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Paper Information

Journal:   JOURNAL OF MODERN REHABILITATION   WINTER 2015 , Volume 8 , Number 4; Page(s) 11 To 20.
 
Paper: 

THE EFFECT OF FATIQUE DUE TO PLYOMETRIC TRAINING ON ACTIVITY PATTERN OF RECTUS FEMORIS MUSCLE IN DIFFERENT PHASES OF DEEP JUMP ON ACTIVE GIRL

 
 
Author(s):  AHMADABADI S., RAJABI H.*, GHARAKHANLOU R., TALEBIAN S.
 
* PHYSICAL EDUCATION FACULTY, TARBIAT MOALLEM UNIVERSITY
 
Abstract: 

Background and Aim: The aim of this study was to determine the effects of fatigue due to plyometric training on vertical jump ability and activity pattern of rectus femoris of dominant leg of high jump of active girls.
Materials and Methods: Seventeen females, mean age (21.5
±0.76 years) were randomly assigned to two experimental (n=10) and control (n=7) groups. Experimental group performed plyometric training and control group had no activity. Before and after training, vertical jump test using Ergo jump and electrical activity of rectus femoris muscle of dominant leg using electromyography were tested. The results of vertical jump test showed a decrease in performance (p: 0.04, F: 4.5) and fatigue process was confirmed. The raw EMG signal based on deep jump phases was divided in three phases and only 2 phases of the first were analyzed. In every phase, the maximum activity, amplitude and total time were obtained. respectively. M ultivariate analysis of variance (2´2) was used to compare of post-test of two groups.
Results: After one session training, rectus femoris maximum activity of the experimental group showed a significant decrease in pre-activation phase of motor program.
Conclusion: This study showed that neural fatigue due to plyometric training can occur in motor program (especially in pre-activation phase of motor program).

 
Keyword(s): DEEP JUMP, PLYOMETRIC TRAINING, VERTICAL JUMP, ELECTROMYOGRAPHY, RECTUS FEMORIS MUSCLE
 
References: 
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