title: A comparison of time-motion performance between age groups in judo matches.
abstract: The aim of this study was to compare time-motion indicators during judo matches performed by athletes from different age groups. The following age groups were analysed: Pre-Juvenile (13-14 years, n = 522), Juvenile (15-16 years, n = 353); Junior (19 years, n = 349) and Senior (>20 years, n = 587). The time-motion indicators included: Total Combat Time, Standing Combat Time, Displacement Without Contact, Gripping Time, Groundwork Combat Time and Pause Time. Analysis of variance (ANOVA) one-way and the Tukey test, as well as the Kruskal-Wallis test and Mann-Whitney (for non-parametric data), were conducted, using P < 0.05 as significance level. The results showed that all analysed groups obtained a median of 7 (first quantile - 3, third quantile - 12) sequences of combat/pause cycles. In total time of combat, the result was: for Total Combat Time, Standing Combat Time and Gripping Time: Pre-Juvenile and Senior were significantly longer than Juvenile and Junior. Considering Displacement Without Contact, Junior was significantly longer than all other age groups. For Groundwork Combat Time, Senior was significantly longer than all other age groups and Pre-Juvenile was longer than Junior. These results can be used to improve the physiological performance in intermittent practices, as well as technical-tactical training during judo sessions.
authors.affiliation: University of São Paulo-School of Physical Education and Sport, Biodynamics, Av. Prof. Melo de Morais 65, Cidade Universitária, São Paulo, Brazil.
authors.forename: Bianca
authors.initials: B
authors.lastname: Miarka
authors.forename: Valéria Leme Gonçalves
authors.initials: VL
authors.lastname: Panissa
authors.forename: Ursula Ferreira
authors.initials: UF
authors.lastname: Julio
authors.forename: Fabrício Boscolo
authors.initials: FB
authors.lastname: Del Vecchio
authors.forename: Michel
authors.initials: M
authors.lastname: Calmet
authors.forename: Emerson
authors.initials: E
authors.lastname: Franchini
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000704:Analysis of Variance; D054874:Athletic Performance; D006801:Humans; D008297:Male; D016139:Martial Arts; D009048:Motor Skills; D018709:Statistics, Nonparametric; D013647:Task Performance and Analysis; D013995:Time; D055815:Young Adult