MedTrace Logo

Q Angle in Static and Dynamic Postures

NCT05894551 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 130

Last updated 2025-11-28

No results posted yet for this study

Summary

The Q angle, also known as the quadriceps angle, is defined as the angle formed between the quadriceps muscles and the patella tendon. It was first described by Brattstrom in 1964 (1). The Q angle is the angle between the line extending from the anterior superior of the spina iliaca to the midpoint of the patella and the line extending from the midpoint of the patella to the tuberositas tibia (2). Normally, this angle is between 8-14 degrees in men and 11-20 degrees in women. Any alignment change that increases the Q angle is thought to increase the lateral force on the patella.

The Q angle is generally evaluated in static postures in the literature. The Q angle value varies according to the patient's gender, the contractility of the quadriceps, and the patient's posture (standing or supine) (3).

Q angle was evaluated in a static posture with a standard goniometer or computerized biophotogrammetry (4) Q angle changes with the forces applied by dynamic structures. It is insufficient to evaluate only in a static posture. Therefore, the aim of this study is to examine the effect of dynamic structures on the Q angle using 2D gait analysis (video) and to detect the early signs of deviation of changes in the q angle.

Conditions

  • Quadriceps Muscle
  • Orthopedic Disorder

Interventions

OTHER

Evaluation of q angles different positions

Q angle evaluation in two different static postures (upright and supine position) and dynamic posture during the midstance phase of the gait

OTHER

Physical examination

With goniometric evaluations, the femoral anteversion angle will be measured. Pelvis width and thigh length will be measured with a tape measure. Quadriceps muscle strength, hamstring muscle strength, Hip abduction, adduction, internal and external rotation and extension muscle strength will be measured with hand-held dynamometer. Joint mobility will be assessed with the Beighton score and foot posture will be evaluated with the foot posture index-6 (FPI-6).

OTHER

Functional mobility assessment

10-meter walking test will be conducted to understand functional mobility.

Sponsors & Collaborators

  • Istanbul University - Cerrahpasa

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
25 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-05-01
Primary Completion
2023-06-01
Completion
2023-07-15

Countries

  • Turkey (Türkiye)

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05894551 on ClinicalTrials.gov