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RATIO OF THE SPEED COMPONENTS OF SKI RACERS AT SPORTS TRAINING STAGES IN TIME TRIALS (0.42 Mb, pdf) Read
Authors:
Reutskaya Elena Aleksandrovna
Poltoratskaya Tamara Vladimirovna
Annotation:

The purpose: a study of the rationality of motor actions of ski racers at different sports training stages.

Methods and organization of the research. 202 female skiers and 201 male skiers participated in the study. The authors carried out video shooting with a Sony HDR-CX360E video camera with a maximum resolution of 1920x1080 and a shooting speed of 50 frames per second, in order to assess motion techniques.

Results and discussion. The comparative characteristics of the speed components of ski racers in time-trial competitions has shown that ski racers have a significant decrease in cycle frequency and  cycle length at sports training stages. Consequently, movement speed decreases from the first to the last lap of the race.

Conclusion. The research has revealed that ski racers choose the quick start tactics at every sports training stage, and then they try to maintain a high-speed rate until the end of the race. Meanwhile, the skiers maintain high speed due to the power component of movement techniques at the beginning of the race, while the main energy systems of the body cope with fatigue and ensure speed maintenance. The study of ski racers at different sports training stages has demonstrated that the high movement speed is maintained by the speed component of movement techniques.

Bibliography:

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