Does The Static Q Angle Reflect Dynamic Landing Mechanics In Young Female Athletes? (Q-LESS)

May 18, 2026 updated by: Istanbul Gelisim University

Does The Static Q Angle Reflect The Dynamic Landing Mechanics? Relationships Between Q Angle, FPPA, LESS, And Body Composition In Young Female Athletes

This study aimed to investigate whether static Q angle reflects dynamic landing mechanics in young female athletes.

Study Overview

Status

Completed

Conditions

Detailed Description

The purpose of this study was to examine the relationship between static Q angle and dynamic landing mechanics in young female athletes. Twenty-four physically active young female athletes voluntarily participated in the study.

Static Q angle measurements were obtained using digital image analysis techniques. Dynamic landing mechanics were assessed using the Landing Error Scoring System (LESS) and frontal plane projection angle (FPPA) measurements during a standardized drop vertical jump task.Body composition variables including body fat percentage, muscle percentage, and fat-free mass were also evaluated. Correlation, regression, and ROC analyses were performed to determine the association between static anatomical alignment and dynamic knee valgus mechanics. The study aimed to determine whether increased static Q angle values are associated with altered landing biomechanics and increased injury risk indicators.

Study Type

Observational

Enrollment (Actual)

24

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
    • Avcilar
      • Istanbul, Avcilar, Turkey (Türkiye), 34310
        • Istanbul Gelisim University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Twenty-four physically active young female athletes aged 16-18 years participated in this observational cross-sectional study.

Description

Inclusion Criteria:

  • Female athletes aged between 16 and 18 years
  • Physically active individuals participating in regular sports activities
  • Voluntary participation in the study
  • No history of lower extremity surgery

Exclusion Criteria:

  • Current musculoskeletal injury or pain
  • Neurological or balance disorders
  • Previous severe lower extremity injury affecting landing mechanics
  • Incomplete test participation or missing data

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Young Female Athletes
Twenty-four physically active young female athletes participated in this observational cross-sectional study. Static Q angle, dynamic landing mechanics, and body composition parameters were evaluated.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Frontal Plane Projection Angle (FPPA)
Time Frame: Baseline
Assessment of dynamic knee valgus during landing using frontal plane projection angle measurements.
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Istanbul Gelisim University

Investigators

  • Principal Investigator: Burak Taş, PhD, Istanbul Gelisim University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 1, 2026

Primary Completion (Actual)

April 1, 2026

Study Completion (Actual)

May 1, 2026

Study Registration Dates

First Submitted

May 18, 2026

First Submitted That Met QC Criteria

May 18, 2026

First Posted (Actual)

May 22, 2026

Study Record Updates

Last Update Posted (Actual)

May 22, 2026

Last Update Submitted That Met QC Criteria

May 18, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • BTAS-QANGLE-2026

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

Individual participant data sharing has not yet been determined

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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