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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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ASSOCIATION BETWEEN NEUROMUSCULAR TESTS AND KUMITE PERFORMANCE ON THE BRAZILIAN KARATE NATIONAL TEAM |
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Hamilton Roschel1  ,
Mauro Batista1, Rodrigo Monteiro1, Romulo C. Bertuzzi1,
Renato Barroso1, Irineu Loturco2, Carlos Ugrinowitsch1,
Valmor Tricoli1 and Emerson Franchini1 |
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1School of Physical Education and Sport, University of São Paulo, São Paulo, 2Brazilian Karate Federation, Brazil. |
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© Journal of Sports Science and Medicine (2009) 8(CSSI-3), 20 - 24 |
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| ABSTRACT | |||
| The aim of this study was to verify the relationship of strength
and power with performance on an international level karate team during
official kumite simulations. Fourteen male black belt karate athletes were
submitted to anthropometric data collection and then performed the following
tests on two different days: vertical jump test, bench press and squat maximum
dynamic strength (1RM) tests. We also tested power production for both exercises
at 30 and 60%1RM and performed a kumite match simulation. Blood samples
were obtained at rest and immediately after the kumite matches to measure
blood lactate concentration. Karate players were separated by performance
(winners vs. defeated) on the kumite matches. We found no significant differences
between winners and defeated for strength, vertical jump height, anthropometric
data and blood lactate concentration. Interestingly, winners were more powerful
in the bench press and squat exercises at 30% 1RM. Maximum strength was
correlated with absolute (30% 1RM r = 0.92; 60% 1RM r = 0.63) and relative
power (30% 1RM r = 0.74; 60% 1RM r = 0.11, p > 0.05) for the bench press
exercise. We concluded that international level karate players' kumite match
performance are influenced by higher levels of upper and lower limbs power
production.
Key words: Power, strength, lactate, kumite match. |
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