摘 要:目的:探討肌氧飽和度與全身耐力之間是否存在一定的相關性。方法:選取 9 名排球運動員,6 名手球運動員,3 名橄欖球運動員,8 名足球運動員為研究對象,首先測量出受試者的肌氧飽和度 100%值和 0%值,然后進行運動有氧能力測試,運動中通過運動心肺功能測試系統和組織氧無線監測系統實時連續監測呼氣成份和股外側肌氧飽和度的變化。采集有氧代謝能力的相關參數及肌氧飽和度的相關參數,然后對二者進行相關性分析。結果:在遞增跑過程中,隨著速度的遞增,受試者股外側肌氧飽和度逐漸下降并達到一個最低值,之后不在隨著速度的增加而下降。阻斷血流蹲起過程中肌氧飽和度最低值顯著低于遞增跑過程中肌氧飽和度最低值。受試者的肌氧飽和度 0% 值(0% rSO 2 )、肌氧飽和度 100%值與 0%值的差值(100% rSO 2 -0% rSO 2 )以及變化率(100% rSO 2 -0%rSO 2 )/100% rSO 2 與有氧代謝能力指標之間存在明顯的相關性。結論:肌氧飽和度 0%值顯著低于遞增跑至力竭過程中肌氧飽和度最低值,進一步說明采用阻斷血流并運動的方式得到的肌氧飽和度 0%值更接近理論上的最低值;肌氧飽和度 0% 值越小,其有氧代謝能力越好,肌氧飽和度可以用來反映機體有氧代謝能力;機體有氧代謝能力的高低,在很大程度上取決于肌肉耐力的好與差。
Moxy近紅外光無線肌氧測試系統
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
肌氧飽和度與全身耐力的關聯性
全身耐力決定于兩個方面,即肌肉耐力和心肺耐力。心肺功能是有氧耐力素質的重要生理基礎。良好的心肺功能是運動中供氧充足的保證。心肺功能的改善對于機體有氧代謝能力即全身耐力的提高起著至關重要的作用。肌肉耐力主要決定于慢肌纖維比例、骨骼肌毛細血管密度、線粒體數量等因素,而這些因素均與肌肉內氧濃度有關,肌氧飽和度可以反映肌肉內的氧濃度。筆者〔1〕 在前期已經探究過,肌氧飽和度與肌肉耐力之間存在很大的相關性,因此,本研究意在進一步探究肌氧飽和度與全身耐力的關系,以期通過肌氧飽和度的相關指標來反應全身耐力的水平。
1 研究對象與方法1. 1 研究對象排球運動員 9 名,手球運動員 6 名,橄欖球運動員3 名,足球運動員 8 名,了解實驗對象的一般情況,包括年齡 20. 3 ±6 歲,身高 176. 1 ±5. 6 cm,體重 68. 4 ±9. 3 kg,訓練年限 3 ± 2. 4 年,所有受試者近期沒有肌肉損傷情況,測試前受試者不能有劇烈的運動。
1. 2 研究方法
1. 2. 1 待測部位的選擇
股外側肌的確定:使受試者保持自然站立姿勢,腿部放松,根據人體的解剖學特點找到股骨外側髁和髂前上棘兩點的位置,取兩點連線的下 1/3 處即為待測點的位置。
1. 2. 2 肌氧飽和度的測定
確定股外側肌位置之后,將肌氧飽和度儀的探頭的發射孔對準待測點放置,并且使探頭的軸線與股外側肌平行,然后在其上面放上遮光布,再用彈力繃帶將探頭全部纏繞起來,防止漏光以及外界光線的干擾(F. Billaut,2013);松緊度要合適,防止實驗過
中探頭移位,然后打開模塊開關即可監測股外側肌氧飽和度變化情況,通過無線傳輸設備將數據導入電腦。