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This study investigated the effect of high-intensity cycling re-warm up (RW) within a very short time-frame on the subsequent intermittent sprint performance. Twelve active males completed three trials in random order: control (CON); 3-min RW at 30% of maximal oxygen uptake (VO) (RW30); and 1-min RW at 90% of VO (RW90). During the experimental trials, participants performed 40 min of intermittent cycling exercise followed by 15 min of rest. During the rest period, participants completed CON, RW30, or RW90. After the rest period, participants performed the Cycling Intermittent-Sprint Protocol (CISP), which consisted of 10 seconds of rest, 5 seconds of maximal sprint, and 105 seconds of active recovery with the cycles repeated over 10 min. The mean work during sprint for the CISP was significantly higher in both RW trials than in the CON trial (mean ± standard deviation;
3539 ± 698 J; RW30: 3724 ± 720 J; RW90: 3739 ± 736 J; p < 0.05). The mean electromyogram amplitude during the sprint for the CISP was higher in the RW30 trial than in the CON trial; however, there was no significant difference between the two trials (p = 0.06). The mean median frequency during sprint for the CISP was significantly higher in the RW90 trial than in the CON and RW30 trials (p < 0.05). Rectal temperature did not differ between trials. Oxygenated haemoglobin during the initial 30 s of the CISP was significantly higher in the RW90 trial than in the CON trial (p < 0.05). Compared with seated rest, RW, irrespective of whether it comprised 1 min at 90% of VO or 3 min at 30% of VO, increased the subsequent intermittent sprint performance.
This article was published in the following journal.
Name: European journal of sport science
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