Dynamic balance status and ankle mobility in adolescent basketball players with a history of multiple lateral ankle sprains.

Authors

Motoi Miyakawa, Issei Ogasawara, Shoji Konda, Tomoyuki Matsuo, Susumu Iwasaki, Yuki Uno, Natsuki Yoshida, Izumi Nishizawa, Xuemei Zhang, Jianting Liu, Yuhao Sun, Tatsuya Hayashi, Ken Nakata

Published in

Clinical biomechanics (Bristol, Avon). Volume 139. Pages 106927. Jul 12, 2026. Epub Jul 12, 2026.

Abstract

Lateral ankle sprains (LAS) are prevalent among adolescent athletes and can lead to persistent sensorimotor impairment. Although altered postural control is a known consequence, the impact of recurrent LAS on time-resolved landing dynamics, while accounting for maturational and anthropometric confounding factors, remains unclear in adolescent athletes.
We categorized 238 ankles from 156 adolescent basketball players into three LAS history groups: control, one-time, and multiple-time. Non-weight-bearing (non-WB) and weight-bearing (WB) ankle range of motion (RoM) were measured. The center of pressure (CoP) trajectory length during a single-legged landing (SLL) task was calculated across six time windows (20 ms to 5 s post-landing). Linear mixed-effects models accounted for within-participant dependence and were adjusted for covariates including age, height, body weight, and basketball experience.
LAS history was not independently associated with CoP trajectory length in any time window. Non-WB dorsiflexion RoM was significantly and positively associated with the CoP trajectory length during the 200 ms to 1 s, 1 to 2 s, and 4 to 5 s intervals. The multiple-time group demonstrated significantly greater plantarflexion RoM than the control group.
Time-resolved CoP trajectory length during SLL was more closely related to dorsiflexion RoM than to a history of LAS alone. The observed relationship between the non-WB dorsiflexion RoM and CoP trajectory length suggests that limited dorsiflexion mobility may constrain the magnitude of CoP modulation during post-landing stabilization. Assessing dorsiflexion mobility may help characterize inter-individual differences in dynamic balance behavior among adolescent basketball players.
Basic Science; Biomechanics.

PMID:
42447537
Bibliographic data and abstract were imported from PubMed on 15 Jul 2026.

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