Evaluating Local Muscle Oxygen Saturation: Ischemic Preconditioning Protocols and the Myth of Overcompensation.

IF 1.9 3区 医学 Q2 SPORT SCIENCES
Journal of Human Kinetics Pub Date : 2024-12-06 eCollection Date: 2025-01-01 DOI:10.5114/jhk/194066
Moacir Marocolo, Rhaí A Arriel, Guilherme Guedes, Anderson Meireles, Michal Krzysztofik, Jakub Chycki, Adam Zajac, Hiago L R Souza
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引用次数: 0

Abstract

Ischemic preconditioning (IPC) is a promising strategy to enhance athletic performance and recovery by improving local muscle oxygen saturation. This study aimed to investigate the effects of different IPC protocols on muscle oxygenation in physically active healthy men. Thirty-four subjects were randomized into three groups and underwent four occlusion cycles of duration of three (IPC-3), five (IPC-5) or seven (IPC-7) min in only one limb. Near-infrared spectroscopy was used to assess oxygenated and deoxygenated hemoglobin levels, calculating total hemoglobin and oxygen saturation percentage (TSI%). Results showed significant improvements in muscle oxygenation following IPC, with variations in minimum, peak, and mean values across protocols. IPC-5 demonstrated the most consistent enhancements in oxygen saturation levels, with statistically significant differences observed in TSI% values during occlusion and reperfusion phases compared to IPC-3 (p < 0.05) and IPC-7 (p < 0.05), without supercompensation of TSI% during reperfusion phases compared to baseline. Specifically, IPC-5 induced the greatest increase in oxygenation in the contralateral limb compared to IPC-3 and IPC-7. These findings suggest that IPC, particularly the five-min protocol, effectively enhances local muscle oxygenation in non-occluded limbs, which may contribute to improved athletic performance and recovery, mainly under conditions where the exercise or testing does not directly involve cuffed limbs.

评估局部肌肉氧饱和度:缺血预处理方案和过度代偿神话。
缺血预处理(IPC)是一种很有前途的策略,通过改善局部肌肉氧饱和度来提高运动表现和恢复。本研究旨在探讨不同IPC方案对体力活动健康男性肌肉氧合的影响。34名受试者随机分为3组,分别在单肢进行3 (IPC-3)、5 (IPC-5)和7 (IPC-7) min的4个疗程。采用近红外光谱法评估含氧和脱氧血红蛋白水平,计算总血红蛋白和氧饱和度百分比(TSI%)。结果显示,IPC后肌肉氧合显著改善,不同方案的最小值、峰值和平均值有所不同。IPC-5在氧饱和度水平上表现出最一致的增强,与IPC-3和IPC-7相比,闭塞期和再灌注期的TSI%值差异有统计学意义(p < 0.05),与基线相比,再灌注期的TSI%没有超补偿。具体而言,与IPC-3和IPC-7相比,IPC-5诱导的对侧肢体氧合增加最大。这些发现表明,IPC,特别是5分钟方案,有效地增强了非闭塞肢体的局部肌肉氧合,这可能有助于提高运动表现和恢复,主要是在运动或测试不直接涉及四肢的情况下。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Human Kinetics
Journal of Human Kinetics 医学-运动科学
CiteScore
4.80
自引率
0.00%
发文量
83
审稿时长
3 months
期刊介绍: The Journal of Human Kinetics is an open access interdisciplinary periodical offering the latest research in the science of human movement studies. This comprehensive professional journal features articles and research notes encompassing such topic areas as: Kinesiology, Exercise Physiology and Nutrition, Sports Training and Behavioural Sciences in Sport, but especially considering elite and competitive aspects of sport. The journal publishes original papers, invited reviews, short communications and letters to the Editors. Manuscripts submitted to the journal must contain novel data on theoretical or experimental research or on practical applications in the field of sport sciences. The Journal of Human Kinetics is published in March, June, September and December. We encourage scientists from around the world to submit their papers to our periodical.
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