Allison S Hyngstrom, Jennifer N Nguyen, Toni D Uhrich, Michael T Wright, David D Gutterman, Brian D Schmit, Matthew J Durand
{"title":"在分级运动测试中量化慢性中风存活者腹外侧肌的组织氧饱和度","authors":"Allison S Hyngstrom, Jennifer N Nguyen, Toni D Uhrich, Michael T Wright, David D Gutterman, Brian D Schmit, Matthew J Durand","doi":"10.1097/cpt.0000000000000208","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>This study examined tissue oxygen saturation (StO<sub>2</sub>) of the vastus lateralis (VL) muscles of chronic stroke survivors during a graded exercise test (GXT). We hypothesized the reduction in StO<sub>2</sub> will be blunted in the paretic vs. non-paretic VL during a maximum-effort GXT.</p><p><strong>Methods: </strong>Chronic stroke survivors performed a GXT and StO<sub>2</sub> of the VL in each leg was measured using near infrared spectroscopy. Twenty-six stroke survivors performed a GXT.</p><p><strong>Results: </strong>At rest, there was no difference in StO<sub>2</sub> between the paretic and non-paretic VL (65±9% vs. 68±7%, respectively, p=0.32). The maximum change in StO<sub>2</sub> from rest during the GXT was greater in the non-paretic vs. the paretic VL (-16±14% vs. -9±10%, respectively, p<0.001). The magnitude of the oxygen resaturation response was also greater in the non-paretic vs. the paretic VL (29±23% vs. 18±15%, respectively, p<0.001). VO<sub>2</sub> Peak was associated with the magnitude of the VL StO<sub>2</sub> change during (r<sup>2</sup>=0.54, p<0.0001) and after (r<sup>2</sup>=0.56, p<0.001) the GXT.</p><p><strong>Conclusions: </strong>During a GXT there is a blunted oxygen desaturation response in the paretic vs. the non-paretic VL of chronic stroke survivors. In the paretic VL there was a positive correlation between the oxygen desaturation response during the GXT and VO<sub>2</sub> Peak.</p>","PeriodicalId":72526,"journal":{"name":"Cardiopulmonary physical therapy journal","volume":"34 1","pages":"39-50"},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9937433/pdf/","citationCount":"1","resultStr":"{\"title\":\"Quantification of Tissue Oxygen Saturation in the Vastus Lateralis Muscle of Chronic Stroke Survivors during a Graded Exercise Test.\",\"authors\":\"Allison S Hyngstrom, Jennifer N Nguyen, Toni D Uhrich, Michael T Wright, David D Gutterman, Brian D Schmit, Matthew J Durand\",\"doi\":\"10.1097/cpt.0000000000000208\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>This study examined tissue oxygen saturation (StO<sub>2</sub>) of the vastus lateralis (VL) muscles of chronic stroke survivors during a graded exercise test (GXT). We hypothesized the reduction in StO<sub>2</sub> will be blunted in the paretic vs. non-paretic VL during a maximum-effort GXT.</p><p><strong>Methods: </strong>Chronic stroke survivors performed a GXT and StO<sub>2</sub> of the VL in each leg was measured using near infrared spectroscopy. Twenty-six stroke survivors performed a GXT.</p><p><strong>Results: </strong>At rest, there was no difference in StO<sub>2</sub> between the paretic and non-paretic VL (65±9% vs. 68±7%, respectively, p=0.32). The maximum change in StO<sub>2</sub> from rest during the GXT was greater in the non-paretic vs. the paretic VL (-16±14% vs. -9±10%, respectively, p<0.001). The magnitude of the oxygen resaturation response was also greater in the non-paretic vs. the paretic VL (29±23% vs. 18±15%, respectively, p<0.001). VO<sub>2</sub> Peak was associated with the magnitude of the VL StO<sub>2</sub> change during (r<sup>2</sup>=0.54, p<0.0001) and after (r<sup>2</sup>=0.56, p<0.001) the GXT.</p><p><strong>Conclusions: </strong>During a GXT there is a blunted oxygen desaturation response in the paretic vs. the non-paretic VL of chronic stroke survivors. In the paretic VL there was a positive correlation between the oxygen desaturation response during the GXT and VO<sub>2</sub> Peak.</p>\",\"PeriodicalId\":72526,\"journal\":{\"name\":\"Cardiopulmonary physical therapy journal\",\"volume\":\"34 1\",\"pages\":\"39-50\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9937433/pdf/\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cardiopulmonary physical therapy journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1097/cpt.0000000000000208\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2022/11/7 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cardiopulmonary physical therapy journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1097/cpt.0000000000000208","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/11/7 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
Quantification of Tissue Oxygen Saturation in the Vastus Lateralis Muscle of Chronic Stroke Survivors during a Graded Exercise Test.
Purpose: This study examined tissue oxygen saturation (StO2) of the vastus lateralis (VL) muscles of chronic stroke survivors during a graded exercise test (GXT). We hypothesized the reduction in StO2 will be blunted in the paretic vs. non-paretic VL during a maximum-effort GXT.
Methods: Chronic stroke survivors performed a GXT and StO2 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 StO2 between the paretic and non-paretic VL (65±9% vs. 68±7%, respectively, p=0.32). The maximum change in StO2 from rest during the GXT was greater in the non-paretic vs. the paretic VL (-16±14% vs. -9±10%, respectively, p<0.001). The magnitude of the oxygen resaturation response was also greater in the non-paretic vs. the paretic VL (29±23% vs. 18±15%, respectively, p<0.001). VO2 Peak was associated with the magnitude of the VL StO2 change during (r2=0.54, p<0.0001) and after (r2=0.56, p<0.001) the GXT.
Conclusions: During a GXT there is a blunted oxygen desaturation response in the paretic vs. the non-paretic VL of chronic stroke survivors. In the paretic VL there was a positive correlation between the oxygen desaturation response during the GXT and VO2 Peak.
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