The aim of the present study was to investigate the hormonal, physiological and physical responses of simulated kickboxing competition and evaluate if there was a difference between winners and losers. Twenty athletes of regional and national level participated in the study (mean±SD; age: 21.3±2.7yrs; height: 170.0±5.0cm). Hormones [cortisol, testosterone, growth hormone (GH)], blood lactate [La] and glucose concentrations, as well as upper-body Wingate test, countermovement jump (CMJ) performances were measured before and after combats. Heart rate (HR) was measured throughout rounds (R) R1, R2 and R3 and rating of perceived exertion (RPE) was taken after each one. All combats were recorded and analysed to determine the length of different activity phases (high-intensity, low-intensity and referee pause) and the frequency of techniques.
Hormones, glucose, [La], HR, and RPE increased (all P <.001) pre-to-post combat, while a decrease was observed for CMJ, Wingate test performance, body mass (all P <.001) and time of high-intensity activities (P =.005).
There was no difference between winners and losers for hormonal, physiological and physical variables (P >.05). However, winners executed more jab-cross, total punches, roundhouse kicks, total kicks and total attacking techniques (all P <.042) compared to losers.
Kickboxing is an intermittent physically demanding sport inducing changes in the stress-related hormones soliciting the anaerobic lactic system. Training should be orientated to enhance kickboxers’ anaerobic lactic fitness and their ability to strike at a sufficient rate. Further investigation is needed to identify possible differences in tactical and mental abilities that offer some insight into what makes winners “winners”.
Int J Sports Physiol Perform. 2015 Sep 10. [Epub ahead of print] Hormonal, Physiological and Physical Performance During Simulated Kickboxing Combat: Differences Between Winners and Losers. Ouergui I1, Davis P, Houcine N, Marzouki H, Zaouali M, Franchini E, Gmada N, Bouhlel E. Author information 1Research Unit “Sportive Performance and Physical Rehabilitation”, High Institute of Sports and Physical Education, Kef, University of Jendouba, Tunisia.
‘It ain’t so much the things we don’t know that get us in trouble. It’s the things we know that ain’t so’
– Artemus Ward