肌氧饱和度与全身耐力的关联性研究（一）
摘 要:目的:探讨肌氧饱和度与全身耐力之间是否存在一定的相关性。方法:选取 9 名排球运动员，6 名手球运动员，3 名橄榄球运动员，8 名足球运动员为研究对象，首先测量出受试者的肌氧饱和度 100%值和 0%值，然后进行运动有氧能力测试，运动中通过运动心肺功能测试系统和组织氧无线监测系统实时连续监测呼气成份和股外侧肌氧饱和度的变化。采集有氧代谢能力的相关参数及肌氧饱和度的相关参数，然后对二者进行相关性分析。结果:在递增跑过程中，随着速度的递增，受试者股外侧肌氧饱和度逐渐下降并达到一个最低值，之后不在随着速度的增加而下降。阻断血流蹲起过程中肌氧饱和度最低值显著低于递增跑过程中肌氧饱和度最低值。受试者的肌氧饱和度 0% 值(0% rSO 2 )、肌氧饱和度 100%值与 0%值的差值(100% rSO 2 -0% rSO 2 )以及变化率(100% rSO 2 -0%rSO 2 )/100% rSO 2 与有氧代谢能力指标之间存在明显的相关性。结论:肌氧饱和度 0%值显著低于递增跑至力竭过程中肌氧饱和度最低值，进一步说明采用阻断血流并运动的方式得到的肌氧饱和度 0%值更接近理论上的最低值;肌氧饱和度 0% 值越小，其有氧代谢能力越好，肌氧饱和度可以用来反映机体有氧代谢能力;机体有氧代谢能力的高低，在很大程度上取决于肌肉耐力的好与差。
Moxy近红外光无线肌氧测试系统
Relevance between muscle oxygen saturation and systemic endurance
CAI Qian - xin 1 ，WEI Wen - zhe 2 ，ZHAO Zhi - guang 2 ，HUO He - wei 3(1. School of P. E. ，Soochow University，Suzh 100075，China;3. Maochen Primary School of Xiyangdian Town，Zhumadian 463404，Henan，China)
Abstract:Objective:To investigate whether there is
a certain correlation between muscleoxygen saturation and body
endurance. Methods:Select 9 volleyball players，6 handballathletes，3
football players，8 football players for the study. Muscle oxygen
saturation value of100% and 0% of the subjects were measured，and then
aerobic capacity was tested. The initialspeed treadmill set at 9
km/h，then exercise with increasing 1 km/h every minute linearincrements
velocity until exhaustion，real - time continuously monitoring the
changes of thebreath composition and the vastus lateralis muscle oxygen
saturation during exercising bycardiopulmonary exercise testing system
and tissue oxygen wireless monitoring system. Collectrelated parameters
of aerobic capacity and muscle oxygen saturation parameters，and then
bothcorrelation analysis. Results:In the incremental - load process，with
the rate increasing，vastus lateralis muscle oxygen saturation of
subjects decreased and reached a minimum value，thereafter not declining
with speed increasing. Muscle oxygen saturation minimum value duringthe
squat with blocking blood flow was significantly lower than the minimum
value during ofincremental - load run. There is a significant
correlation between muscle oxygen saturationvalue of 0% (0% rSO 2 )，and
the difference between muscle oxygen saturation value of 100%to muscle
oxygen saturation value of 0% (100% rSO 2 -0% rSO 2 )and changes in rate
(100%rSO2 - 0% rSO 2 )between the presence / 100% rSO 2 and aerobic
capacity indicators.Conclusions:Muscle oxygen saturation of 0% was
significantly lower than the lowest muscleoxygen saturation during
incremental - load run to exhaustion，which further illustrates
thatmuscle oxygen saturation of 0% get closer to the theoretical value
of 0% value by the way ofblocking blood flow and movement. The smaller
the muscle oxygen saturation 0% value，thebetter their aerobic
capacity，muscle oxygen saturation can be used to reflect the body’s
aerobiccapacity. The level of the body’s aerobic capacity depends
largely on muscular endurance.
Key words:muscle oxygen saturation;body endurance;correlation
肌氧饱和度与全身耐力的关联性
全身耐力决定于两个方面，即肌肉耐力和心肺耐力。心肺功能是有氧耐力素质的重要生理基础。良好的心肺功能是运动中供氧充足的保证。心肺功能的改善对于机体有氧代谢能力即全身耐力的提高起着至关重要的作用。肌肉耐力主要决定于慢肌纤维比例、骨骼肌毛细血管密度、线粒体数量等因素，而这些因素均与肌肉内氧浓度有关，肌氧饱和度可以反映肌肉内的氧浓度。笔者〔1〕 在前期已经探究过，肌氧饱和度与肌肉耐力之间存在很大的相关性，因此，本研究意在进一步探究肌氧饱和度与全身耐力的关系，以期通过肌氧饱和度的相关指标来反应全身耐力的水平。
1 研究对象与方法1. 1 研究对象排球运动员 9 名，手球运动员 6 名，橄榄球运动员3 名，足球运动员 8 名，了解实验对象的一般情况，包括年龄 20. 3 ±6 岁，身高 176. 1 ±5. 6 cm，体重 68. 4 ±9. 3 kg，训练年限 3 ± 2. 4 年，所有受试者近期没有肌肉损伤情况，测试前受试者不能有剧烈的运动。
1. 2 研究方法
1. 2. 1 待测部位的选择
股外侧肌的确定:使受试者保持自然站立姿势，腿部放松，根据人体的解剖学特点找到股骨外侧髁和髂前上棘两点的位置，取两点连线的下 1/3 处即为待测点的位置。
1. 2. 2 肌氧饱和度的测定
确定股外侧肌位置之后，将肌氧饱和度仪的探头的发射孔对准待测点放置，并且使探头的轴线与股外侧肌平行，然后在其上面放上遮光布，再用弹力绷带将探头全部缠绕起来，防止漏光以及外界光线的干扰(F. Billaut，2013);松紧度要合适，防止实验过
中探头移位，然后打开模块开关即可监测股外侧肌氧饱和度变化情况，通过无线传输设备将数据导入电脑。
