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首页> 外文会议>Optical tomography and spectroscopy of tissue XII >Blood flow measurement of human skeletal muscle during various exercise intensities using diffuse correlation spectroscopy (DCS)
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Blood flow measurement of human skeletal muscle during various exercise intensities using diffuse correlation spectroscopy (DCS)

机译：使用扩散相关光谱法（DCS）在各种运动强度下测量人体骨骼肌的血流量

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We studied blood flow dynamics of active skeletal muscle using diffuse correlation spectroscopy (DCS), an emerging optical modality that is suitable for noninvasive quantification of microcirculation level in deep tissue. Seven healthy subjects conducted 0.5 Hz dynamic handgrip exercise for 3 minutes at intensities of 10, 20, 30, and 50 % of maximal voluntary contraction (MVC). DCS could detect the time-dependent increase of the blood flow response of the forearm muscle for continuous exercises, and the increase ratios of the mean blood flow through the exercise periods showed good correlation with the exercise intensities. We also compared blood flow responses detected from DCS with two different photon sampling rates and found that an appropriate photon sampling rates should be selected to follow the wide-ranged increase in the muscle blood flow with dynamic exercise. Our results demonstrate the possibility for utilizing DCS in a field of sports medicine to noninvasively evaluate the dynamics of blood flow in the active muscles.
机译：我们使用弥散相关光谱法（DCS）研究了活跃骨骼肌的血流动力学，弥散相关光谱法是一种新兴的光学方法，适用于深部组织微循环水平的无创定量分析。七名健康受试者以最大自愿收缩（MVC）的10％，20％，30％和50％的强度进行了0.5 Hz动态握力运动3分钟。 DCS可以检测到连续锻炼的前臂血流响应随时间的增加，并且整个锻炼期间的平均血流增加率与运动强度具有良好的相关性。我们还比较了从DCS检测到的血流响应与两种不同的光子采样率，发现应选择适当的光子采样率，以跟随动态运动引起的肌肉血流的广泛范围增加。我们的结果证明了在运动医学领域利用DCS进行无创评估活动肌肉中血流动力学的可能性。

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