Quantification of Tissue Oxygen Saturation in the Vastus Lateralis Muscle of Chronic Stroke Survivors during a Graded Exercise Test.
Quantification of Tissue Oxygen Saturation in the Vastus Lateralis Muscle of Chronic Stroke Survivors during a Graded Exercise Test.
复制标题
分级运动测试期间慢性中风幸存者股外侧肌组织氧饱和度的量化。
DOI：
10.1097/cpt.0000000000000208
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Durand,MatthewJ
中科院分区：
文献类型：
--
作者：
Hyngstrom,AllisonS;Nguyen,JenniferN;Uhrich,ToniD;Wright,MichaelT;Gutterman,DavidD;Schmit,BrianD;Durand,MatthewJ
Purpose:This study examined tissue oxygen saturation (StO 2) of the vastus lateralis (VL) muscles of chronic stroke survivors during a graded exercise test (GXT). We hypothesized that the reduction in StO 2 will be blunted in the paretic versus nonparetic VL during a maximum effort GXT.Methods:Chronic stroke survivors performed a GXT, and StO 2 of the VL in each leg was measured using near-infrared spectroscopy. Twenty-six stroke survivors performed a GXT.Results:At rest, there was no difference in StO 2 between the paretic and nonparetic VL (65±9% vs 68±7%, respectively, P=. 32). The maximum change in StO 2 from rest during the GXT was greater in the nonparetic versus the paretic VL (− 16±14% vs− 9±10%, respectively, P<. 001). The magnitude of the oxygen resaturation response was also greater in the nonparetic versus the paretic VL (29±23% vs 18±15%, respectively, P<. 001). VO 2 peak was associated with the magnitude of the VL StO 2 change during (r 2= 0.54, P<. 0001) and after (r 2= 0.56, P<. 001) the GXT.Conclusion:During a GXT, there is a blunted oxygen desaturation response in the paretic versus the nonparetic VL of chronic stroke survivors. In the paretic VL, there was a positive correlation between the oxygen desaturation response during the GXT and VO 2 peak.
