2011, Volume 7
Endurance in judogi grip strength tests: comparison between elite and non-elite judo players
Emerson Franchini1, Bianca Miarka1, Luciano Matheus2, Fabrício Del Vecchio3
1Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil
2Grêmio Recreativo Barueri, Barueri, Brazil
3Superior School of Physical Education, Federal University of Pelotas, Pelotas, Brazil, Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil
Author for correspondence: Emerson Franchini; Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil; email: efranchini[at]usp.br
Background and Study Aim: The ability to develop a strong grip and maintain it during a judo match has become an important element for judo athletes. Therefore, the purpose of this investigation was to examine differences between measurements of maximal isometric time on judogi pull-up, and number of repetitions during dynamic judogi pull-up.
Material and Methods: The sample was composed by two groups: 16 high-level judo athletes from the male Brazilian National Team and 12 male state-level judo athletes, with at least one athlete per weight category. The tests were compared through analysis of co-variance (body mass as co-variable), followed by a post-hoc test (Scheffé). Significance level was set at 5%.
Results: No difference was found in the isometric test: Brazilian Team: 35±18s; Regional: 39±14s. However, the Brazilian Team performed a high number of repetitions (12±5 rep) compared to regional group (9±4 rep) during the dynamic grip strength endurance test.
Conclusions: Thus, dynamic grip strength endurance seems to be a discriminating variable between judo athletes, probably because judo combat involves many elbow extensions and flexions in order to avoid the opponent’s grip and to subdue them.
Key words: hand-grip strength, high-level athletes, judo, judogi, specific strength exercise , strength endurance