Weakness, Muscle
Conditions
Brief summary
This study will use electromyography and dynamometry to evaluate gluteal muscle activation during the Trendelenburg hip abduction test in different hip positions.
Detailed description
The Trendelenburg test is commonly used to assess hip abductor weakness. However, it is unclear which hip position during this test best isolates gluteal muscle function. This study will measure gluteus medius and minimus activation and hip abduction force in 30 healthy participants performing the Trendelenburg test. Different hip flexion, extension, adduction and abduction angles will be evaluated to determine which position optimally targets the gluteal muscles. Results may enhance utilization of the Trendelenburg test in clinical practice.
Interventions
DIAGNOSTIC_TESTTrendelenburg hip abduction test
The Trendelenburg test performed at different hip flexion, extension, adduction and abduction angles.
Sponsors
Ahram Canadian University
Study design
Observational model
OTHER
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* Healthy adults aged 18-45 years * No history of hip disorders
Exclusion criteria
* Contraindications to EMG * Neurological or muscular disorders
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Gluteus Medius Activation | Baseline | Mean EMG activity of the gluteus medius during the Trendelenburg test at different hip positions. Measured bilaterally in microvolts (μV). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Gluteus Minimus Activation during Trendelenburg Test | Baseline | Mean muscle activation amplitude (measured in microvolts, μV) of the gluteus minimus during the Trendelenburg hip abduction test across a range of hip flexion, extension, adduction and abduction angles from 0 to 45 degrees. Measured bilaterally using surface electromyography electrodes placed on the muscle belly of the gluteus minimus. |
| Hip Abduction Strength during Trendelenburg Test | Baseline | Maximum voluntary isometric hip abduction strength (measured in Newtons, N) during the Trendelenburg hip abduction test maneuver. Measured bilaterally at each combination of hip flexion, extension, adduction and abduction angles using a stabilized handheld dynamometer placed just proximal to the lateral femoral condyle. |
Countries
Egypt
Contacts
Primary ContactMohamed M ElMeligie, Ph.d
Outcome results
None listed