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GYKO-Based L-Test Reliability in Parkinson's Disease
Sponsor: Hasan Kalyoncu University
Summary
This study aims to investigate the interrater and test-retest reliability of GYKO-based postural sway measurements collected during the L-Test and Timed Up and Go (TUG) test in individuals with Parkinson's disease (Hoehn \& Yahr stages 1-3). Two independent raters will perform GYKO-based assessments of the L-Test and TUG with a 20-minute interval. Participants will return one week later to repeat the same procedures for test-retest reliability. Concurrent validity will be examined using the Berg Balance Scale.
Official title: Test-Retest and Interrater Reliability and Validity of Postural Sway Parameters Measured With GYKO During the L Test in Individuals With Parkinson's Disease
Key Details
Gender
All
Age Range
50 Years - 85 Years
Study Type
OBSERVATIONAL
Enrollment
25
Start Date
2025-12-01
Completion Date
2026-05-01
Last Updated
2026-01-21
Healthy Volunteers
No
Conditions
Interventions
GYKO-Based Postural Sway Assessment
This procedure involves obtaining postural sway parameters using the GYKO inertial measurement device during the Time Up and Go (TUG) test and L-Test. No therapeutic intervention is applied. Time Up and Go Test: Timed Up and Go (TUG) is a standardized functional mobility test used to assess dynamic balance and gait performance. Participants are instructed to stand up from a standard-height chair, walk 3 meters, turn around, walk back to the chair, and sit down. The total time to complete the task (in seconds) is recorded. Higher times indicate reduced mobility. L Test: Time (in seconds) to complete the L-Test of Functional Mobility. The test requires participants to stand up from a chair, walk 3 m, execute a 90° turn, walk another 7 m, perform a 180° turn, and return along the same path (total walking distance ≈ 20 m). The task ends when the participant sits back down. The total time to complete the task (in seconds) is recorded. Higher times indicate reduced mobility.
Locations (1)
Hasan Kalyoncu University
Gaziantep, Şahinbey, Turkey (Türkiye)