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Physiological Responses and Performance Analysis Difference between Official and Simulated Karate Combat Conditions

AUTHORS

Helmi Chaabne 1 , * , Bessem Mkaouer 2 , Emerson Franchini 3 , Nafaa Souissi 4 , Mohamed Amine Selmi 5 , Yassine Nagra 6 , Karim Chamari 7

1 Tunisian Research Laboratory Sport Performance Optimisation, National Centre of Medicine and Science in Sport, Tunisia

2 Higher Institute of Sports and Physical Education, Manouba University, Tunis, Tunisia

3 Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil; Facult de Science du Sport, Universit de Montpellier I, France

4 Biomechanics laboratory, national Institute of Orthopedics M.T. Kassab Tunisia

5 Research Unit School and University Sportive Practices and Performance , High Institute of Sports and Physical Education, Kef, University of Jendouba, Tunisia

6 Sport Performance & Health Higher Institute of Sport and Physical Education of Ksar Said, Tunis, Tunisia

7 Research and Education Centre, Aspetar, Qatar Orthopedic and Sports Medicine Hospital, Doha, Qatar

How to Cite: Chaabne H, Mkaouer B, Franchini E, Souissi N, Selmi M A, et al. Physiological Responses and Performance Analysis Difference between Official and Simulated Karate Combat Conditions, Asian J Sports Med. Online ahead of Print ; 5(1):34228. doi: 10.5812/asjsm.34228.

ARTICLE INFORMATION

Asian Journal of Sports Medicine: 5 (1); 21-29
Published Online: October 19, 2013
Article Type: Research Article
Received: March 4, 2013
Accepted: October 7, 2013
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Abstract

Purpose: This study aimed to compare physiological responses and time-motion analysis between official and simulated karate combat.

Methods: Ten high-level karatekas participated in this study, which included official and simulated karate combat.

Results: Karatekas used more upper-limb attack techniques during official combat compared to simulated ones (63 vs 31; P=0.05, respectively). For official and simulated karate matches, the numbers of high-intensity actions (i.e. offensive and defensive fighting activity) were 146 and 185, respectively (P>0.05), lasting from <1s to 5s each. Total fighting activity phase was lower during official compared to simulated matches (21.08.2s vs 30.49.9s, P<0.01, respectively). Effort (10.02.8s) to rest (11.92.7s) ratio (E:R) was 1:1 and high-intensity actions (1.60.3s) to rest (11.92.7s) ratio was higher than 1:7 during simulated combat. During official karate match, the activity and rest duration were 10.03.4s and 16.24.1s, respectively (E:R ratio 1:1.5), while high-intensity actions were 1.50.3s, resulting in an E:R ratio of 1:11. Blood lactate concentration was higher during official (11.141.82 mmol.l-1) compared to simulated karate combat (7.802.66 mmol.l-1) (P<0.05). Subjective perceived exertion differed significantly between official and simulated combat (142 vs. 122; P<0.05, respectively). The majority of karatekas perceived exertion was higher in the lower limb muscle groups irrespective of the karate combat condition.

Conclusion: Official and simulated matches differ considerably, therefore coaches should create new strategies during training sessions to achieve the same effort and pause profile of competitive matches and/or that athletes should be submitted to frequent competitions to adapt themselves to the profile of this event.

Keywords

Karate Combat Sport Time-motion Analysis Physiological Responses

© 2013, Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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