Intermittent treadmill running induces kinematic compensations to maintain soccer kick foot speed despite no change in knee extensor strength

Greig, Matt (2018) Intermittent treadmill running induces kinematic compensations to maintain soccer kick foot speed despite no change in knee extensor strength. Journal of Applied Biomechanics, 34 (4). pp. 278-283. ISSN 1065-8483 DOI https://doi.org/10.1123/jab.2017-0017

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Abstract

Kicking is a fundamental skill and a primary non-contact mechanism of injury in soccer, with injury incidence increasing during the latter stages of match-play. Ten male professional soccer players completed a 90min treadmill protocol based on the velocity profile of soccer match-play. Pre-exercise, and at 15 min intervals, players completed a maximal velocity kick subjected to kinematic analysis at 200 Hz. Pre-exercise, and at the end of each half, players also completed isokinetic concentric knee extensor repetitions at 180, 300 and 60 °·s-1. Kicking foot speed was maintained at ~19 m·s-1, with no main effect for exercise duration. In relation to proximal-distal sequencing during the kicking action, there was a significant increase in the duration (but not magnitude) of thigh rotation, with a compensatory decrease in the duration (but not magnitude) of shank rotation during the latter stages of the exercise protocol. In relation to long-axis rotation, pelvic orientation at ball contact was maintained at ~6˚, representing a total pelvic rotation in the order of ~15 ˚ during the kicking action. Peak knee extensor torque at all speeds was also maintained throughout the protocol, such that kinematic modifications are not attributable to a decline in knee extensor strength.

Item Type: Article
Uncontrolled Keywords: soccer, kicking technique, injury, isokinetic strength
Subjects: G Geography. Anthropology. Recreation > GV Recreation Leisure
Divisions: Sports Science
Date Deposited: 05 Mar 2018 14:33
URI: http://repository.edgehill.ac.uk/id/eprint/10143

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