Características da preensão manual de judocas de alto nível / Characteristics of the handgrip of the high level judokas

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

23/02/2012

RESUMO

The objective of this study was to analyze the characteristics of grip in Judo. The study included 08 athletes with a degree of black belt in Judo, male, over 18 years, competing at the international level and who seek to place the 2012 London Olympics. To characterize the types of grip that make up the judo technique to grab the opponent, there were shots of fighting athletes in training, was used a spreadsheet where identifies the type of grip on the judogi specific locations and also in relation to specific by hand. As for the quantification of the kind of grip on fighting, videos of international competitions were analyzed, was used a spreadsheet that quantifies the number of grips on each site judogi the opponent, so that later was made an indirect relationship with the spreadsheet data characterization and thus to obtain a quantification of the types of grip in international fights. For the measurement of handgrip dynamometers were used developed by Instrumentation Laboratory (LABIN/CEFID/UDESC). The handgrip strength was measured for 30 seconds, three times in the dominant hand and three times in the non dominant hand with measures interspersed in his hands, sitting, adapted from the American Society of Hand Therapists (ASHT). Was analyzed the following parameters of the Force vs. Time curve of the grip types identified, maximum force (FMAX), reaction time (TREACT), time to maximum force (TFMAX), growth rate of force (TXCRESC) and the Index fall of force (IQ). Among the results cited that were identified in all three ways to grip used by judokas: Full Palmar, digit-palmar and a third consisting of an association between Digit-palmar and lateral pinch. To check the difference in the use of forms of grip, between the dominant and non dominant hand was used Wilcoxon test where differences were found in the use of all forms of grip, in his hands. To see if there was a difference between the parameters of force-time curve of the ways to grip seen between the dominant and non dominant hand was used T test for paired data in the parametric data and Wilcoxon test for non-parametric, difference lying only in the Index fall of force of the Full palmar. To correlate the use of a way to grip with the behavior of their parameters from force-time curve was used Pearson s correlation test for parametric data and Spearman correlation test for non-parametric, and correlation was found in four cases. Two correlations were positive: use of Digit-palmar grip and the maximum force Full Palmar in the dominant hand and Full Palmar grip use and time to the maximum force in the non dominant hand. The other two correlations are presented as negative: Full Palmar grip use and maximum force Palmar grip in the dominant hand and the use of the association of Digit-palmar and lateral pinch and reaction time of lateral pinch grip on non dominant hand. The data obtained from the study demonstrate the difference function and use of the hands of judo, and how the usage is correlated with the parameters of force-time curve, explaining a specific conditioning.

ASSUNTO(S)

judô força de preensão formas de pega educacao fisica ways to grab grip strength judo

ACESSO AO ARTIGO

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