نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه فیزیولوژی ورزشی و حرکات اصلاحی، دانشکده علوم ورزشی، دانشگاه ارومیه، ارومیه، ایران
2 استادیار حرکات اصلاحی و آسیب شناسی ورزشی، گروه فیزیولوژی ورزشی و حرکات اصلاحی، دانشکده علوم ورزشی، دانشگاه ارومیه، ارومیه، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and aims: according to studies motor learning instructions and strategies have been effective in anterior cruciate ligament injury prevention programs. Therefore, the purpose of current study was therefore to comparison the effect of motor learning strategies on some ACL injury risk factors in athletes.
Materials and Methods: 48 male athletes from three sports of handball, volleyball and basketball with an age range of 20 to 25 years were selected for this study and were randomly divided into four groups as follows: differential learning exercises, self-control feedback, external focus and control. by using motion analysis and EMG systems, respectively kinematics and kinetics parameters during landing were measured. To analyze the data, 4×2 repeated measures ANOVA was directed followed by post hoc comparison (Bonferroni] at the significant level of p≤0.05.
Results:The results of the present study showed that an increase in peak hip and knee flexion angles, decrease in peak knee abduction angle and gluteus Medius feedforward activity pretest to posttest values in both differential learning and external focus of attention groups. Also, an increase in pretest to posttest values of peak dorsiflexion angle and gluteus maximus feedforward activity in differential learning group were observed. In between groups comparison, there was a significant difference between differential group control group and self-control feedback group in peak knee flexion and abduction angles. Also, the differential learning group showed a significant difference in gluteus Medius feedforward activity compared to control group.
Conclusion: both differential learning and external focus of attention methods showed a positive effect on reducing the kinetic and kinematic risk factors of ACL injury, However, the results of the present study consider the differential learning method and the role of variability in training to be effective in preventing ACL injury and suggests the differential learning method for the greater benefit of athletes.
کلیدواژه‌ها [English]
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