高原世居藏族健康成人心率及心率变异性分析  

Changes of Heart Rate Variability in Native Tibetan Healthy Adults at High Altitude

作　　者：于伊[1] 柳茵[1] 栗淑兰[1] 毛辉青[1] 李琳[1] 樊世明[1] 梅峰[1] 刘连军[1] 严鹏仲[1] 任明[1] 马艳梅[1] 

机构地区：[1]青海医学院附属医院心内科,810001

出　　处：《高原医学杂志》2005年第2期26-28,共3页Journal of High Altitude Medicine

摘　　要：目的:对高原世居藏族健康成人进行心率及心率变异时域分析,研究高原世居藏族的心率特点。方法:对100例高原世居藏族健康成人、75例西宁地区藏族健康成人和100例西宁地区汉族健康成人进行全程24小时动态心电图检查,分析心率指标(24小时总心搏数、24小时最小心率、24小时最大心率和每分平均心率)和心率变异性(Heartratevariability,HRV)时域指标(SDNN、SDANN、SDNNIdex、RMSSD和PNN50%)。结果:高原世居藏族健康成人心率指标:24小时总心搏数、24小时最大心率、每分平均心率均低于西宁地区藏、汉族健康成人。高原世居藏族健康成人的心率变异时域指标RMSSD、PNN50%高于西宁地区藏、汉族健康成人。结论:高原世居藏族健康成人心率偏慢,世居藏族迷走神经活性略高。Objective. To characterize the feature of heart rate and its variability in native Tibetan healthy adults at high altitude. Methods. We designed three group in this study, 100 subjects in the native Tibetan group, 75 subjects in the Xining Tibetan group and 100 in the Han group. The Holter monitor ECG was performed in 24 hours and the cardiac index, SDNN,SDANN,SDNNIdex,RMSSD 和 PNN50% were assayed. Results. The cardiac index was lower in the native Tibetan group than that in the xining Tibetan group and the Han group. RMSSD and PNN50% were higher in the native Tibetan group than those in the xining Tibetan and the Han group. Conclusion. The native healthy Tibetan adults have a lower heart rate and increased activity of vagus nerve.

关 键 词：高原 世居藏族 健康成人 动态心电图 心率 心率变异性 

分 类 号：R339.5[医药卫生—人体生理学]