Aggelos Koutlas, Ilias Smilios, Eleni Maria Kokkinou, Aristides Myrkos, Anastasios Kounoupis, Konstantina Dipla, Andreas Zafeiridis
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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":"{\"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}","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
摘要
目的：动脉闭塞-再灌注操作过程中的近红外光谱（NIRS）指数已被用于检查肌肉的氧化代谢和微血管功能--全身有氧健身的重要决定因素。以前曾使用一种需要运动（或电刺激）然后进行多次动脉闭塞的方法来检测近红外光谱衍生参数与全身 VO2max 的关联。我们研究了在静息状态下单次闭塞-再灌注过程中评估的肌肉脱氧和微血管反应性的近红外光谱衍生指数是否（a）与全身有氧健身的最大/次最大指数相关，以及（b）能否区分不同 VO2max 的个体。我们还研究了闭塞-再灌注过程中哪种近红外光谱参数与全身有氧健康状况最相关。研究方法25 名年轻人在休息状态下进行动脉闭塞-再灌注。监测了阔筋外侧的氧合血红蛋白和脱氧血红蛋白（分别为 O2Hb 和 HHb）的变化；评估了应用近红外光谱技术时的脂肪组织厚度（ATT）。参与者还进行了最大增量运动测试，以评估最大氧饱和度（VO2max）、最大有氧速度（MAV）和通气阈值（VTs）。结果HHbslope 和 HHbmagnitude of increase (occlusion-phase) 以及 O2Hbmagnitude of increase (reperfusion-phase) 与 VO2max 密切相关（r = .695-.763, p r = .468-.530；p 2Hbmagnitude与VTs呈中度相关（r = .399-.414；p 2max（r = .672-.704；p r = .407；p 2Hbmagnitude与低百分位数者相比，VO2max显著更高（p 2max。结论在单次动脉闭塞-再灌注操作过程中，NIRS 衍生的肌肉脱氧/复氧指数与全身最大有氧健康指数（VO2max、MAV）密切相关，并可区分不同 VO2max 的个体。
NIRS-Derived Muscle-Deoxygenation and Microvascular Reactivity During Occlusion-Reperfusion at Rest Are Associated With Whole-Body Aerobic Fitness.
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.
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