薄荷醇漱口可提高热应激下训练有素的青少年男子的自行车运动成绩。

IF 3 3区 医学 Q2 NUTRITION & DIETETICS
Kierstyn V Hawke, Erica H Gavel, David J Bentley, Heather M Logan-Sprenger
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引用次数: 0

摘要

目的:本研究调查了在高温条件下(31.4±0.9 °C,23.4±3.7%相对湿度),薄荷醇漱口(MR)对青少年运动员在改良可变单车测试(M-VCT)中骑车表现的影响:训练有素的青少年男性自行车运动员(n = 11,16.7 ± 1.3 岁,身高 176.6 ± 8.8 厘米,体重 65.8 ± 11.6 千克,最大摄氧量 62.97 ± 7.47 毫升-千克-1-分钟-1)自愿完成了 30 分钟 M-VCT 的三次试验(熟悉试验和两次试验),其中包括五圈 6 分钟,每圈由三次 6 秒加速和三次 10 秒冲刺组成。在随机交叉设计中,每圈(共 6 次)开始前 5 秒钟吞服 MEN(0.01%)或安慰剂(PLA)(水晶灯)。记录输出功率、距离(以公里为单位)、核心温度、心率、知觉消耗、热刺激(热舒适度和热感觉)和血液乳酸浓度:与 PLA 相比,MEN MR 可明显提高 M-VCT 平均输出功率 1.81 ± 1.57%(MEN,177.8 ± 31.4 W;PLA,174.7 ± 30.5 W,p < .001,95% 置信区间 [1.73,4.46],d = 1.53)。在最大间歇冲刺时,MEN 的 6 秒和 10 秒平均功率输出明显高于 PLA(6 秒,p = .041,95% 置信区间 [0.73,27.19],d = 0.71;10 秒,p = .002,95% 置信区间 [11.08,35.22],d = 1.29)。结论:64% 的运动员(7/11)在使用 MEN 后提高了 M-VCT 成绩。这项研究结果表明,MEN 磁共振可提高青少年精英男子自行车运动员在运动特定随机自行车任务中的功率输出。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Menthol Mouth Rinsing Improves Cycling Performance in Trained Adolescent Males Under Heat Stress.

Purpose: This study investigated the effect of menthol (MEN) mouth rinsing (MR) on cycling performance during a modified variable cycle test (M-VCT) in adolescent athletes under hot conditions (31.4 ± 0.9 °C, 23.4 ± 3.7% relative humidity).

Methods: Trained adolescent male cyclists (n = 11, 16.7 ± 1.3 years, height 176.6 ± 8.8 cm, body mass 65.8 ± 11.6 kg, maximal oxygen uptake 62.97 ± 7.47 ml·kg-1·min-1) voluntarily completed three trials (familiarization and two experimental) of a 30-min M-VCT, which included five 6-min laps consisting of three 6-s accelerations and three 10-s sprints throughout each lap. In a randomized crossover design, MEN (0.01%) or placebo (PLA) (crystal-light), was swilled for 5 s before the start of each lap (total of 6 MR). Power output, distance (in kilometers), core temperature, heart rate, perceptual exertion, thermal stimulation (thermal comfort and thermal sensation), and blood lactate concentration were recorded.

Results: MEN MR significantly improved M-VCT mean power output by 1.81 ± 1.57% compared to PLA (MEN, 177.8 ± 31.4 W; PLA, 174.7 ± 30.5 W, p < .001, 95% confidence interval [1.73, 4.46], d = 1.53). For maximal intermittent sprints, 6- and 10-s mean power output was significantly higher with MEN than PLA (6 s, p = .041, 95% confidence interval [0.73, 27.19], d = 0.71; 10 s, p = .002, 95% confidence interval [11.08, 35.22], d = 1.29). There was no significant difference in core temperature, heart rate, blood lactate concentration, or any perceptual measure between trials (p > .05) despite significantly higher work with MEN.

Conclusion: 64% of athletes (7/11) improved M-VCT performance with MEN. The results of this investigation suggest that a MEN MR may improve power output during a sport-specific stochastic cycling task in elite adolescent male cyclists.

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来源期刊
CiteScore
5.00
自引率
8.00%
发文量
50
审稿时长
6-12 weeks
期刊介绍: The International Journal of Sport Nutrition and Exercise Metabolism (IJSNEM) publishes original scientific investigations and scholarly reviews offering new insights into sport nutrition and exercise metabolism, as well as articles focusing on the application of the principles of biochemistry, physiology, and nutrition to sport and exercise. The journal also offers editorials, digests of related articles from other fields, research notes, and reviews of books, videos, and other media releases. To subscribe to either the print or e-version of IJSNEM, press the Subscribe or Renew button at the top of your screen.
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