2016, Volume 12
Short-term low-volume high-intensity intermittent training improves judo-specific performance
Emerson Franchini1, Ursula Julio1, Valéria Panissa1, Fábio Lira2, Marcus Agostinho1, Braulio Branco1
1Sport Department, School of Physical Education and Sport, University of São Paulo, Brazil, São Paulo
2Department of Physical Education, Paulista State University , Brazil, Presidente Prudente
Author for correspondence: Emerson Franchini; Sport Department, School of Physical Education and Sport, University of São Paulo, Brazil; email: efranchini[at]usp.br
Background and Study Aim: An important aspect concerning the specificity principle is related to the time structure of the sport. The aim of our study was the effects of short-term low-volume high-intensity intermittent training (HIIT) added to traditional judo training on physiological and performance responses to judo-specific tasks.
Material and Methods: Thirty-five judo athletes were randomly allocated to a control group (n = 8) and 3 HIIT groups: (1) lower-body cycle-ergometer (n = 9); (2) upper-body cycle-ergometer (n = 9); (3) uchi-komi (technique entrance) (n = 9). All protocols were constituted by 2 blocks of 10 sets of 20s of all-out effort, with 10s interval between sets and 5-min between blocks, executed twice per week for four weeks. Pre and post-training the athletes performed the Special Judo Fitness Test (SJFT) and a match simulation, with blood lactate, hormones (cortisol, C, and testosterone, T) and muscle damage marker (creatine kinase, CK, lactate dehydrogenase, LDH, aspartate aminotransferase, AST and alanine aminotransferase, ALT) measurements.
Results: There was an increase (p = 0.031) in the number of throws in the SJFT for the upper-body group, while decreasing the HR immediately after the SJFT and the number of sequences in standing position for the lower-body group (p<0.001 and p = 0.034, respectively), the index in the SJFT for the uchi-komi group (p = 0.015) and the CK concentration (p = 0.014) in the match simulation for the upper-body group. T/C ratio increased (p = 0.028) after the match simulation in the post-training.
Conclusion: All training modes improved performance, biochemical and hormonal response to judo-specific performance, but each group adapted in a different way.
Key words: training intensity, combat sport, athletes, training load, uchi-komi