Version 1
: Received: 18 August 2017 / Approved: 21 August 2017 / Online: 21 August 2017 (09:08:50 CEST)
How to cite:
Cheraghi, M.; Sarvestan, J.; Sebyani, M.; Shirzad, E. Stretch-Shortening Cycle in Countermovement Jump: Exclusive Review of Force-Time Curve Variables in Eccentric and Concentric Phases. Preprints2017, 2017080070. https://doi.org/10.20944/preprints201708.0070.v1
Cheraghi, M.; Sarvestan, J.; Sebyani, M.; Shirzad, E. Stretch-Shortening Cycle in Countermovement Jump: Exclusive Review of Force-Time Curve Variables in Eccentric and Concentric Phases. Preprints 2017, 2017080070. https://doi.org/10.20944/preprints201708.0070.v1
Cheraghi, M.; Sarvestan, J.; Sebyani, M.; Shirzad, E. Stretch-Shortening Cycle in Countermovement Jump: Exclusive Review of Force-Time Curve Variables in Eccentric and Concentric Phases. Preprints2017, 2017080070. https://doi.org/10.20944/preprints201708.0070.v1
APA Style
Cheraghi, M., Sarvestan, J., Sebyani, M., & Shirzad, E. (2017). Stretch-Shortening Cycle in Countermovement Jump: Exclusive Review of Force-Time Curve Variables in Eccentric and Concentric Phases. Preprints. https://doi.org/10.20944/preprints201708.0070.v1
Chicago/Turabian Style
Cheraghi, M., Masoud Sebyani and Elham Shirzad. 2017 "Stretch-Shortening Cycle in Countermovement Jump: Exclusive Review of Force-Time Curve Variables in Eccentric and Concentric Phases" Preprints. https://doi.org/10.20944/preprints201708.0070.v1
Abstract
The importance of vertical jump in sport fields and rehabilitation is widely recognized. Furthermore, Force-Time variables of vertical jump are factors affecting jumping height. Exclusive review of each of this variables, in eccentric and concentric phases, can lead to a specific focus on them during jumping exercises. So, the aims of his study were to a) reviewing the relationship between force-time curve variables of eccentric and concentric phases with jump height and b) description of this variables in Iran national youth volleyball players society. This is an observational study. 12 elite volleyball player (Male, Iran national youth volleyball players, 17±0.7 years) have participated in this study. Correlation between Force-Time variables - included peak force (PF), relative peak force (RPP), peak power (PP), average power (AP), relative peak power (RPP), and Modified Reactive Strength Index (MRSI) - in eccentric and concentric phases and ultimate jump height has been studied. Results showed that the average power (r=0.7) and relative peak force (r=0.75) of concentric phase and MRSI (r=0.83) have significant correlation with ultimate jump height (JH). Relative peak power and average power of concentric phase can massively effect Jump Height in sports like volleyball, which vertical jump is an integral part of them. Focus on both of these factors, which has been studied in this research, in training programs, can improve athlete jump performance significantly.
Public Health and Healthcare, Physical Therapy, Sports Therapy and Rehabilitation
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
