| 近红外光谱术测量肌氧含量拐点方法的比较 |
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| 引用本文： | 田庆平,张中兴,王帮德,龚辉.近红外光谱术测量肌氧含量拐点方法的比较[J].北京体育大学学报,2011,34(1):58-60. |
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| 作者姓名： | 田庆平 张中兴 王帮德 龚辉 |
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| 作者单位： | 华中科技大学武汉光电国家实验室(筹)生物医学光子学研究部; |
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| 基金项目： | 教育部“长江学者与创新团队发展计划” |
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| 摘 要： | 随着运动强度逐渐增大,近红外光谱术测量的肌氧含量发生非线性变化的"拐点"可用于评价无氧阈。对赛艇运动员做渐增负荷运动时的肌氧含量和呼吸参数的变化进行了研究,旨在比较两种确定肌氧拐点的方法:1)基于氧合血红蛋白和还原血红蛋白的相对浓度差ΔO2Hb-HHb]的变化趋势进行判断;2)利用还原血红蛋白的相对浓度ΔHHb]的变化趋势确定。研究发现,这两种方法确定的肌氧拐点都与通气无氧阈显著相关(r=0.980,0.965;p<0.001);且两者间高度相关(r=0.985;p<0.001),无统计差异(p>0.05)。结果表明,这两种方法确定的肌氧拐点都可用于评价无氧阈。
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| 关 键 词： | 近红外光谱术 肌氧 拐点 无氧阈 |
Comparison of Methods for Breaking Point of Muscle Oxygenation Monitored by Near-Infrared Spectroscopy |
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| TIAN Qing-ping,ZHANG Zhong-xing,WANG Bang-de,GONG Hui.Comparison of Methods for Breaking Point of Muscle Oxygenation Monitored by Near-Infrared Spectroscopy[J].Journal of Beijing Sport University,2011,34(1):58-60. |
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| Authors: | TIAN Qing-ping ZHANG Zhong-xing WANG Bang-de GONG Hui |
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| Institution: | TIAN Qing-ping,ZHANG Zhong-xing,WANG Bang-de,GONG Hui(Britton Chance Center for Biomedical Photonics,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,Hubei China) |
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| Abstract: | During incremental exercise,the breaking point(Bp) of muscle oxygenation(Mox) kinetics monitored by near-infrared spectroscopy(NIRS) can be used to evaluate anaerobic threshold(AT).The Mox changes and respiratory responses during incremental rowing exercise were investigated to compare two methods to identify the Mox Bp: 1)based on the trends in the difference between the relative concentration changes in oxygenated hemoglobin(O2Hb) and deoxygenated hemoglobin(HHb);2)based on the patterns of the relative co... |
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| Keywords: | near-infrared spectroscopy muscle oxygenation breaking point anaerobic threshold |
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