The reaction speed of children is closely related to the guidance of parents. Under normal circumstances, when a child expresses an action, the muscle tension should be controllable, which is the basis for the child to complete an action independently. Children with bradykinesia obviously lack the control of muscle tension, and often show weakness or stiffness, stiff posture and so on. The coordination of limbs is the basis for children to learn movements, and it is precisely because the coordination of limbs has reached the level required by movements that children can master specific movements at a certain age. No matter what kind of ball games, the response requirements for them are quite high. But at the same time, many ball games also need a lot of physical strength as support. When we train children's reaction ability, we can achieve the effect through ball games, but direct ball games are not recommended.

Because our main purpose is to train children's reaction ability, too much exercise can easily make children who fail to achieve the expected results consume too much physical strength. At this time, it is necessary to decompose such a complex motion system. Take table tennis as an example. Children's training can be to pad the ball with a racket instead of learning table tennis completely. In this way, the effect can be achieved, the amount of exercise and time consumption will not be too long, and the training effect of children can be ensured. Sensitivity refers to people's ability to quickly, accurately and harmoniously change various controllable variables such as body posture, movement direction and strength under any conditions. It is an extremely complicated comprehensive physical quality. Physiologically, under the control of the central nervous system, people show their bodies including strength, speed, coordination and flexibility. In addition to natural talent, this ability is highly plastic through specific exercises.

Problems such as slow movement, slow reaction and listlessness may be caused by poor sensitivity of children. In the long run, it will have a far-reaching impact on children's study and life. What parents call "slow response and slow action" is an intuitive manifestation of poor sensitivity. Sensitivity should start at an early age, and attention should be paid to children's psychological changes during training to avoid children's aversion or fear of sports because of tension and fear.