HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Contribution of segmental kinetic energy to forward propulsion of the centre of mass: Analysis of sprint acceleration

Abstract : This study aimed to measure the contribution of each body segment to the production of total body kinetic energy (KE) during a 40-m sprint. Nine recreational sprinters performed two 40-m sprints wearing a MVN Biomech suit (Xsens). Data recorded were used to calculate total body KE, and the KE of each segment. The KE of each segment was then expressed as a percentage of the total body KE. We divided the sprint into three phases: 1 – start to maximal power (Pmax), 2 – Pmax to maximal velocity (Vmax), and 3 – Vmax to the end of the 40 m. Total body KE increased from the start to the end of the 40-m sprint (from 331.3 ± 68.4 J in phase 1 to 2378.8 ± 233.0 J in phase 3; p ≤ 0.001). The contribution of the head–trunk increased (from 39.5 ± 2.4% to 46.3 ± 1.1%; p ≤ 0.05). Contribution of the upper and lower limbs decreased over the three phases (respectively from 15.7 ± 2.5% to 10.6 ± 0.6% and from 44.8 ± 2.1% to 43.1 ± 1.5%; p ≤ 0.05). This study revealed the important contribution of the trunk to forward propulsion throughout the entire acceleration phase.
Complete list of metadata

https://hal.univ-reims.fr/hal-03644125
Contributor : Nicolas Houel Connect in order to contact the contributor
Submitted on : Friday, May 13, 2022 - 5:06:16 PM
Last modification on : Tuesday, May 17, 2022 - 3:37:32 AM

File

Segmental Contribution_HAL.pdf
Files produced by the author(s)

Identifiers

Citation

Jean Slawinski, Nicolas Houel, Camille Moreau, Alexia Mahlig, Daniel Dinu. Contribution of segmental kinetic energy to forward propulsion of the centre of mass: Analysis of sprint acceleration. Journal of Sports Sciences, Taylor & Francis, inPress, ⟨10.1080/02640414.2022.2066829⟩. ⟨hal-03644125⟩

Share

Metrics

Record views

0

Files downloads

0