The Relationship of body mass index (BMI) to some types of special strength, flexibility, and the level of digital performance of throwing and jumping activities for students of athletics courses

This Study Aimed at identifying the relationship of the body mass index (BMI) to some types of special strength and flexibility of the back and shoulders muscles, the transition velocity and the digital level of throwing and jumping activities among students of athletics courses, the study used the descriptive approach on a sample of (52) students. Athletics courses, where (22) students practiced throwing activities, and (30) students practiced the activities of the jump. The results showed a strong statistically significant correlation of body mass index and elasticity of the back muscles, and a moderate correlation of the explosive force distinguished by the velocity of transition among the sample members, the Results also showed a strong correlation for muscle size and the digital level of the effectiveness of the shot, the presence of a non-significant intermediate relationship for the body mass index, types of strength, flexibility of the back muscles and the digital level of throwing activities, in addition to a strong statistically significant correlation of the transition velocity and the digital level of the triple jump. As well as the existence of a medium correlation relationship for the types of strength, flexibility and the digital level of jump events, the researchers recommends the necessity of Ella BMI to conduct research and similar studies to prepare proposed programs that work on introducing the importance of BMI in the sports field and its relationship with various individual and team sports in order to serve scientific research