Related Experiment Video
Updated: Aug 11, 2025
Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
Published on: September 18, 2020
Dynamic postural control in individuals with and without chronic ankle instability-do the modified star-excursion
Uri Gottlieb1, Jay R Hoffman1, Shmuel Springer1
1Neuromuscular and Human Performance Laboratory, Department of Physiotherapy, Ariel University, Israel.
Objective:
To examine the relationship between two dynamic postural tasks in subjects with and without chronic ankle instability (CAI).
Design:
Cross-sectional study.
Setting:
Biomechanics lab.
Participants:
Thirty subjects with CAI and 30 healthy controls.
Main Outcome Measure:
Performance of two dynamic postural control tests: the modified Star-Excursion Balance Test (mSEBT) and an assessment of a single limb jump-landing on a force plate that yielded two outcomes: time to stabilization (TTS) and the absolute average force in the mediolateral plane during the first 0.4 s after landing (AAFML).
Results:
In the CAI group, a significant correlation was found between the mSEBT score and the AAFML (ρ = -0.54, p < 0.01), but not between the mSEBT or TTS or between the AAFML and the TTS. However, in the control group, a significant correlation was found between AAFML and the TTS (ρ = 0.43, p < 0.05), but not between the mSEBT and TTS or between the mSEBT and AAFML.
Conclusion:
These results suggest that there is no association between the different dynamic balance tasks. The different pattern of association in individuals with CAI may indicate altered central neural control. Clinicians and researchers should therefore not use a single task to assess dynamic postural control.
