Vertical jump testing in rugby league: A rationale for calculating take-off momentum
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.
© Copyright 2020 Journal of Applied Biomechanics. Human Kinetics. Kaikki oikeudet pidätetään.
Aiheet: | biomekaniikka analyysi hyppy testi rugby |
---|---|
Aihealueet: | biologiset ja lääketieteelliset tieteet urheilukilpailut |
DOI: | 10.1123/jab.2020-0100 |
Julkaisussa: | Journal of Applied Biomechanics |
Julkaistu: |
2020
|
Vuosikerta: | 36 |
Numero: | 6 |
Sivuja: | 370-374 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |