Male collegiate soccer athletes with severe ankle laxity display increased knee abduction during side-cutting tasks compared to those with only perceived ankle instability. Issue 6 (2nd November 2021)

• Record Type: Journal Article
• Authors: Kunugi, Shun; Koumura, Takashi; Myotsuzono, Ryota; Masunari, Akihiko; Yoshida, Naruto; Miyakawa, Shumpei; Mukai, Naoki
• Is Part Of: Research in sports medicine. Volume 29:Issue 6(2021)
• Page Start: 547
• Page End: 556
• Publication Date: 2021-11-02
• Subjects: Ankle laxity -- ankle sprains -- joint instability -- kinematics -- lateral ligament; Sports medicine -- Periodicals; Athletic Injuries -- Periodicals; Exercise -- Periodicals; Sports Medicine -- Periodicals; Médecine du sport -- Périodiques; 617.102705
• DOI: 10.1080/15438627.2021.1917407
• Languages: English
• ISSNs: 1543-8627

Abstract

ABSTRACT: This study aimed to examine lower limb kinematics during a side-cutting task in male collegiate soccer athletes with severe ankle laxity. Forty-seven participants with a history of ankle sprains and perceived ankle instability were categorized into non-laxity (n = 17), laxity (n = 19), and severe laxity (n = 11) groups using stress radiography tests. Three-dimensional kinematic data during the stance phase of a 45° side-cutting task were analysed. The frontal plane kinematics of the knee significantly differed between the three groups (p < 0.05). The severe laxity group exhibited a greater abduction angle than the non-laxity group (p < 0.05). The horizontal and sagittal plane kinematics of the rearfoot differed between the three groups during the end of the stance phase (p < 0.05). Our data suggest that collegiate soccer athletes with both perceived ankle instability and severe ankle laxity exhibit greater knee abduction movement during a 45° side-cutting task compared to those with only perceived ankle instability.