Does The Static Q Angle Reflect Dynamic Landing Mechanics In Young Female Athletes?

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

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT07605000

Acronym

Q-LESS

Enrollment

Registered

2026-05-22

Start date

2026-01-01

Completion date

2026-05-01

Last updated

2026-05-22

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

Conditions

Dynamic Landing Mechanics

Keywords

Q angle, Dynamic knee valgus, LESS, FPPA, Female athletes

Brief summary

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

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.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

FEMALE

Age

16 Years to 18 Years

Healthy volunteers

Yes

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

Design outcomes

Primary

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

Countries

Turkey (Türkiye)

Contacts

PRINCIPAL_INVESTIGATORBurak Taş, PhD

Istanbul Gelisim University

Outcome results