[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Registration :: Submission :: Current Issue :: Archive :: Contact :: Search ::
:: Volume 9 - ::
Back to browse issues page mrj 2016, 9 - : 37-44
Comparing the leg stiffness in hopping test between female and male athletes
Mojtaba Ashrostaghi 1, Elham Shirzad2, Heydar Sadeghi3
1- PhD candidate of Sports Biomechanics, Department of Physical Education and Sport Sciences, Kharazmi University, Tehran, Iran , mojtabaashr@yahoo.com
2- Assistant Professor, Department of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran.
3- Full Professor, Department of Physical Education and Sport Sciences, Kharazmi University, Tehran, Iran.
Abstract:   (1458 Views)

Background and Aim: Leg stiffness has recognized as a parameter related to sports performance and injury risk. The aim of the present study was to compare of leg stiffness during hopping test between female and male athletes.

 

Materials and Methods: Thirteen females and 12 males of the best Iranian racket-players participated in this study and<span style="font-family:;" dir="RTL" new="" b="" fa;="" mitra";="" roman";="" "times="" roman";"="" 12pt;=""> performed the bilateral hopping test at a frequency of 2.2 Hz. The subjects' leg stiffness was measured and was normalized through dividing by their body weights. Independent samples t-test was used to compare the mean of research variables between the female and male groups.

 

Results: Leg stiffness in the females was significantly lower than the males (p< 0.001), however the body mass-normalized leg stiffness was not significantly different between two groups (p = 0.290).

 

Conclusion: The lower leg stiffness observed in the female athletes may be a factor justifying their weakness in speed-based performances during horizontal movements. Furthermore, non-significant difference in normalized leg stiffness between two groups may indicate using a risky strategy by the females in vertical movement to compensate for the less inherent stiffness of their tendinous and muscular structures. Choosing the proper training programs to change the leg stiffness, may be an effective method to enhance the performance and to decrease the injury risk.

 

Keywords: Leg stiffness, Female and male athletes, Sports performance, Injury risk

Keywords: Leg stiffness, Female and male athletes, Sports performance, Injury risk
Full-Text [PDF 211 kb]   (663 Downloads)    
Type of Study: Research | Subject: Special
Received: 2016/03/15 | Accepted: 2016/03/15 | Published: 2016/03/15
Send email to the article author

Add your comments about this article
Your username or email:

Write the security code in the box >



XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Ashrostaghi M, Shirzad E, Sadeghi H. Comparing the leg stiffness in hopping test between female and male athletes. mrj. 2016; 9 (S3) :37-44
URL: http://mrj.tums.ac.ir/article-1-5445-en.html
Back to browse issues page Volume 9 -
فصلنامه توانبخشی نوین Journal of Modern Rehabilitation
Persian site map - English site map - Created in 0.161 seconds with 827 queries by yektaweb 3392