Journal article
Intrasession and intersession reliability of running mechanics during treadmill sprints
International Journal of Sports Physiology and Performance, Vol.11(4), pp.432-439
2016
Abstract
Purpose:
To determine the intrasession and intersession (ie, within- and between-days) reliability in treadmill sprinting-performance outcomes and associated running mechanics.
Methods:
After familiarization, 13 male recreational sportsmen (team- and racket-sport background) performed three 5-s sprints on an instrumented treadmill with 2 min recovery on 3 different days, 5–7 d apart. Intrasession (comparison of the 3 sprints of the first session) and intersession (comparison of the average of the 3 sprints across days) reliability of performance, kinetics, kinematics, and spring-mass variables were assessed by intraclass correlation coefficient (ICC) and coefficients of variation (CV%).
Results:
Intrasession reliability was high (ICC > .94 and CV < 8%). Intersession reliability was good for performance indices (.83 < ICC < .89 and CV < 10%, yet with larger variability for mean velocity than for distance covered or propulsive power) and kinetic parameters (ICC > .94 and CV < 5%, yet with larger variability for mean horizontal forces than for mean vertical forces) and ranged from good to high for all kinematic (.88 < ICC < .95 and CV ≤ 3.5%) and spring-mass variables (.86 < ICC < .99 and CV ≤ 6.5%). Compared with intrasession, minimal detectable differences were on average twice larger for intersession designs, except for sprint kinetics.
Conclusion:
Instrumented treadmill sprint offers a reliable method of assessing running mechanics during single sprints either within the same session or between days.
Details
- Title
- Intrasession and intersession reliability of running mechanics during treadmill sprints
- Authors/Creators
- O. Girard (Author/Creator)F. Brocherie (Author/Creator)J-B Morin (Author/Creator)G.P. Millet (Author/Creator)
- Publication Details
- International Journal of Sports Physiology and Performance, Vol.11(4), pp.432-439
- Publisher
- Human Kinetics
- Identifiers
- 991005542364307891
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- 1 Clinical & Life Sciences
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- 1.172.414 Training Optimization
- Web Of Science research areas
- Physiology
- Sport Sciences
- ESI research areas
- Clinical Medicine