fahimeh rashidi

Recent studies have examined the risk factors associated with lower limb injuries. This study aimed to explore the effect of 12 sessions of feedback corrective exercises on the kinematic indicators of the knee and the Electromyography Activity (EMG) of the muscles of the lower limbs of female wushu players. The present study has a quasi-experimental design with a pre-test/post-test design and a control group.

In this study, 16 female wushu players were selected by the available sampling method and placed in two groups of exercise and control. The exercise group performed feedback correction exercises for 12 sessions. Before and after the knee varus exercises, we measured, pelvic drop, and EMG of the lower limb muscles of both groups in the SLS movement. The independent two-sample t-test was used to examine intergroup differences and the two-group correlated t-test was used to compare intra group sizes. To analyze the statistical data, SPSS V. 23 was used (P≤0.05)

The results showed a significant difference in knee varus between the experiment group and the control group in the pre-test and there was a significant difference between the pelvic drop in the pre-test and post-test of the experiment group compared with the control. The angle of the knee varus in the exercise group showed a significant difference with the control group. The EMG results of the muscles in the pre-test and post-test were significantly different.

Based on the findings of the present study, the feedback correction exercise may improve motion control in wushu players. It also improved neuromuscular weakness in the subjects. According to the results and based on less muscle activity during movements, this exercise will reduce fatigue and the risk of injury.

The present study aims to evaluate the Pintrich and De Groot Educational Self-Efficacy Beliefs Scale at the students of Semnan University. For this purpose, 300 students (109 males and 191 females) were selected using multi-stage cluster sampling method and answered and Educational Self-Efficacy Scale.To determine the construct validity of Educational Self-Efficacy Scale, factor analysis and convergent validity methods were used. A factor with a special value greater than one was achieved based on scree test which shows the special values graph which this factor together explained 85/44% of the total variance of the test. The concurrent implementation of Pintrich and De Groot Educational Self-Efficacy Scale with students Self-Efficacy Questionnaire (CASES) was used to calculate the convergent validity of Educational Self-Efficacy Scale. The results showed that the correlation coefficient between these two measures is 42/0 which is significant at the level 5 / 0≥P. The reliability ofEducational Self-Efficacy Scale was calculated the internal consistency method and Cronbach's alpha coefficient.The results showed that the reliability of Educational Self-Efficacy is scale is 845/0 that is acceptable and satisfying. It is concluded according to appropriate validity and reliability as well as having globally reputable research background thatPintrich and De Groot Educational Self-Efficacy Scale is a perfect tool to measure self-efficacy.