolic blood pressure was not obvious. Conclusions Good exercise habits can reduce the increase of young people’s winter blood pressure and stabilize the changes of blood pressure during exercise.