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Publication
Pre-exercise skin temperature evolution is not related with 100 m front crawl performance
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Advisor(s)
Abstract(s)
During the transition between warm-up and competition there is a change in core, muscle and (eventually) skin
temperature that may affect swimming performance. We have aimed to assess skin temperature evolution during
transition phases of different durations before a typical front crawl effort and to investigate its relationship with
performance. Following a standardized warm-up, nine adolescent male swimmers performed three maximal
randomized 100 m maximum front crawl trials after 10, 20 and 45 min transition phases. Skin temperature,
performance (time, stroke frequency, length and index, and propelling efficiency), heart rate, lactate and
perceived effort were assessed. Data showed a skin temperature log increase over time (R2 > 0.96, p < 0.01)
without differences from the 15 min with the following instants. Performance and psychophysiological variables
were similar between transition phases. However, skin temperature at the end of the transition periods, i.e., just
before the 100 m trials, was lower in the 10 min than the 20 and 45 min transitions (32.0 ± 0.6 vs 33.0 ± 0.4 and
33.5 ± 0.5 ◦C, respectively). The main finding was that no relevant relationships were observed between pre-test
skin temperature and performance times (|r| < 0.6, p > 0.05) for the studied transition phases. We have
concluded that transitions longer than 10 min will not present thermal changes and that, within the physiologic
limits studied, pre-exercise skin temperature does not influence swimming performance.
Description
Keywords
Swimming Front craw Warm-up Transition phase Infrared thermography