As a new strength training method, running form control training has been widely used in foreign athletes’ strength training and public rehabilitation. As a means of auxiliary strength training, running form strength has attracted wide attention in China. In order to keep up with the latest international strength training theory and technology, the reaction force of people’s running style on the ground was compared with the kinematics and dynamics of lower limbs and studied deeply. The significantly reduced load rate in the absence of running posture transformation is speculated to increase to the adaptation strategy of social body after changing shoe conditions. After training, the load rate was deep than that of the control group, increasing that even though the load rate could be reduced by the training method adapted to the ground hardness, the training effect with a clear goal was more significant. Through the comparison of lower limb joint kinematics and training effect, some flexor strength training methods can be added, and the load intensity and quantity can be appropriately increased, so that the proportion of the strength level of the extensor muscle of the lower limb joint can be coordinated, so as to better improve the coordination force level.

In order to study the biomechanical characteristics of squat jump and half-squat jump, analysis and comparison were made. This paper tests and analyzes the kinematics and dynamics of 63 young men’s squat jump, and synchronously collects the kinematics and dynamics data of subjects in the process of weight-bearing squat, in-situ free jump, and high platform landing. The experimental results showed that there was significant difference in knee joint angle at the time of toe off ( P  < 0.05), and there was significant difference in ankle joint angle at the time of toe off ( P  < 0.05). The time law of squat jump and semi squat jump in vertical jump was the same. In vertical jump, the reaction time law of squat jump and semi squat jump is the same, and the recovery standing time is the longest, followed by the take-off time and reaction time. The two vertical jump methods have no effect on the height, time, and speed of exercise take-off.