Open AccessPhysiological responses and external validity of a new setting for taekwondo combat simulation
Author(s) -
Matheus Hausen,
Pedro Paulo da Silva Soares,
Marcus Paulo Araújo,
Flávia Porto,
Émerson Franchini,
Craig A. Bridge,
Jonas Lírio Gurgel
Publication year - 2017
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0171553
Subject(s) - cardiorespiratory fitness , heart rate , blood lactate , medicine , simulation , physical therapy , vo2 max , psychology , computer science , blood pressure
Combat simulations have served as an alternative framework to study the cardiorespiratory demands of the activity in combat sports, but this setting imposes rule-restrictions that may compromise the competitiveness of the bouts. The aim of this study was to assess the cardiorespiratory responses to a full-contact taekwondo combat simulation using a safe and externally valid competitive setting. Twelve male national level taekwondo athletes visited the laboratory on two separate occasions. On the first visit, anthropometric and running cardiopulmonary exercise assessments were performed. In the following two to seven days, participants performed a full-contact combat simulation, using a specifically designed gas analyser protector. Oxygen uptake (V ˙ O 2), heart rate (HR) and capillary blood lactate measurements ([La - ]) were obtained. Time-motion analysis was performed to compare activity profile. The simulation yielded broadly comparable activity profiles to those performed in competition, a meanV ˙ O 2of 36.6 ± 3.9 ml.kg -1 .min -1 (73 ± 6%V ˙ O 2 PEAK) and mean HR of 177 ± 10 beats.min -1 (93 ± 5% HR PEAK ). A peakV ˙ O 2of 44.8 ± 5.0 ml.kg -1 .min -1 (89 ± 5%V ˙ O 2 PEAK), a peak heart rate of 190 ± 13 beats.min -1 (98 ± 3% HRmax) and peak [La - ] of 12.3 ± 2.9 mmol.L –1 was elicited by the bouts. Regarding time-motion analysis, combat simulation presented a similar exchange time, a shorter preparation time and a longer exchange-preparation ratio. Taekwondo combats capturing the full-contact competitive elements of a bout elicit moderate to high cardiorespiratory demands on the competitors. These data are valuable to assist preparatory strategies within the sport.