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Sprint Mechanics in World-Class Athletes: A New Insight into the Limits of Human Locomotion
- Source :
- Scandinavian Journal of Medicine and Science in Sports, Scandinavian Journal of Medicine and Science in Sports, Wiley, 2015, 25 (5), pp.583-594. ⟨10.1111/sms.12389⟩, Scandinavian Journal of Medicine and Science in Sports, 2015, 25 (5), pp.583-594. ⟨10.1111/sms.12389⟩, Scandinavian Journal of Medicine and Science in Sports, Wiley, 2015, 25 (5), pp.583-594. 〈10.1111/sms.12389〉
- Publication Year :
- 2015
- Publisher :
- HAL CCSD, 2015.
-
Abstract
- Epub 2015 Jan 31; The objective of this study was to characterize the mechanics of maximal running sprint acceleration in high-level athletes. Four elite (100-m best time 9.95-10.29 s) and five sub-elite (10.40-10.60 s) sprinters performed seven sprints in overground conditions. A single virtual 40-m sprint was reconstructed and kinetics parameters were calculated for each step using a force platform system and video analyses. Anteroposterior force (FY), power (PY), and the ratio of the horizontal force component to the resultant (total) force (RF, which reflects the orientation of the resultant ground reaction force for each support phase) were computed as a function of velocity (V). FY-V, RF-V, and PY-V relationships were well described by significant linear (mean R(2) of 0.892 ± 0.049 and 0.950 ± 0.023) and quadratic (mean R(2) = 0.732 ± 0.114) models, respectively. The current study allows a better understanding of the mechanics of the sprint acceleration notably by modeling the relationships between the forward velocity and the main mechanical key variables of the sprint. As these findings partly concern world-class sprinters tested in overground conditions, they give new insights into some aspects of the biomechanical limits of human locomotion.
- Subjects :
- Adult
Male
[ SDV.MHEP.PHY ] Life Sciences [q-bio]/Human health and pathology/Tissues and Organs [q-bio.TO]
[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging
Performance
Acceleration
elite sprinters
Force orientation
Video Recording
Athletic Performance
Analyse du Mouvement en Biomécanique Physiologie et Imagerie
Biomechanical Phenomena
Running
Kinetics
Young Adult
power output
Exercise Test
[SDV.MHEP.PHY]Life Sciences [q-bio]/Human health and pathology/Tissues and Organs [q-bio.TO]
Humans
[PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph]
[ SDV.IB.IMA ] Life Sciences [q-bio]/Bioengineering/Imaging
[ PHYS.MECA.BIOM ] Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph]
Subjects
Details
- Language :
- English
- ISSN :
- 09057188 and 16000838
- Database :
- OpenAIRE
- Journal :
- Scandinavian Journal of Medicine and Science in Sports, Scandinavian Journal of Medicine and Science in Sports, Wiley, 2015, 25 (5), pp.583-594. ⟨10.1111/sms.12389⟩, Scandinavian Journal of Medicine and Science in Sports, 2015, 25 (5), pp.583-594. ⟨10.1111/sms.12389⟩, Scandinavian Journal of Medicine and Science in Sports, Wiley, 2015, 25 (5), pp.583-594. 〈10.1111/sms.12389〉
- Accession number :
- edsair.dedup.wf.001..6737ab183ff5230a122c5ad6f0bb8175