Shun Kunugi1, Akihiko Masunari2, Naruto Yoshida3, Shumpei Miyakawa4. 1. Faculty of Health and Sport Sciences, University of Tsukuba, 305-8574, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan. Electronic address: shun.kunugi@hotmail.com. 2. Center for Medical Sciences, Ibaraki Prefectural University of Health Sciences, 300-0331, 4669-2 Ami, Ami-machi, Inashiki, Ibaraki, Japan. Electronic address: raulgonzalezhame@yahoo.co.jp. 3. Faculty of Health Care, Teikyo Heisei University, 170-8445, 2-51-4, Higashi-Ikebukuro, Toshima, Tokyo, Japan. Electronic address: naruto-y@kch.biglobe.ne.jp. 4. Faculty of Health and Sport Sciences, University of Tsukuba, 305-8574, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan. Electronic address: miyakawa.shumpei.fn@u.tsukuba.ac.jp.
Abstract
OBJECTIVE: The purpose of this study was to investigate the association between Cumberland Ankle Instability Tool (CAIT) scores and postural stability during a diagonal landing, and to investigate whether postural stability is altered in collegiate soccer players with and without functional ankle instability (FAI). DESIGN: Cross-sectional study. SETTING: Laboratory. PARTICIPANTS: Ninety-one soccer players were classified into a FAI group (history of at least two ankle sprains and a CAIT-Japanese version score ≤25, n = 28), a copers group (history of one ankle sprain and a CAIT-Japanese version score ≥26, n = 32), or a control group (no history of ankle sprain, n = 31). MAIN OUTCOME MEASURES: Time to anteroposterior stabilisation (TTSAP) and mediolateral stabilisation (TTSML) were measured during the diagonal single-leg landing. RESULTS: The CAIT scores were correlated with TTSAP (P < 0.05, rs = -0.214) and TTSML (P < 0.01, rs = -0.566). TTSAP was longer in the FAI group than in the control group, and TTSML was longer in the FAI group than in the other groups. CONCLUSIONS: Our findings indicate the presence of an association between the CAIT-J score and TTSML, as well as postural stability deficits in collegiate soccer players with FAI during diagonal landings.
OBJECTIVE: The purpose of this study was to investigate the association between Cumberland Ankle Instability Tool (CAIT) scores and postural stability during a diagonal landing, and to investigate whether postural stability is altered in collegiate soccer players with and without functional ankle instability (FAI). DESIGN: Cross-sectional study. SETTING: Laboratory. PARTICIPANTS: Ninety-one soccer players were classified into a FAI group (history of at least two ankle sprains and a CAIT-Japanese version score ≤25, n = 28), a copers group (history of one ankle sprain and a CAIT-Japanese version score ≥26, n = 32), or a control group (no history of ankle sprain, n = 31). MAIN OUTCOME MEASURES: Time to anteroposterior stabilisation (TTSAP) and mediolateral stabilisation (TTSML) were measured during the diagonal single-leg landing. RESULTS: The CAIT scores were correlated with TTSAP (P < 0.05, rs = -0.214) and TTSML (P < 0.01, rs = -0.566). TTSAP was longer in the FAI group than in the control group, and TTSML was longer in the FAI group than in the other groups. CONCLUSIONS: Our findings indicate the presence of an association between the CAIT-J score and TTSML, as well as postural stability deficits in collegiate soccer players with FAI during diagonal landings.
Authors: Florian Dittrich; David Alexander Back; Anna Katharina Harren; Marcus Jäger; Stefan Landgraeber; Felix Reinecke; Sascha Beck Journal: JMIR Mhealth Uhealth Date: 2020-02-26 Impact factor: 4.773