Behavior of the variability of the pre-and post-football heart rate of football
Abstract
Football is a complex sport that requires high technical, tactical, physical and psychological level of the athletes. The study aimed to determine the behavior of HRV pre, post and 48 hours after different football matches. The sample was composed of 11 male athletes from the Under 17 football field of the first division of the state championship of Paraná, with a mean age of 16.7 ± 0.5 years. Measurements of HRV occurred in 3 stages: Before, after and 48 h after Football matches. In order to compare the pre and post hours and after 48h after the matches, the Anova test was performed on a factor for repeated measurements, followed by the Tukey test (p <0.05) to identify significant differences between the results in the different moments of HRV monitoring. To identify the association between the variables, the Pearson correlation was calculated for the means of the different moments. When analyzing the HRV pre the RR interval presented mean values of 697.6 ± 143.28 ms, post 566.9 ± 143.9 ms and after 48 h 831.8 ± 142.2 ms. SDNN showed values pre, post and after 48 h of 134.5 ± 67.5 ms, 83.4 ± 67.1 ms and 132.2 ± 52.2 ms in this order. The pre-game LF had values of 44.6 ± 15.7 Hz, post-game 49.7 ± 22.0 Hz and after 48 hrs 43.9 ± 16.0 Hz. The HF pre, post and after 48 h, values of 55.1 ± 15.4 Hz, 49.0 ± 21.7 Hz and 55.0 ± 15.7 Hz in this sequence. It can be concluded that the information found from the HRV can serve as parameters for trainers to create strategies to individualize training loads.
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