نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری تربیت بدنی ویژه، دانشکده تربیت بدنی دانشگاه گیلان، گیلان، ایران
2 دکترای حرکات اصلاحی و آسیب شناسی ورزشی، استادیار دانشکده تربیت بدنی دانشگاه تهران، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and aim: Anterior cruciate ligament injury occurs in females 2 to 8 times more than it does in males. One of the reasons for this is existing deficits in neuromuscular system of females. So, the purpose of the present study was to investigate the differences between male and female volleyball players in pattern and electromyography activity of quadriceps and hamstring muscles in jump-landing task.
Materials and Methods: In the present study 18 collegiate volleyball players (9 men and 9 women) participated on a voluntary basis. The results of muscles activity and onset time in landing were compared between male and female athletes.
Results: Feed forward activity of quadriceps muscles in females are significantly more than that in males (p<0.001). In the hamstring activity, there is no significant difference between men and women. Hamstring to quadriceps activity ratio in women was observed to be significantly less than that in men in feed forward phase (p<0.05).
Conclusion: The results of studies in the field of gender differences are inconsistent and this can be related to our few samples or differences in the samples' physical fitness and sport type. The only common result of all studies is improvement of neuromuscular system and reinforcement of hamstring.
کلیدواژهها [English]