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Changes in power-force-velocity profile induced by 2 weeks of sprint interval training.
- Source :
-
The Journal of sports medicine and physical fitness [J Sports Med Phys Fitness] 2023 Jul; Vol. 63 (7), pp. 797-804. Date of Electronic Publication: 2023 Mar 16. - Publication Year :
- 2023
-
Abstract
- Background: This study aimed to determine the effects of a running sprint interval training protocol (R-SIT) on the sprint acceleration mechanical properties and jump performance. Eleven young male basketball players performed 6 R-SIT sessions for 2 weeks.<br />Methods: Each session consisted of 30-second running bouts repeated 4 to 7 times interspersed by 4 minutes of recovery. Performance was assessed from the individual power-force-velocity profiles (PVFP) over a 20-m sprint and from a countermovement jump at baseline (PRE) and after two weeks of training (POST).<br />Results: Sprint time decreased by 2% over the first 5 and 10 meters (P<0.01) while no significant changes in the time at 20 meters (-0.8%, P=0.09) nor in maximal velocity (-1%, P=0.31) were detected. The average PFVP showed an increase in theoretical maximal force and power output of 5 and 4%, respectively (P<0.05), with no change in theoretical maximal speed (P=0.26). Jump height and power also increased after training (5 and 3% respectively, P<0.01). Players improved their maximal sprint distance covered during the 30-second bouts and became more fatigue-resistant to long sprint events.<br />Conclusions: Six sessions of R-SIT helped to enhance short sprint times, acceleration and power output.
Details
- Language :
- English
- ISSN :
- 1827-1928
- Volume :
- 63
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- The Journal of sports medicine and physical fitness
- Publication Type :
- Academic Journal
- Accession number :
- 36924471
- Full Text :
- https://doi.org/10.23736/S0022-4707.23.14771-2