The influence of ankle dorsiflexion and self-reported patient outcomes on dynamic postural control in participants with chronic ankle instability

Masafumi Terada, Matthew S. Harkey, Ashley M. Wells, Brian G. Pietrosimone, Phillip A. Gribble

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


We investigated the influence of ankle dorsiflexion range of motion (DF-ROM) and self-reported patient outcomes on dynamic postural control assessed with the Star Excursion Balance Test (SEBT) in individuals with chronic ankle instability (CAI). Twenty-nine participants with self-reported CAI volunteered. The primary outcome measurements were categorized into clinician-and patient-generated. Clinician-generated outcome measurements included anterior (SEBT-A), posteriormedial (SEBT-PM) and posteriorlateral (SEBT-PL) reach distances (cm) normalized by leg length (cm) of the SEBT, maximum weight-bearing dorsiflexion (WB-DF) (cm), and open-chain DF-ROM (°). Self-reported patient-generated outcome measures included the foot and ankle ability measure and the level of perceived pain, stiffness, stability, and function of their involved ankle on a 10-cm visual analog scale (VAS). Pearson product moment correlations were used to examine the relationship of the SEBT performances with DF-ROM and self-reported patient outcome measures. A multiple linear regression was performed to determine the influence of patient- and clinician-generated measures on the SEBT. SEBT-A performance was significantly and fairly correlated with WB-DF (r=0.410, p=0.014), perceived ankle stiffness (r=0.477, p=0.014), and open-chain DF-ROM (r=0.404, p=0.015). The strongest predictor of the variance in SEBT-A was the combination of the variance in WB-DF and VAS-stiffness (R2=0.348, p=0.004). There were no significant correlations with the SEBT-PM and SEBT-PL. WB-DF and VAS-stiffness may represent targets for intervention that need to be addressed to produce the best outcome in participants with CAI when altered dynamic postural control is detected on the SEBT-A.

Original languageEnglish
Pages (from-to)193-197
Number of pages5
JournalGait and Posture
Issue number1
StatePublished - May 2014

Bibliographical note

Funding Information:
This study that was part of a randomized controlled trial investigating the effect of joint mobilization on neural excitability, DF-ROM, and dynamic postural control in participants with CAI was supported by the National Athletic Trainers’ Association Research and Education Foundation (Dallas, TX) through its Osternig Master's Grant Program.


  • Patient outcome assessment
  • Postural balance
  • Range of motion

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation


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