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目的:观察不同体质指数(BMI)的患者行平板运动试验时心脏变时性变化。方法:根据BMI将333例患者分为对照组(BMI<25)224例,肥胖组(BMI≥25)109例。统一行平板运动实验检查,分别比较2组之间心脏变时性的差别。结果:肥胖组患者运动结束后第1分钟心率下降减慢,运动峰值最大代谢当量减小,与对照组相比差异有统计学意义(P<0.05)。结论:肥胖患者心脏变时性变化异常,提示肥胖患者心脏自主神经功能紊乱。
OBJECTIVE: To observe the changes of cardiac time during treadmill exercise test in patients with different body mass index (BMI). Methods: According to BMI, 333 patients were divided into control group (BMI <25), 224 cases, obesity group (BMI≥25), 109 cases. Uniform line of flat exercise test, respectively, compared the difference between the two groups of heart time. Results: In the obese group, the decrease of heart rate at 1 minute after exercise ended and the maximal metabolic peak of the peak of exercise decreased. Compared with the control group, the difference was statistically significant (P <0.05). Conclusion: The abnormal change of the heart in obese patients indicates the autonomic dysfunction of heart in obese patients.