摘要
目的研究运动过程中人体骨骼肌组织肌氧含量的相对变化与心率、摄氧量和气体交换率间的关系。方法利用近红外肌氧监测系统,在体、实时监测中长跑运动员在跑台上运动时肌氧含量的相对变化,并同步测定和记录被试者的心率(HR)、摄氧量(VO2)、二氧化碳呼出量(VCO2)和气体交换率(RER)等参数。结果随着运动强度的改变,上述所测参数均呈现规律性的变化。在0.01水平上,氧合血红蛋白(HbO2)含量的相对变化与HR、VO2和RER间均具有高度的相关性。结论本研究为无损监测和评定运动员的生理机能状况、掌握训练强度和评价训练效果引入新的测试技术和生物学监测指标。
Objective To study the relationship between respiration exchange ratio (RER) and tissue oxygen content in human skeletal muscle. Method Using a portable tissue oximeter based on near-infrared spectroscopy (NIRS), the relative changes of skeletal muscle oxygen content were measured non-invasively and in vivo when healthy volunteers were performing an incremental intensity running protocol.The results were compared with heart rate (HR), V O 2, V CO 2, and RER. Result In the experiment, the change in skeletal muscle oxygenation content of the volunteers was regular and has a significant close relationship to HR, V O 2 and RER (P=0.01). Conclusion It shows that NIRS is a new photonic technology which provides a measurable biomedical parameter for the evaluation of athlete’s physique and training effect. It offers reference for monitoring and assessing training effect in vivo, real-time and non-invasively.
出处
《航天医学与医学工程》
CAS
CSCD
北大核心
2005年第1期28-31,共4页
Space Medicine & Medical Engineering
基金
国家自然科学基金(67178028)
湖北省教育厅自然科学类重点项目(2004D002)
关键词
近红外光谱技术
无损监测
肌氧含量
心率
气体交换率
near infrared spectroscopy
non-invasive monitor
muscle oxygen content
heart rate
respiration exchange ratio
