Effects of Running Velocity on Running Kinetics and Kinematics

Brughelli, M, Cronin, J, and Chaouachi, A. Effects of running velocity on running kinetics and kinematics. J Strength Cond Res 25(4)933-939, 2011-Sixteen semiprofessional Australian football players performed running bouts at incremental velocities of 40, 60, 80, and 100% of their maximum velocity o...

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Bibliographic Details
Published in:Journal of strength and conditioning research 2011-04, Vol.25 (4), p.933-939
Main Authors: Brughelli, Matt, Cronin, John, Chaouachi, Anis
Format: Article
Language:English
Subjects:
Adult
Athletes
Athletic Performance
Australia
Biomechanical Phenomena
Exercise Test
Football
Football - physiology
Humans
Male
Professional soccer
Running
Running - physiology
Sports training
Studies
Track & field
Weightlifting
Young Adult
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Summary:Brughelli, M, Cronin, J, and Chaouachi, A. Effects of running velocity on running kinetics and kinematics. J Strength Cond Res 25(4)933-939, 2011-Sixteen semiprofessional Australian football players performed running bouts at incremental velocities of 40, 60, 80, and 100% of their maximum velocity on a Woodway nonmotorized force treadmill. As running velocity increased from 40 to 60%, peak vertical and peak horizontal forces increased by 14.3% (effect size [ES] = 1.0) and 34.4% (ES = 4.2), respectively. The changes in peak vertical and peak horizontal forces from 60 to 80% were 1.0% (ES = 0.05) and 21.0% (ES = 2.9), respectively. Finally, the changes in peak vertical and peak horizontal forces from 80% to maximum were 2.0% (ES = 0.1) and 24.3% (ES = 3.4). In addition, both stride frequency and stride length significantly increased with each incremental velocity (p < 0.05). Conversely, contact times and the vertical displacement of the center of mass significantly decreased with increased running velocity (p < 0.05). A significant positive correlation was found between horizontal force and maximum running velocity (r = 0.47). For the kinematic variables, only stride length was found to have a significant positive correlation with maximum running velocity (r = 0.66). It would seem that increasing maximal sprint velocity may be more dependent on horizontal force production as opposed to vertical force production.
ISSN:1064-8011
1533-4287
DOI:10.1519/JSC.0b013e3181c64308