A new method of active muscle oxygen consumption at multiple sites

我们假设，在运动过程中，肌肉血红蛋白和肌红蛋白脱氧(HHB)动力学存在显著的异质性。本研究的目的是测量人体对氧气输送和氧气利用匹配的反应。这些结果表明，肌肉去氧量和时间分布的区域异质性是氧输送和氧利用匹配的不同反应的结果。然而，整体肌肉VO2动力学速度与HHb的异质性之间的相关性较差。

We hypothesized that, during exercise, substantial heterogeneity of muscle hemoglobin and myoglobin deoxygenation(HHb) dynamics exists. The purpose of this study was to measure the responses of the matching of O_2 delivery and O_2 utilization in humans. The present results suggest that regional heterogeneity in the magnitude and temporal profile of muscle deoxygenation is a consequence of differential responses of the matching of O_2 delivery and O_2 utilization. However, there was a poor relationship between the speed of overall muscle VO_2 kinetics and the heterogeneity of HHb.