IMPACTS OF CROSSFIT TRAINING ON THE TENNIS ATHLETE’S PERFORMANCE

ABSTRACT Introduction: The competitive level of tennis has increased in recent years, challenging researchers to promote a higher level of endurance and performance of its practitioners. Objective: Analyze the impacts of CrossFit training on the performance of tennis athletes. Methods: This work conducted a four-week experiment with 50 professional tennis players, introducing a protocol based on CrossFit training to the experimental group. Levels of sports endurance and competition performance were statistically analyzed before and after the experiment. It was also analyzed whether CrossFit training could effectively improve tennis players’ sports endurance and performance level. Results: After the intervention, the time required for the tennis players to take off and hit the ball 20 times in three steps after the recoil was reduced from 71.12 seconds before the experiment to 60.04 seconds in the experimental group. The forehand strike’s linear and diagonal speeds increased by 11.00% and 6.57%, respectively. And the number of effective and accurate balls in the recoil increased by 5.87% and 5.58%. Conclusion: CrossFit training can improve tennis players’ sporting endurance, playing a positive role in improving the players’ level. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.