An observational study in Genu Varum, sponsored by Akdeniz University. Completed at 1 site in Turkey (Türkiye). Open to male participants aged 13 Years to 19 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-03.
Sponsored by Akdeniz University · Observational
The goal of this observational study is to compare change-of-direction (COD) and reactive agility (RA) performance between football players with and without genu varum and to examine whether lower-limb alignment is associated with these performance measures.
The main questions it aims to answer are:
Football players with and without genu varum will undergo assessments of lower-limb alignment, COD performance, and RA performance. The study will compare performance between the two groups and examine the relationship between lower-limb alignment and performance measures.
The study population consisted of male youth football players recruited from the academy of a professional football club based in Antalya, Türkiye. The football club competes in the Turkish Süper Lig, the highest tier of professional football in Türkiye.
Exclusion Criteria:
Football players with genu varum who will be assessed for lower-limb alignment, change-of-direction performance, and reactive agility performance.
Football players without genu varum who will be assessed for lower-limb alignment, change-of-direction performance, and reactive agility performance.
Change-of-direction performance
Change-of-direction performance will be assessed using the SpeedCourt system (Globalspeed GmbH, Hemsbach, Germany). The test consists of a 14.5-m running course with four changes of direction. Performance will be evaluated based on total completion time, with lower times indicating better change-of-direction performance.
Time frame: at basline
Reactive agility performance
Reactive agility performance will be assessed using the SpeedCourt system (Globalspeed GmbH, Hemsbach, Germany). Participants will respond as quickly and accurately as possible to randomly presented visual stimuli and perform the required directional movements. Performance will be evaluated based on total completion time, with lower times indicating better reactive agility performance.
Time frame: at basline
Intercondylar distance and intermalleolar distance
Lower-limb alignment will be assessed by measuring intercondylar distance (ICD) and intermalleolar distance (IMD) in centimeters. ICD will be measured as the distance between the medial femoral condyles, and IMD as the distance between the medial malleoli, using a standardized measurement procedure.
Time frame: at basline
Plan to share: Undecided — Undecided
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Akdeniz University