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The Effects of Stroboscopic Visual Conditions on Gait and Lower Limb Muscle Activity in Individuals With Chronic Ankle Instability

NCT07134829 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 25

Last updated 2025-08-21

No results posted yet for this study

Summary

This interventional study will investigate the effects of stroboscopic visual conditions on gait patterns and lower limb muscle activation in adults with chronic ankle instability (CAI). CAI often results in impaired sensorimotor control, leading to altered gait strategies such as slower walking speed, shorter step length, and increased visual reliance. Stroboscopic glasses intermittently restrict visual input, potentially reducing visual dependence and enhancing proprioceptive feedback.

Participants will complete walking trials under three randomized visual conditions: high-frequency stroboscopic, low-frequency stroboscopic, and no-glasses control. Gait parameters will be measured using the GAITRite system, and surface electromyography (sEMG) will record activation of the tibialis anterior, peroneus longus, and gastrocnemius muscles. Findings may provide insight into sensorimotor adaptation mechanisms and inform rehabilitation strategies to improve functional stability in individuals with CAI.

Conditions

  • Chronic Ankle Instability

Interventions

BEHAVIORAL

Stroboscopic Visual Conditions

Participants will perform walking trials under three visual conditions: high-frequency stroboscopic glasses, low-frequency stroboscopic glasses, and no-glasses control. Each participant will complete three 5-meter walking trials per condition, with the order of conditions randomized. Gait parameters will be recorded using the GAITRite walkway system, and muscle activity will be measured using surface electromyography.

Sponsors & Collaborators

  • Sahmyook University

    lead OTHER

Principal Investigators

  • Seungwon Lee, PhD · Sahmyook University

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-08-31
Primary Completion
2025-09-28
Completion
2025-10-12

Countries

  • South Korea

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07134829 on ClinicalTrials.gov