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|本期目录/Table of Contents|

短臂离心机训练时前庭刺激对心血管功能的影响

《心脏杂志》[ISSN:1009-7236/CN:61-1268/R]

期数:
2017年第1期
页码:
93-097
栏目:
临床研究
出版日期:
2016-10-05

文章信息/Info

Title:
Effect of vestibular stimulation on cardiovascular function during short-arm centrifugation
作者:
刘 达1; 高 原2; 赵吉林1; 孔 明1; 王永春2; 孙喜庆2
（第四军医大学:1.2011级学员队，2.航空航天医学系航空航天生物动力学教研室，西安 710032）
Author(s):
LIU Da1;  GAO Yuan2;  ZHAO Ji-lin1;  KONG Ming1;  WANG Yong-chun2;  SUN Xi-qing2
(1.2011 Grade, 2.Department of Aerospace Biodynamics, School of Aerospace Medicine, Fourth Military Medical University, Xi’an 710032, Shaanxi, China)
关键词:
心血管功能; 前庭刺激; 短臂离心机; 训练
Keywords:
cardiovascular function;  vestibular stimulation;  short-arm centrifuge;  training
分类号:
R852.21
DOI:
-
文献标识码:
A
摘要:
目的 探讨短臂离心机训练过程中增加前庭功能刺激对心血管功能的影响。方法 9名被试者分别完成不转头和间断左右转头45度两次人体短臂离心机暴露，足水平2 Gz，持续10 min，记录实验过程中被试者血压、心率等变化并进行心率变异性分析，同时进行前庭功能评价。结果 在短臂离心机暴露复合前庭刺激时，被试者心率、舒张压、心率变异性低频功率、低频功率/高频功率较暴露前均显著升高（P<0.05，舒张压P<0.01），心率变异性高频功率显著降低（P<0.05）；与单独短臂离心机暴露相比，舒张压显著升高（P<0.05），低频功率/高频功率呈现升高趋势，但未达到显著水平。结论 短臂离心机暴露复合前庭刺激可增强心脏交感神经兴奋性，改善心血管功能，有助于提高训练效果。
Abstract:
AIM To observe the effect of vestibular stimulation by head movement on cardiovascular functions during short-arm centrifugation. METHODSNine subjects were exposed to short-arm centrifuge of 2 Gz at feet level for 10 min with head still and intermittent separate head-turns. Heart rate, blood pressure and heart rate variability (HRV) were measured and vestibular function was evaluated during exposure. RESULTSCompared to those pre-exposure, heart rate, diastolic pressure, low frequency of HRV and the ratio of low frequency to high frequency (LH/HF) decreased significantly in subjects with head-turns during short-arm centrifugation. Diastolic pressure was significantly higher, whereas LH/HF had a tendency to increase in the subjects with head-turns compared with those in the subjects with head still during short-arm centrifugation. CONCLUSIONShort-arm centrifugation combined with vestibular stimulation enhances the excitability of cardiac sympathetic nerves and promotes cardiovascular functions, thus improving training efficiency.

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备注/Memo

备注/Memo:
收稿日期：2015-12-14.基金项目：全军后勤科研重大项目资助（AWS12J003-01）
通讯作者：孙喜庆，教授，主要从事重力生理与心血管生理研究 Email:sunxiqing@fmmu.edu.cn
作者简介：刘达，本科生 Email：3052011012@studengt.fmmu.edu.cn 共同第一作者：高原，讲师，硕士Email：gaoyuan1109@hotmail.com
更新日期/Last Update: 2016-10-09