人力短臂离心机训练后心血管功能的改变
http://www.100md.com
2005年2月26日
人力短臂离心机训练后心血管功能的改变
孙喜庆 姚永杰 杨长斌 冯岱雅 吴燕红
(710032 西安，第四军医大学航空航天医学系航空航天生物动力学教研室)
【摘要】 目的 观察人力短臂离心机训练后心血管功能的改变，探讨人力短臂离心机的训练效果。 方法 9名健康男性青年利用人力短臂离心机进行训练，转速为30～34 r/min，持续时间为5 min，1次/d，连续训练7 d。测量心血管功能的变化。 结果 人力短臂离心机训练3 d后，心率显著降低(P<0.05)，左室射血时间(LVET)显著延长(P<0.01)；训练7 d后，心率进一步降低(P<0.01)，左室射血时间显著延长(P<0.05)，每搏量显著增加(P<0.05)。 结论 人力短臂离心机连续训练7 d后可明显改善心脏泵血功能。
【关键词】 加速度； 心血管系统； 人力短臂离心机； 训练
【中图分类号】 R852.2
Change of cardiovascular function after training with selfpowered short arm human centrifuge SUN Xiqing, YAO Yongjie, YANG Changbin, et al. Department of Aerospace Biodynamics, Fourth Military Medical University, Xi'an 710032, China
【Abstract】 Objective To explore the change of cardiovascular function after training with self powered short arm human centrifuge. Methods Nine healthy male volunteers underwent selfpowered short arm human centrifuge training 5 min per day with rotary speed of 30～34 r/min for 7 days. Cardiovascular function was measured before and after training. Results Heart rate (HR) decreased significantly while left ventricular ejection time (LVET) increased significantly after 3 d training, and the changes of HR and LVET were more obvious after 7 d training. Stroke volume increased significantly only after 7 days training. Conclusions It suggests that cardiac pumping function could be improved after 7 days training with selfpowered short arm human centrifuge. The selfpowered short arm human centrifuge may be used as a countermeasure to the effect of microgravity.
【Key words】 Acceleration; Cardiovascular system; Selfpowered short arm human centrifuge; Training, http://www.100md.com
孙喜庆 姚永杰 杨长斌 冯岱雅 吴燕红
(710032 西安，第四军医大学航空航天医学系航空航天生物动力学教研室)
【摘要】 目的 观察人力短臂离心机训练后心血管功能的改变，探讨人力短臂离心机的训练效果。 方法 9名健康男性青年利用人力短臂离心机进行训练，转速为30～34 r/min，持续时间为5 min，1次/d，连续训练7 d。测量心血管功能的变化。 结果 人力短臂离心机训练3 d后，心率显著降低(P<0.05)，左室射血时间(LVET)显著延长(P<0.01)；训练7 d后，心率进一步降低(P<0.01)，左室射血时间显著延长(P<0.05)，每搏量显著增加(P<0.05)。 结论 人力短臂离心机连续训练7 d后可明显改善心脏泵血功能。
【关键词】 加速度； 心血管系统； 人力短臂离心机； 训练
【中图分类号】 R852.2
Change of cardiovascular function after training with selfpowered short arm human centrifuge SUN Xiqing, YAO Yongjie, YANG Changbin, et al. Department of Aerospace Biodynamics, Fourth Military Medical University, Xi'an 710032, China
【Abstract】 Objective To explore the change of cardiovascular function after training with self powered short arm human centrifuge. Methods Nine healthy male volunteers underwent selfpowered short arm human centrifuge training 5 min per day with rotary speed of 30～34 r/min for 7 days. Cardiovascular function was measured before and after training. Results Heart rate (HR) decreased significantly while left ventricular ejection time (LVET) increased significantly after 3 d training, and the changes of HR and LVET were more obvious after 7 d training. Stroke volume increased significantly only after 7 days training. Conclusions It suggests that cardiac pumping function could be improved after 7 days training with selfpowered short arm human centrifuge. The selfpowered short arm human centrifuge may be used as a countermeasure to the effect of microgravity.
【Key words】 Acceleration; Cardiovascular system; Selfpowered short arm human centrifuge; Training, http://www.100md.com