Physiological Responses and Performance Analysis Difference between Official and Simulated Karate Combat Conditions
Asian Journal of Sports Medicine: 5 (1); 21-29
October 19, 2013
Article Type: Research Article
March 4, 2013
October 7, 2013
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
This study aimed to compare physiological responses and time-motion analysis between official and simulated karate combat.
Ten high-level karatekas participated in this study, which included official and simulated karate combat.
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.
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.
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