训练有素的赛艇运动员体内肌肉氧化能力与生理参数相关。

IF 1.4 4区 教育学 Q3 HOSPITALITY, LEISURE, SPORT & TOURISM
Leonardo Trevisol Possamai, Rafael Alves de Aguiar, Fernando Klitzke Borszcz, Paulo Cesar do Nascimento Salvador, Ricardo Dantas de Lucas, Tiago Turnes
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Also, one test to determine <math><mi>m</mi><mover><mi>V</mi><mo>˙</mo></mover><mrow><msub><mi>O</mi><mn>2</mn></msub></mrow></math> off-kinetics of the <i>vastus lateralis</i> muscle using a repeated arterial occlusions protocol. <b>Results:</b> The <math><mi>m</mi><mover><mi>V</mi><mo>˙</mo></mover><mrow><msub><mi>O</mi><mn>2</mn></msub></mrow></math> generated a good monoexponential fit (<i>R</i><sup>2</sup> = 0.960 ± 0.030; SEE = 0.041 ± 0.018%.s<sup>-1</sup>). 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引用次数: 0

摘要

目的:通过近红外光谱测量运动后肌肉氧摄取(mV˙O2)动力学,已被用于肌肉氧化代谢的功能评估。本研究旨在确定训练有素的赛艇运动员的mV˙O2代谢动力学,并验证mV˙O2回收率(k)与计时成绩和不同有氧参数的关系。方法:11名男性赛艇运动员(年龄:20±3岁;V˙O2max: 4.28±0.35 L·min-1)使用划艇测力仪进行(I)增量试验,以确定最大摄氧量(V˙O2max)和峰值功率输出(Ppeak);(II)多次访问以确定最大乳酸稳态(MLSS);(三)2000米赛艇测力计性能测试。此外,一项使用重复动脉闭塞方案确定股外侧肌mV˙O2脱动力学的测试。结果:mV˙O2具有良好的单指数拟合(R2 = 0.960±0.030;SEE = 0.041±0.018%.s-1)。mV˙O2的k值(2.06±0.58 min-1)与相对V˙O2max (r = 0.79)、MLSS输出功率(r = 0.76)和峰值(r = 0.83)相关;但与2000米赛艇成绩无关(r = -0.38 ~ 0.52;P > .152)。结论:这些研究结果表明,虽然与赛艇表现无关,但在次最大等距膝关节伸展后测定的mV˙O2失动力学可能是一种实用且不太详尽的方法,而不是在训练计划中评估肌肉氧化代谢的侵入性反应和增量测试。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Muscle Oxidative Capacity in Vivo Is Associated With Physiological Parameters in Trained Rowers.

Purpose: The muscle oxygen uptake (mV˙O2) kinetics following exercise, measured by near-infrared spectroscopy, has been used as a functional evaluation of muscle oxidative metabolism. This study aimed to determine the mV˙O2 off-kinetics and verify the relationship of the recovery rate of mV˙O2 (k) with time-trial performance and different aerobic parameters in trained rowers. Methods: Eleven male rowers (age: 20 ± 3 years; V˙O2max: 4.28 ± 0.35 L·min-1) used a rowing ergometer to perform (I) an incremental test to determine the maximal oxygen uptake (V˙O2max) and peak power output (Ppeak); (II) several visits to determine maximal lactate steady state (MLSS); and (III) a 2000-m rowing ergometer performance test. Also, one test to determine mV˙O2 off-kinetics of the vastus lateralis muscle using a repeated arterial occlusions protocol. Results: The mV˙O2 generated a good monoexponential fit (R2 = 0.960 ± 0.030; SEE = 0.041 ± 0.018%.s-1). The k of mV˙O2 (2.06 ± 0.58 min-1) was associated with relative V˙O2max (r = 0.79), power output at MLSS (r = 0.76), and Ppeak (r = 0.83); however, it was not related with 2000-m rowing performance (r = -0.38 to 0.52; p > .152). Conclusion: These findings suggest that although not associated with rowing performance, the mV˙O2 off-kinetics determined after a submaximal isometric knee extension may be a practical and less-exhaustive approach than invasive responses and incremental tests to assess the muscle oxidative metabolism during a training program.

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来源期刊
CiteScore
4.30
自引率
0.00%
发文量
125
审稿时长
6-12 weeks
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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