文章基本信息

标题：Moderate Recovery Unnecessary to Sustain High Stroke Volume during Interval Training. A Brief Report
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作者：Jamie Stanley ; Jamie Stanley ; Jamie Stanley 等
期刊名称：Journal of Sports Science and Medicine
印刷版ISSN：1303-2968
出版年度：2014
卷号：13
期号：2
页码：393-396
语种：English
出版社：University of Uludag
摘要：It has been suggested that the time spent at a high stroke volume (SV) is important for improving maximal cardiac function. The aim of this study was to examine the effect of recovery intensity on cardiovascular parameters during a typical high-intensity interval training (HIIT) session in fourteen well-trained cyclists. Oxygen consumption (VO2), heart rate (HR), SV, cardiac output (Qc), and oxygenation of vastus lateralis (TSI) were measured during a HIIT (3×3-min work period, 2 min of recovery) session on two occasions. VO2, HR and Qc were largely higher during moderate-intensity (60%) compared with low-intensity (30%) (VO2, effect size; ES = +2.6; HR, ES = +2.8; Qc, ES = +2.2) and passive (HR, ES = +2.2; Qc, ES = +1.7) recovery. By contrast, there was no clear difference in SV between the three recovery conditions, with the SV during the two active recovery periods not being substantially different than during exercise (60%, ES = −0.1; 30%, ES = −0.2). To conclude, moderate-intensity recovery may not be required to maintain a high SV during HIIT.
关键词：High-intensity interval training;cardiac output;cardiac function;arteriovenous oxygen difference