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The Test-retest Reliability and Concurrent Validity of the Figure of Eight Walk Test and the 360° Turn Test

Beyond Straight Lines: The Test-retest Reliability and Concurrent Validity of the Figure of Eight Walk Test and the 360° Turn Test in Patients With Total Hip Arthroplasty

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07186400
Enrollment
54
Registered
2025-09-22
Start date
2025-09-20
Completion date
2025-12-30
Last updated
2026-03-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Total Hip Arthroplasty

Keywords

total hip arthroplasty, test-retest reliability, validity, balance

Brief summary

To the best of the authors' knowledge, there are no existing studies that have evaluated the reliability and validity of the Figure-of-Eight Walk Test (F8WT) and the 360° Turn Test (360°TT) specifically in patients with total hip arthroplasty (PwTHA). The objective of this investigation was to assess the test-retest reliability and concurrent validity of the F8WT and 360°TT within this patient population.

Detailed description

This study involves a cross-sectional design with 54 unilateral PwTHA cases. Assessments to be conducted during the first session include the F8WT, 360°TT, Timed Up and Go (TUG), and Harris Hip Score (HHS). Subsequently, the F8WT and 360°TT will be retested one hour after the initial test. The reliability of these tests will be determined using the intraclass correlation coefficient (ICC). Concurrent validity will be assessed using the Pearson correlation coefficient. Additionally, the standard error of measurement (SEM95) and minimum detectable change (MDC95) will be calculated for the F8WT and 360°TT.

Interventions

None listed

Sponsors

Artvin Coruh University
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* surgery performed at least 6 months prior; * unilateral total hip arthroplasty; * patients who scored at least 24 points on the Mini-Mental State Examination (MMSE).

Exclusion criteria

* a history of additional surgery on the lower extremities; * bilateral THA or revision surgery; * severe neurological or orthopedic conditions that may influence musculoskeletal mobility or walking; * body mass index (BMI) of 40 kg/m² or higher; * lack of consent to participate in the study.

Design outcomes

Primary

MeasureTime frameDescription
Figure of eight walk test (F8WT)BaselineThe F8WT was developed to evaluate parameters such as gait speed, balance, and directional turning capabilities. The protocol involves participants walking in a figure-eight pattern around two cones positioned 1.52 meters apart. Timing commences when participants initiate the task from the midpoint of the figure-eight trajectory and concludes upon their return to the starting location. Participants' walking directions and chosen speeds are adjusted according to individual preferences and comfort levels.
360° turn test (360°TT)BaselineThe 360°TT serves as a performance evaluation tool aimed at assessing dynamic balance capabilities. The protocol requires participants to execute a complete 360° turn in the shortest possible duration. Turn time and the number of steps employed during the maneuver are recorded using a stopwatch. A turn duration exceeding 2.1 seconds is indicative of a heightened risk of balance deterioration and potential functional impairment.

Secondary

MeasureTime frameDescription
Timed up and go test (TUG)BaselinePhysical performance will be assessed using the TUG test, which is known for its reliability among PwTHA. The procedure involved standing up from a 45 cm chair, walking along a 3-metre path, turning around, and sitting back down on the chair. It will be used to examine concurrent validity against the F8WT and 360° Turn Test.
Harris hip score (HHS)BaselineThe HHS is a comprehensive, multidimensional instrument specifically designed to clinically assess patients with total hip arthroplasty (PwTHA). It consists of four distinct domains: pain, function, deformity, and range of motion (ROM). The total possible score is 100 points, with higher scores indicating better functional status. It will be used to examine concurrent validity against the F8WT and 360° Turn Test.

Countries

Turkey (Türkiye)

Contacts

PRINCIPAL_INVESTIGATORZeynep Yıldız Kızkın, Dr.

Artvin Coruh University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 18, 2026