‏ Karate, as a martial art, means a method of fighting and defending with bare hands (without weapons) that takes place from quick strikes. Considering that the correct use of muscles plays an important role in the execution of the mawashi technique in karate, stabilizing muscles during knee extension, especially the middle quadriceps muscle (rectus femoris muscle) is of great importance. It has been observed that most sports injuries occur during fatigue for the athlete. The purpose of this study is to compare the effect of fatigue on the kinematics and kinetics of Mwashi Geri and Ura Mwashi movements in female amateur and elite karate athletes. The research population is the women present in the national and amateur karate team in Tehran province. The statistical sample of this research includes 28 athletes from Tehran province, of which 14 are amateur athletes and 14 are elite national athletes, who will be selected based on the inclusion and exclusion criteria of the research.

All the stages of the test, which include general and specialized warm-up and the execution of tests, are performed in two stages, pre-test and post-test, in a laboratory, and the conditions of the laboratory, such as light, temperature, etc., are considered the same for all the subjects. will be All the measurements of the subjects are done by a researcher.