间歇性低氧暴露适应过程中运动对人体甲襞微循环影响的实验研究

The Effect of Sports on Nail Microcirculation during Intermittent Hypoxia Exposure

研究目的 :观察间歇性低氧暴露适应过程中 ,人体甲襞微循环的时序性变化及探讨可能机制。研究方法 :7名足球专业学生 ,每天在低氧室 (O2 % :1 5 .4 % ,CO2 %〈5 0 0 0ppm ,温度 2 3± 3℃ ,湿度 6 3± 5 % )内休息1 0h ,每周 7d ,共 4周。分别测试常氧常压、急性低氧暴露、低氧 2周、4周后安静时和定量运动负荷后甲襞微循环的变化。结果表明 :急性低氧暴露后 ,甲襞微环出现明显的代偿性变化 ;从甲襞微循环流态积分、总积分时序性变化的角度来看 ,间歇性低氧暴露 4周的效果要优于间歇性低氧暴露 2周。

To investigate the effect of IHE on nail microcirculation,seven students majoring in football have a rest in a hypoxia apartment (O 2%: 15.4%, CO 2%<5000ppm, the temperature :23±3℃ and the humidity: 63±5%>) for 10 hours per day for 4 weeks consecutively. We observe the changes of nail microcirculation after acute two weeks,four weeks of IHE during rest and after a quantitative load exercise test, separately. It is concluded that: 1) After the acute IHE, significant changes of nail microcirculation appear. 2) Considering the changes of the flow integral and overall integral, the effect of four weeks of IHE is better than two weeks of IHE.