Intensidade dos treinamentos e jogos oficiais de Badminton com atletas da seleção brasileira júnior

Abstract

Objective: Evaluate the intensity of official badminton training and games. Materials and Methods: Composed of twelve Brazilian Junior Badminton Team athletes, six boys (14,4 ± 2,1 years, 56,3 ± 12.3 kg, 167,1 ± 11,9 cm and 64,3 ± 7, 8 mL.kg-1.min-1) and 6 girls (15,7 ± 1 years, 53,7 ± 5,8 kg, 159,7 ± 5.7cm and 52,8 ± 3,5 mL.kg -1.min-1), monitored 19 sessions of training and 55 official matches at the XXVII Pan Am Junior Championships in singles and doubles matches for men and women. Initially, a progressive exercise test was performed for individual determination of maximal oxygen consumption and the relationship between heart rate (HR) and oxygen consumption (VO2). To monitor exercise intensity, FC and RPE were recorded during Badminton specific training (multishuttle (MS), control (CT), physical (PS), simulated game (GS)) and during official matches (OM). HRAVERAGE, %HRMAX, HR, TRIMP and HR zones were analyzed, next %VO2MAX and energy expenditure (EE) and RPE of the session were calculated. Statistical analysis: We used the Shapiro Wilk normality test, the analysis of the control variables was done through ANOVA one way. For the analysis of the HRMAX obtained in the different situations, duration, HRAVERAGE, %FCMAX, %VO2MAX, kcal.min-1, HR zones and TRIMP of the training ANOVA was used one way with repeated measures and then the test of Tukey. The association between variables through Pearson's correlation. For comparison between boys and girls the ANOVA two way with repeated measures and then the Tukey test. RPE analysis with the Mann-Whitney Rank Sum test. The significance level adopted for the comparisons was p <0.05. Results: The intensity expressed in HRAVERAGE was higher in OM (176 ± 6 bpm girls and 174 ± 8 bpm boys). Regarding the %HRMAX, the OM (86.8 ± 4.1% girls and 84.4 ± 5.0% boys) and in the GS (74.6 ± 2.3% girls and 75.0 ± 5.0% boys) were the most intense. In relation to the %VO2MAX in the girls it was higher in the OM (81.8 ± 5.7%) and in the boys the OW (79.2 ± 14.5%) were superior to the MS (54.5 ± 6.2%) and TT (61.4 ± 6.4). The EE in the girls was higher during the OM (10.7 ± 0.5 kcal.min-1) followed by the JS (8.6 ± 0.6 kcal.min-1) and in the OL boys (14.9 ± 4.6 kcal.min-1) were higher except for GS (11.1 ± 3.2 kcal.min-1). The RPE did not show a difference between boys and girls in training and OM on TRIMP and HR zones confirmed the high demand for OM and lower intensity of girls' training and equivalence in boys. Conclusion: OM presented higher intensity than training according to HRAVERAGE, %HRMAX, %VO2MAX and EE. The GS were among the types of training analyzed, which presented higher intensity and lower intensity MS. Highlighting the effective use of internal training load monitoring.