Aggelos Koutlas, Ilias Smilios, Eleni Maria Kokkinou, Aristides Myrkos, Anastasios Kounoupis, Konstantina Dipla, Andreas Zafeiridis
{"title":"NIRS-Derived Muscle-Deoxygenation and Microvascular Reactivity During Occlusion-Reperfusion at Rest Are Associated With Whole-Body Aerobic Fitness.","authors":"Aggelos Koutlas, Ilias Smilios, Eleni Maria Kokkinou, Aristides Myrkos, Anastasios Kounoupis, Konstantina Dipla, Andreas Zafeiridis","doi":"10.1080/02701367.2022.2159309","DOIUrl":null,"url":null,"abstract":"<p><p><b>Purpose:</b> Near-infrared spectroscopy (NIRS) indices during arterial occlusion-reperfusion maneuver have been used to examine the muscle's oxidative metabolism and microvascular function-important determinants of whole-body aerobic-fitness. The association of NIRS-derived parameters with whole-body VO<sub>2</sub>max was previously examined using a method requiring exercise (or electrical stimulation) followed by multiple arterial occlusions. We examined whether NIRS-derived indices of muscle deoxygenation and microvascular reactivity assessed during a single occlusion-reperfusion <i>at rest</i> are (a) associated with maximal/submaximal indices of whole-body aerobic-fitness and (b) could discriminate individuals with different VO<sub>2</sub>max. We, also, investigated which NIRS-parameter during occlusion-reperfusion correlates best with whole-body aerobic-fitness. <b>Methods:</b> Twenty-five young individuals performed an arterial occlusion-reperfusion <i>at rest</i>. Changes in oxygenated- and deoxygenated-hemoglobin (O<sub>2</sub>Hb and HHb, respectively) in vastus-lateralis were monitored; adipose tissue thickness (ATT) at NIRS-application was assessed. Participants also underwent a maximal incremental exercise test for VO<sub>2</sub>max, maximal aerobic velocity (MAV), and ventilatory-thresholds (VTs) assessments. <b>Results:</b> The HHbslope and HHbmagnitude of increase (occlusion-phase) and O<sub>2</sub>Hbmagnitude of increase (reperfusion-phase) were strongly correlated with VO<sub>2</sub>max (<i>r</i> = .695-.763, <i>p</i> < .001) and moderately with MAV (<i>r</i> = .468-.530; <i>p</i> < .05). O<sub>2</sub>Hbmagnitude was moderately correlated with VTs (<i>r</i> = .399-.414; <i>p</i> < .05). After controlling for ATT, the correlations remained significant for VO<sub>2</sub>max (<i>r</i> = .672-.704; <i>p</i> < .001) and MAV (<i>r</i> = .407; <i>p</i> < .05). Individuals in the high percentiles after median and tritile splits for HHbslope and O<sub>2</sub>Hbmagnitude had significantly greater VO<sub>2</sub>max vs. those in low percentiles (<i>p</i> < .01-.05). The HHbslope during occlusion was the best predictor of VO<sub>2</sub>max. <b>Conclusion:</b> NIRS-derived muscle deoxygenation/reoxygenation indices during a single arterial occlusion-reperfusion maneuver are strongly associated with whole-body maximal indices of aerobic-fitness (VO<sub>2</sub>max, MAV) and may discriminate individuals with different VO<sub>2</sub>max.</p>","PeriodicalId":54491,"journal":{"name":"Research Quarterly for Exercise and Sport","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Research Quarterly for Exercise and Sport","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1080/02701367.2022.2159309","RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/1/23 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"HOSPITALITY, LEISURE, SPORT & TOURISM","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: Near-infrared spectroscopy (NIRS) indices during arterial occlusion-reperfusion maneuver have been used to examine the muscle's oxidative metabolism and microvascular function-important determinants of whole-body aerobic-fitness. The association of NIRS-derived parameters with whole-body VO2max was previously examined using a method requiring exercise (or electrical stimulation) followed by multiple arterial occlusions. We examined whether NIRS-derived indices of muscle deoxygenation and microvascular reactivity assessed during a single occlusion-reperfusion at rest are (a) associated with maximal/submaximal indices of whole-body aerobic-fitness and (b) could discriminate individuals with different VO2max. We, also, investigated which NIRS-parameter during occlusion-reperfusion correlates best with whole-body aerobic-fitness. Methods: Twenty-five young individuals performed an arterial occlusion-reperfusion at rest. Changes in oxygenated- and deoxygenated-hemoglobin (O2Hb and HHb, respectively) in vastus-lateralis were monitored; adipose tissue thickness (ATT) at NIRS-application was assessed. Participants also underwent a maximal incremental exercise test for VO2max, maximal aerobic velocity (MAV), and ventilatory-thresholds (VTs) assessments. Results: The HHbslope and HHbmagnitude of increase (occlusion-phase) and O2Hbmagnitude of increase (reperfusion-phase) were strongly correlated with VO2max (r = .695-.763, p < .001) and moderately with MAV (r = .468-.530; p < .05). O2Hbmagnitude was moderately correlated with VTs (r = .399-.414; p < .05). After controlling for ATT, the correlations remained significant for VO2max (r = .672-.704; p < .001) and MAV (r = .407; p < .05). Individuals in the high percentiles after median and tritile splits for HHbslope and O2Hbmagnitude had significantly greater VO2max vs. those in low percentiles (p < .01-.05). The HHbslope during occlusion was the best predictor of VO2max. Conclusion: NIRS-derived muscle deoxygenation/reoxygenation indices during a single arterial occlusion-reperfusion maneuver are strongly associated with whole-body maximal indices of aerobic-fitness (VO2max, MAV) and may discriminate individuals with different VO2max.
期刊介绍:
Research Quarterly for Exercise and Sport publishes research in the art and science of human movement that contributes significantly to the knowledge base of the field as new information, reviews, substantiation or contradiction of previous findings, development of theory, or as application of new or improved techniques. The goals of RQES are to provide a scholarly outlet for knowledge that: (a) contributes to the study of human movement, particularly its cross-disciplinary and interdisciplinary nature; (b) impacts theory and practice regarding human movement; (c) stimulates research about human movement; and (d) provides theoretical reviews and tutorials related to the study of human movement. The editorial board, associate editors, and external reviewers assist the editor-in-chief. Qualified reviewers in the appropriate subdisciplines review manuscripts deemed suitable. Authors are usually advised of the decision on their papers within 75–90 days.