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Paper Information

Journal:   SCIENTIFIC JOURNAL OF REHABILITATION MEDICINE   SPRING 2016 , Volume 5 , Number 1 ; Page(s) 31 To 40.
 
Paper: 

DIFFERENCES IN QUADRICEPS AND HAMSTRING ACTIVITY BETWEEN MALE AND FEMALE VOLLEYBALL PLAYERS DURING JUMP-LANDING

 
 
Author(s):  POURMAHMOUDIAN PEDRAM*, MINOONEJAD HOOMAN
 
* FACULTY OF PHYSICAL EDUCATION, UNIVERSITY OF GUILAN, GUILAN, IRAN
 
Abstract: 

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.

 
Keyword(s): JUMP-LANDING, QUADRICEPS DOMINANCE, ANTERIOR CRUCIATE LIGAMENT, HAMSTRING TO QUADRICEPS RATIO, VOLLEYBALL PLAYER
 
References: 
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