Background and Aims Since, there is a direct relationship between achieving the best athletic performance and minimizing the damage potential with people's ability to perform the technique, this study aimed to compare the selected biomechanical variables during subsequent jump-landings between professional and semi – professional karate athlete. Methods The data of 18 young girls karate athlete and member of the national team camp (professional-9 people) and selected karate athlete of Mazandaran province (semi- professional-9 people) were collected and statistically analyzed. Results The results in the left foot of both groups were higher than in the right foot. There was a significant difference between the earth's reaction force and the change of mass center to the center of pressure (stress) in the internal-external non – professional karate athletes and the left foot of the professional and non – professional. There was a significant difference between the earth's reactions force in the posterior-anterior direction between the right and left foot of the professional group and the right and left foot of the non – professional group and the right and left foot of the both group in the change of mass center to the center of pressure between the right and left foot of these two groups. But there was no significant difference between the time to achieve stability. Conclusion According to the results, the variables of the earth's reaction force and change in the mass center to the center of pressure and the time needed to achieve stability for karate athletes can be used as an index to evaluate the level of ability performance and detect the potential of damage occurrence in professional and semi-professional karate athletes.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.