Version 1
: Received: 4 September 2024 / Approved: 5 September 2024 / Online: 5 September 2024 (11:01:12 CEST)
How to cite:
Karanika, P.; Gallardo, P.; Tsatalas, T.; Giakas, G.; Tsaklis, P. V. Circadian Rhythm and Physical Fatigue Separately Influence Cognitive and Physical Performance in Amateur Athletes. Preprints2024, 2024090439. https://doi.org/10.20944/preprints202409.0439.v1
Karanika, P.; Gallardo, P.; Tsatalas, T.; Giakas, G.; Tsaklis, P. V. Circadian Rhythm and Physical Fatigue Separately Influence Cognitive and Physical Performance in Amateur Athletes. Preprints 2024, 2024090439. https://doi.org/10.20944/preprints202409.0439.v1
Karanika, P.; Gallardo, P.; Tsatalas, T.; Giakas, G.; Tsaklis, P. V. Circadian Rhythm and Physical Fatigue Separately Influence Cognitive and Physical Performance in Amateur Athletes. Preprints2024, 2024090439. https://doi.org/10.20944/preprints202409.0439.v1
APA Style
Karanika, P., Gallardo, P., Tsatalas, T., Giakas, G., & Tsaklis, P. V. (2024). Circadian Rhythm and Physical Fatigue Separately Influence Cognitive and Physical Performance in Amateur Athletes. Preprints. https://doi.org/10.20944/preprints202409.0439.v1
Chicago/Turabian Style
Karanika, P., Giannis Giakas and Panagiotis V. Tsaklis. 2024 "Circadian Rhythm and Physical Fatigue Separately Influence Cognitive and Physical Performance in Amateur Athletes" Preprints. https://doi.org/10.20944/preprints202409.0439.v1
Abstract
Circadian rhythm (CR) influences various physiological functions, including physical and cognitive performance, which fluctuate throughout the day. The present study aimed to investigate the combined and separate effects of CR and physical fatigue on cognitive and physical performance. A sample of 18 amateur athletes was subjected to a series of tests at three different times of the day: morning, afternoon, and evening. Fatigue was induced following isokinetic concentric exercise combined with a 20-minute treadmill run, followed by assessments of selected physical and cognitive tasks. Repeated measures ANOVA did not reveal an interaction between CR and fatigue in cognitive performance (p > 0.05). However, a significant main effect of fatigue was observed in visual reaction time (VisRT) across all three time points. Moreover, peak torque (PT) and peak torque fatigue index (PTFI) showed significant differences between the three times of the day, peaking in the evening. Although we found no interaction between CR and physical fatigue state on selected cognitive parameters at the three times of day, a separate effect of fatigue on cognitive performance was identified. Additionally, physical parameters exhibited peak values occurring in the evening hours. Future research should further explore underlying mechanisms that potentially influence cognitive performance at different times of the day.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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