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Influence of previous groin pain on hip and pelvic instep kick kinematics
Journal article   Peer reviewed

Influence of previous groin pain on hip and pelvic instep kick kinematics

Anna Severin, Daniel Mellifont and Mark Sayers
Science and Medicine in Football, Vol.1(1), pp.80-85
2017
url
https://doi.org/10.1080/02640414.2016.1221527View
Published Version

Abstract

groin injury football soccer lower limb biomechanics
This study analyzed differences in pelvic and hip joint kinematics during maximal instep kicks from two different approach angles in football players with and without previous groin pain (Group C and PGP Group, respectively). Kinematic data were recorded at 500 Hz, from 22 semiprofessional, male football players (age 23 [19-26] years) performing 12 instep kicks from 45° and 60° approach angles. Two-way analysis of variance identified differences between groups, and Cohen's d determined the magnitude of effect sizes. Foot velocity at impact did not differ significantly between the groups for kicks from the 45° approach angle (P = 0.458, d = 0.13), although both groups slowed significantly at 60° (Group C: P < 0.001, d = 0.87; PGP Group: P < 0.001, d = 0.65). For kicks from the 45° approach angle, numerous significant differences existed between groups in pelvic and hip joint orientations, range of motion and maximal velocities. When kicking from the more acute 60° approach angle, Group C modified multiple aspects of pelvis and hip kinematics, while the PGP Group failed to adapt their technique. During maximal instep, kicking football players with previous groin pain employed different hip and pelvis kinematics to uninjured controls. The kicking kinematics adopted by the PGP group were consistent with aberrant kinetic chain utilization.

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