Introduction: The step movement in volleyball is a fundamental skill that volleyball players must master, being the basis of the support of all other techniques of this sport. Objective: Explore the effect of ladder training on the mobility of high school volleyball players. Methods: Twenty high school male volleyball players aged 16-17 were selected as experimental volunteers. Randomly divided into experimental and control groups, 10 individuals in each group received a training intervention for 8 weeks, with ladder training added to the experimental group. Results: Both pieces of training resulted showed positive effects on the improvement of movement ability and speed and could effectively improve the athletes’ movement speed ability. Conclusion: Through systematic ladder training, the excitatory conduction time in the reflex arc of athletes was significantly reduced, leading to a faster response to various signal stimuli, bringing the athletes’ central nervous system to a state more prepared for sports practice. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
Introduction: The start of a sprint race is one of its most important stages. The reaction time at the start lays a psychological foundation for normal performance and performance improvement in its next three stages. Objective: To research the reaction time of athletes in the starting stage of the 100-meters sprint race. This helps analyze the internal reaction mechanism of the body, which receives signals and responds to actions. Methods: We use a bibliographical research, experimental comparison, and mathematical statistics to study the starting reaction time of sprinters. Results: The starting reaction time of male and female sprinters was basically at the same level. Conclusion: The starting time of Chinese sprinters needs to be improved. 400-m sprinters, especially, should devote more training to their starting reaction time. Level of evidence II; Therapeutic studies - investigation of treatment results.
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