Effects of Unilateral, Bilateral and Combined Resistance Training on the Speed and Accuracy of the Serve in Youth Tennis Players

backgrounds

Originally known as lawn tennis, tennis originated in France and became official in England. There is evidence that people participating in tennis can provide numerous health benefits. Secondly, tennis is a sport with anaerobic metabolism, supplemented by high-intensity aerobic metabolism, which means that tennis has a great demand for speed, strength and other physical qualities. However, in recent years, China's athletes have been in debt for a long time, resulting in weak basic qualities and lack of special ability, which restricts the development of China's athletes. In order to achieve good sports performance, the training method is very important. In the case of adolescents, where strength is gradually declining, evidence suggests that the implementation of scientific resistance training under perfect supervision can help the development of physical fitness and athletic performance. Secondly, resistance training is mostly focused bilaterally, and the advantage of unilateral resistance training is that it is superior to the BLD effect to improve strength than bilateral training. Evidence suggests that isometric strength gains after unilateral resistance training are almost twice as high as those after bilateral resistance training.

Problem statement

Strength levels in today's youth are declining, and evidence suggests that traditional training in youth focuses on bilateral and ignores movement patterns and focuses on single joints, resulting in low stroke power and poor speed in youth tennis players. Existing tennis training has focused on bilateral resistance training or tennis-specific technique training, but the results have not been significant. Tennis serve is very important, and it is the key to win in tennis matches. Evidence shows that muscle strength and explosive power are significantly related to tennis serve. Therefore, it is important to focus on the effects of different resistance training on tennis serve. Secondly, unilateral training is in line with the sport-specific characteristics and compound resistance training is significant for strength as well as explosive power, so these two training modalities are crucial for tennis. To summarize the problem statement of this study, there are three main problem statements, firstly, the importance of serve technique in tennis program, secondly, unilateral training is in line with the specific characteristics of unilateral movement of tennis serve, and thirdly, the importance of combined resistance training in tennis.

Proposed solution Different forms of resistance training will provide different benefits to the athlete, and the sport of tennis is consistent with unilateral movement, in order to achieve better athletic performance as well as skill performance. The researcher will perform the following manipulation.