Shorter sprints elicit greater cardiorespiratory and mechanical responses with less fatigue during time-matched sprint interval training (sit) sessions

IF 0.9 4区医学 Q4 REHABILITATION

Kinesiology Pub Date : 2018-12-20 DOI:10.26582/K.50.2.13

Stefano Benítez-Flores, Arilson F. M. de Sousa, Erick Carlos da Cunha Totó, T. Rosa, S. Rosso, C. Foster, D. Boullosa

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引用次数: 17

Abstract

The aim of this study was to compare the physiological, mechanical and perceptual responses to two sprint interval training (SIT) sessions with very short vs. long sprints, and to verify if those differences could be reflected in measures of acute fatigue. Eleven physically active men performed, after the maximum oxygen consumption (VO(2)max) determination, SIT5s (16x5s with 24s of recovery) and SIT20s (4x20s with 120s of recovery) in random order on a cycle ergometer. Physiological, mechanical, and perceptual responses were evaluated during and after the sessions. The countermovement jump (CMJ) height and autonomic control of heart rate (HR) were evaluated before and after the sessions. Diet was also controlled through recall questionnaires. During the training, SIT5s exhibited greater HR, VO2, power output, and total work (TW) (p .05). A faster HR recovery (HRR) and a higher CMJ height were observed after the SIT5s (p .05). Some correlations between the mechanical and physiological responses were revealed only in the SIT5s. SIT5s was demonstrated to be more efficient as exhibited by greater mechanical responses associated with a higher aerobic activity, when compared to the volume-matched SIT protocol of longer sprints. Simple monitoring tools such as HRR and CMJ could help practitioners to detect differences in acute fatigue after different SIT sessions.

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在时间匹配的冲刺间歇训练(静坐)中，较短的冲刺会引起更大的心肺和机械反应，同时减少疲劳

本研究的目的是比较两次短跑间歇训练(SIT)的生理、机械和知觉反应，以及非常短和很长的冲刺，并验证这些差异是否可以反映在急性疲劳的测量中。11名身体活跃的男性在最大耗氧量(VO(2)max)测定后，在自行车测力仪上随机进行了SIT5s (16x5, 24秒恢复)和SIT20s (4x20, 120秒恢复)。在治疗期间和治疗后分别评估生理、机械和知觉反应。对运动前后的反动作跳(CMJ)高度和自主控制心率(HR)进行评价。饮食也通过回忆问卷进行控制。在训练期间，SIT5s表现出更高的HR, VO2，功率输出和总功(TW) (p . 0.05)。SIT5s后患者心率恢复更快(HRR)， CMJ高度更高(p . 0.05)。机械和生理反应之间的一些相关性仅在sit5中被揭示出来。与长时间冲刺的体积匹配的SIT方案相比，sit5被证明更有效，表现为与更高的有氧运动相关的更大的机械反应。简单的监测工具，如HRR和CMJ，可以帮助从业者检测不同SIT疗程后急性疲劳的差异。

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

Kinesiology REHABILITATION-SPORT SCIENCES

CiteScore

1.90

自引率

8.30%

发文量

审稿时长

>12 weeks

期刊介绍： Kinesiology – International Journal of Fundamental and Applied Kinesiology (print ISSN 1331- 1441, online ISSN 1848-638X) publishes twice a year scientific papers and other written material from kinesiology (a scientific discipline which investigates art and science of human movement; in the meaning and scope close to the idiom “sport sciences”) and other adjacent human sciences focused on sport and exercise, primarily from anthropology (biological and cultural alike), medicine, sociology, psychology, natural sciences and mathematics applied to sport in its broadest sense, history, and others. Contributions of high scientific interest, including also results of theoretical analyses and their practical application in physical education, sport, physical recreation and kinesitherapy, are accepted for publication. The following sections define the scope of the journal: Sport and sports activities, Physical education, Recreation/leisure, Kinesiological anthropology, Training methods, Biology of sport and exercise, Sports medicine and physiology of sport, Biomechanics, History of sport and Book reviews with news.