NCT07328750

Dynamic Q Angle and Core Endurance in Adolescent Athletes With Patellofemoral Pain Syndrome

Dynamic Q Angle And Core Endurance In Adolescent Athletes With Patellofemoral Pain Syndrome: A Sex-Based Comparative Retrospective Study

• Status: Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 85 (estimated)
• Sponsor: Eastern Mediterranean University · Academic / Other
• Sex: Male
• Age: 15 Years – 17 Years
• Healthy volunteers: Accepted

Summary

This cross-sectional observational study aims to compare trunk mobility, lower extremity flexibility, and functional balance performance across different sports branches in adolescent elite male athletes. Trunk mobility will be assessed using a digital inclinometer in flexion, extension, and rotational movements; hamstring flexibility will be evaluated using the Straight Leg Raise test; and functional balance will be measured using the normalized Y-Balance Test. The study seeks to identify sport-specific biomechanical characteristics and potential indicators related to injury risk and performance adaptations in adolescent competitive athletes.

Detailed description

Adolescent elite athletes are exposed to sport-specific mechanical loading patterns that may lead to adaptations in trunk mobility, flexibility, and dynamic balance control. These biomechanical characteristics may differ between sports branches due to variations in postural demands, training volume, movement strategies, and neuromuscular control mechanisms. Understanding inter-sport differences may contribute to performance optimization and preventive rehabilitation approaches in youth athletics. This study is designed as a cross-sectional, observational, and multi-group comparative investigation including elite adolescent male athletes from different sports branches. All participants will undergo standardized clinical and biomechanical assessments. Trunk mobility will be measured using a digital inclinometer in flexion, extension, and rotation at the lumbosacral and thoracolumbar regions. Hamstring flexibility will be assessed using the passive Straight Leg Raise test, and functional balance will be evaluated using the Y-Balance Test composite score normalized to limb length. The primary objective of the study is to compare functional balance performance across sports branches. Secondary objectives include comparing trunk mobility and hamstring flexibility measures and examining potential associations among these biomechanical parameters. The findings of this study are expected to provide evidence-based insight into sport-specific musculoskeletal characteristics and may support the development of targeted screening and injury-prevention strategies for adolescent elite athletes.

Conditions

• Postural Balance
• Athletic Performance

Interventions

Type	Name	Description
OTHER	Observational Clinical and Biomechanical Assessment	No intervention is administered in this study. Participants only undergo standardized observational assessments, including trunk mobility measurements using a digital inclinometer, hamstring flexibility testing with the Straight Leg Raise test, and functional balance evaluation using the Y-Balance Test. No therapeutic or experimental procedures are applied.

Timeline

• Start date: 2025-12-01
• Primary completion: 2026-02-15
• Completion: 2026-02-20
• First posted: 2026-01-09
• Last updated: 2026-01-09

Locations

1 site across 1 country: Cyprus