Monitoring hemodynamic changes in stroke-affected muscles using near-infrared spectroscopy:

Journal of Rehabilitation and Assistive Technologies Engineering

MohammadMasoudiMotlagh¹ 

关键词: Oximetry;    stroke;    hemiparesis;    exercise therapy;    near-infrared spectroscopy;   

DOI  :  10.1177/2055668315614195

学科分类：工程和技术（综合）

来源: Sage Journals

【 摘 要 】

The oxygenation level of a tissue is an important marker of the health of the tissue and has a direct effect on performance. It has been shown that the blood flow to the paretic muscles of hemiparetic post-stroke patients is significantly reduced compared to non-paretic muscles. It is hypothesized that hemodynamic activity in paretic muscles is suppressed as compared to non-paretic muscles, and that oximetry can be used to measure this disparity in real-time. In order to test this hypothesis, a custom-made oximetry device was used to measure hemodynamic activity in the forearm extensor muscles in post-stroke patients’ paretic and non-paretic sides and in a control population during three exercise levels calibrated to the subject’s maximum effort. The change in oxygenation (ΔOxy) and blood volume (ΔBV) were calculated and displayed in real-time. Results show no apparent difference in either ΔOxy or ΔBV between control subjects’ dominant and non-dominant muscles. However, the results show a significant diff...

【 授权许可】

CC BY