Effect of functional fatigue on position sense of ankle joint in female futsal players

Fatigue is one of the most important factors affecting the occurrence of  sport injuries. The purpose of this study was to determine the effect of functional fatigue on the  position sense of ankle joint on female futsal players. In this semi experimental study, 22 female futsal students of Isfahan  University with the mean and standard deviation of age 20 ± 1.8 years, weight 57 ± 2.40 kg, and height  161.5 ± 5.73 cm were selected as the study samples using convenient sampling technique.  Functional futsal fatigue was maked with Bangsbo modified futsal fatigue protocol. position sense of  ankle joint was measured with Isokinetic Biodex set in 15degree inversion and eversion and fatigue  with borg scale before and immediately after of doing protocol. Data was analyzed with dependent T  test and significance level of (p= 0/05). The results showed after fatigue, error rate of the players has significantly increased in the  reconstruction of the angle. Based on the information obtained from the Borg scale, the fatigue of  players in the post test (17.81±2.2) was significantly more than pretest (7±0.81). (P=0.000& Es=1.54). fatigue makes change in position sense of ankle joint.In present study used from modified futsal fatigue protocol for made fatigue in participant. The result showed after doing fatigue protocol, increased error rate of position sense. Therefore probability of injured increased.