The Effect of a Pace Training Session on Internal Load and Neuromuscular Parameters in Taekwondo Athletes.

Jader Sant' Ana,Fernando Diefenthaeler,Raphael Luiz Sakugawa

doi:10.3389/fphys.2021.710627

Jader Sant' Ana, Fernando Diefenthaeler + Show 1 more

Open Access

https://doi.org/10.3389/fphys.2021.710627

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Abstract

This study aimed to verify the effect of a pace training session at an intensity corresponding to the kick frequency at the anaerobic threshold (KFAT) on the internal load response and motor response performance of the roundhouse kick. Twelve black belt taekwondo athletes underwent two evaluation sessions: (1) performed the progressive specific test for taekwondo (PSTT) to identify the heart rate deflection point (HRDP) and the KFAT; (2) performed three 2-min rounds with a 1-min interval. Heart rate (HR) throughout each round and motor response performance before and after sessions were measured. The Student's T-test or Wilcoxon test was used, and p < 0.05 was adopted. During round 1, a lower internal load was observed (167 ± 10 bpm) compared with HRDP (179 ± 8 bpm; p = 0.035). During rounds 2 (178 ± 10 bpm; p = 0.745) and 3 (179 ± 8 bpm; p = 1), no differences were observed for an internal load and HRDP. Motor response performance showed no differences. However, a potentiation in the post countermovement jump test compared with rounds 1 (p = 0.012) and 2 (p = 0.028) was observed. The internal load (HR) observed at the intensity corresponding to KFAT can be considered in the prescription of training when the aim is to control the internal load responses without inducing fatigue.

Highlights

Taekwondo is characterized as an intermittent sport, with alternation between attacks involving high-intensity movements and periods of low intensity, or even periods of inactivity (Matsushigue et al, 2009)
During round 1, a lower internal load value was observed compared with heart rate deflection point (HRDP) (p = 0.0001)
The present study aimed to verify the effects of a pace training session at an intensity corresponding to kick frequency at the anaerobic threshold (KFAT) on the internal load response (HR), performance of the countermovement jump test (CMJ) test, and parameters associated with the premotor reaction time, motor reaction time, and motor response of roundhouse kicks in taekwondo athletes

Summary

Introduction

Taekwondo is characterized as an intermittent sport, with alternation between attacks involving high-intensity movements and periods of low intensity, or even periods of inactivity (Matsushigue et al, 2009). These characteristics are reflected in an effort: pause ratio (E:P) during combat of from 1:4 to 1:9 (Matsushigue et al, 2009; Santos et al, 2011; Campos et al, 2012; Del Vecchio et al, 2016). It is important to note that success in sports such as taekwondo is often associated with rapid motor actions in response to a particular stimulus (Bouhlel et al, 2006; Loturco et al, 2017), such as, for example, the reaction and response times of the kicks (Vieten et al, 2007; Hermann et al, 2008).

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