Estratégia de ritmo e advertências técnicas na Copa Brasil de Marcha Atlética

Abstract

Knowing the pacing strategy (PS) at different distances in race walking has been shown to be appropriate to outline problems associated with physical performance and the technical execution of the movements. Starting from three different articles, the objectives of this work are: 1) Describe the overall pace strategy in different genders, classes, performances in race walking; 2) Check the association of warnings with the speed in race walking tests; 3) Compare the pace strategy planned by the athlete to run during a competitive event race walking. Participated 89 athletes (45 men and 44 women) of national and international competitors in Brazil Cup Race Walking 2015 being distributed in the categories sub 18, sub 20 and adult. Of the 89 participating athletes, 53 finished the race, 27 were disqualified and 9 abandoned. Digital cameras and cones were positioned every 10% of the total distance of the race for the acquisition of split times in order to further elaborate the variations of PS of each athlete. The PS was divided into three sections, the initial (0% to 10% of the total distance of race), intermediate (10% to 90%) and final (90% to 100%) in order to verify the change of speed between these parts. For the evaluation of warnings received by athletes in tests of race walking, the dockets of the race were obtained. It was later determined that kilometer from the race the athlete was warned and what warning received. For the evaluation of the planned strategy, a questionnaire with graphs showing the main PS curves existing averaged medium and long distance was presented to the athletes before the start of the race, and they marked what strategy planned for race that would dispute. The main results indicate that: 1) the PS in Brazilian athletes followed a positive pattern in which athletes begin competition at high speed and gradually slow down until the finish line. There was no significant influence of gender factors or performance on ER; 2) The athletes are higher amount of bent knee, and these concentrated between the session 20% to 60% of the race. The average speed and the slower speed observed over the test correlated with the bent knee; 3) It is observed that most of the subjects planned constant or negative pacing strategy, however, the analysis of the executed strategy, it appears that most of the subjects made positive pacing strategy.