McMahon, JJ 
ORCID: https://orcid.org/0000-0001-9952-7846, Lake, JP, Ripley, NJ ORCID: https://orcid.org/0000-0003-4066-0591 and Comfort, P ORCID: https://orcid.org/0000-0002-1131-8626
2020,
'Vertical jump testing in rugby league: a rationale for calculating take-off momentum'
, Journal of Applied Biomechanics, 36 (6)
, pp. 370-374.
Abstract
The purpose of this study was to determine the usefulness of calculating jump take-off momentum in rugby league (RL) by exploring its relationship with sprint momentum, due to the latter being an important attribute of this sport. Twenty-five male RL players performed 3 maximal-effort countermovement jumps on a force platform and 3 maximal effort 20-m sprints (with split times recorded). Jump take-off momentum and sprint momentum (between 0 and 5, 5 and 10, and 10 and 20 m) were calculated (mass multiplied by velocity) and their relationship determined. There was a very large positive relationship between both jump take-off and 0- to 5-m sprint momentum (r = .781, P < .001) and jump take-off and 5- to 10-m sprint momentum (r = .878, P < .001). There was a nearly perfect positive relationship between jump take-off and 10- to 20-m sprint momentum (r = .920, P < .001). Jump take-off and sprint momentum demonstrated good–excellent reliability and very large–nearly perfect associations (61%–85% common variance) in an RL cohort, enabling prediction equations to be created. Thus, it may be practically useful to calculate jump take-off momentum as part of routine countermovement jump testing of RL players and other collision-sport athletes to enable the indirect monitoring of sprint momentum.
| Item Type: | Article |
|---|---|
| Schools: | Schools > School of Health and Society |
| Journal or Publication Title: | Journal of Applied Biomechanics |
| Publisher: | Human Kinetics |
| ISSN: | 1543-2688 |
| Depositing User: | NJ Ripley |
| Date Deposited: | 06 Mar 2023 11:22 |
| Last Modified: | 06 Mar 2023 11:22 |
| URI: | https://usir.salford.ac.uk/id/eprint/66535 |
Actions (login required)
 |
Edit record (repository staff only) |
Tools
Tools