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心率变异性（ＨＲＶ）分析是一种无创性检测心脏自主神经张力的方法，对指导疾病的治疗及某些疾病的预后判断有重要价值，它受多种因素的影响。ＨＲＶ测定由于操作方法、仪器、指标不尽相同，缺乏可比性，目前国内尚缺乏统一的正常值，为此，中华心血管病杂志编委会ＨＲＶ专题对策组于１９９７ 年参考了欧美两会拟定的标准化方案［１］ 制定了全国ＨＲＶ分析研究协作组研究方案，并几经修改完善［２］ 。作为该协作成员之一，该研究进行了健康人的ＨＲＶ时域和频域指标的测定。初步探讨了性别、年龄、昼夜等因素对健康人ＨＲＶ的影响。
Heart rate variability (HRV) analysis is a noninvasive method of detecting cardiac autonomic nervous tension. It is of great value in guiding the treatment of diseases and prognosis of certain diseases. It is influenced by many factors. HRV determination of the operation method, equipment, indicators vary, the lack of comparability, the current domestic is still a lack of uniform normal, therefore, the Chinese cardiovascular disease editorial board HRV special measures group in 1997 with reference to Europe and the United States drafted The standardization program [1] developed a national HRV analysis and research collaboration group research program, and after several improvements [2]. As part of this collaborative effort, the study performed the HRV time and frequency domain measurements of healthy individuals. Preliminary study of gender, age, day and night and other factors on the impact of healthy people HRV.