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:: Volume 23, Issue 1 (Scientific Journal of Kurdistan University of Medical Sciences 2018) ::
SJKU 2018, 23(1): 84-92 Back to browse issues page
The effects of two traditional and post-activation potentiation warm-up methods on ground reaction forces during squat-jump
Sajad Avazzadeh Samani 1, Mehrdad Anbarian Dr * 2, Mohammad Hossein Ghasemi 3
1- Faculty of Sport Sciences, Bu Ali Sina University, Hamedan, Iran.
2- Professor Faculty of Sport Sciences, BuAli Sina University, Hamedan, Iran , anbarian@basu.ac.ir
3- PhD candidate, Faculty of Sport Sciences, Bu Ali Sina University, Hamedan, Iran.
Abstract:   (656 Views)
Background and Aim: A proper warm-up method can be used as a strategy to improve performance of athletes in various sport fields. The purpose of the present study was to assess the effect of traditional and post-activation potentiation warm-up methods on ground reaction forces during squat jump.
Materials and Methods: Fourteen trained male athletes (age=26.5±3.64 years, weight=70±10.65 kg, height=180 ± 8.39 cm) participated voluntarily in this study. Athletes randomly performed three different warm-up protocols on three separate days: typical traditional warm-up method, static and dynamic post-activation potentiation implementing half-squat at 90% 1RM. After performing the warm-up protocols, the subjects completed squat jump test on a force platform in order to assess ground reaction forces.
Results: In the jumping and landing phases, the peak values of horizontal and vertical ground reaction forces in the traditional warm-up method were significantly lower than those in the static (P=0.001 for both phases) and dynamic (P=0.001 for both phases) PAP warm-up methods. Also, we found a significant difference in the horizontal peak ground reaction force in the jumping phase between the static and dynamic PAP warm-up methods (P=0.003). In addition, significant differences in the vertical jump height and rate of force development (RFD) were observed between the traditional and static PAP warm-up methods (P=0.001 for both methods), between the traditional and dynamic PAP warm-up methods (P=0.001 for both methods), and also between the static and dynamic PAP warm-up methods (P=0.002 and P=0.003, respectively).
Conclusion: According to the results of this study, it seems that the PAP warm-up method may have more advantage over traditional warm-up method in order to improve record and performance of the athletes during squat jump movement.
Keywords: Warm-up, Ground reaction force, Post-activation potentiation (PAP), Squat jump.
 
Received: Sep 6, 2017     Accepted: Jan 8, 2018
Keywords: Warm-up, Ground reaction force, Post-activation potentiation (PAP), Squat jump.
Full-Text [PDF 606 kb]   (125 Downloads)    
Type of Study: Research | Subject: General
Received: 2018/03/17 | Accepted: 2018/03/17 | Published: 2018/03/17
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Volume 23, Issue 1 (Scientific Journal of Kurdistan University of Medical Sciences 2018) Back to browse issues page
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
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