Uphill sprinting load – and force – velocity profiling : Assessment and potential applications
Journal article
Delaney, Jace A., McKay, Benjamin A., Radcliffe, Jim, Benton, Dean T., Samozino, Pierre, Morin, Jean-Benoit and Duthie, Grant M.. (2022). Uphill sprinting load – and force – velocity profiling : Assessment and potential applications. Journal of Sports Sciences. 40(3), pp. 281-287. https://doi.org/10.1080/02640414.2021.1992868
Authors | Delaney, Jace A., McKay, Benjamin A., Radcliffe, Jim, Benton, Dean T., Samozino, Pierre, Morin, Jean-Benoit and Duthie, Grant M. |
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Abstract | This study aimed to quantify the validity and reliability of load–velocity (LV) relationship of hill sprinting using a range of different hill gradients and to describe the effect of hill gradient on sprint performance. Twenty-four collegiate-level athletes performed a series of maximal sprints on either flat terrain or hills of gradients 5.2, 8.8 and 17.6%. Velocity–time curves were recorded using a radar device. LV relationships were established using the maximal velocity achieved in each sprinting condition, whilst force–velocity–power (FVP) profiles were established using only the flat terrain sprint. LV profiles were shown to be valid (R2 = 0.99) and reliable (TE < 4.4%). For every 1-degree increase in slope, subjects’ velocity decreased by 1.7 ± 0.1% on average. All the slopes used represented low resistance relative to the entire LV spectrum (<25% velocity loss). Subjects who exhibited greater horizontal force output at higher velocities on flat terrain were most affected by the gradient of the hill. Hills of gradients up to 17.6% do not provide sufficient resistance to optimize power development. However, such hills could be used to develop late-stage technical ability, due to the prolonged horizontally oriented body position that occurs as subjects attempt to overcome the acceleration due to gravity. |
Keywords | sprint training; acceleration; mechanical power |
Year | 2022 |
Journal | Journal of Sports Sciences |
Journal citation | 40 (3), pp. 281-287 |
Publisher | Routledge |
ISSN | 0264-0414 |
Digital Object Identifier (DOI) | https://doi.org/10.1080/02640414.2021.1992868 |
Scopus EID | 2-s2.0-85118536368 |
Open access | Published as ‘gold’ (paid) open access |
Page range | 281-287 |
Publisher's version | License File Access Level Open |
Output status | Published |
Publication dates | |
Online | 02 Nov 2021 |
Publication process dates | |
Accepted | 08 Oct 2021 |
Deposited | 24 Nov 2022 |
https://acuresearchbank.acu.edu.au/item/8y763/uphill-sprinting-load-and-force-velocity-profiling-assessment-and-potential-applications
Download files
Publisher's version
OA_Delaney_2022_Uphill_sprinting_load_and_force-velocity.pdf | |
License: CC BY-NC-ND 4.0 | |
File access level: Open |
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