Carpal Tunnel Syndrome
Conditions
Brief summary
This study will use electromyography and nerve conduction studies to evaluate median nerve function during the Phalen's wrist flexion test in different wrist positions.
Detailed description
The Phalen's test is commonly used to assess carpal tunnel syndrome. However, it is unclear which wrist position during this test best isolates median nerve function. This study will measure thenar muscle activation and median nerve conduction in 30 healthy participants performing the Phalen's test. Different wrist flexion angles will be evaluated to determine which position optimally targets the median nerve. Results may enhance utilization of the Phalen's test in clinical practice and research.
Interventions
DIAGNOSTIC_TESTPhalen's wrist flexion test
The Phalen's test will be performed at different wrist flexion angles from 0 to 90 degrees.
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 hand/wrist disorders
Exclusion criteria
* Contraindications to EMG or NCV * Neurological or muscular disorders
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Thenar Muscle Activation | Baseline | Mean EMG activity of the thenar muscles during the Phalen's test at different wrist angles. Measured in microvolts (μV). |
| Median Nerve Conduction Velocity during Phalen's Test | Baseline | Median nerve conduction velocity (measured in meters per second, m/s) assessed using surface electrodes at the wrist and elbow during the Phalen's test wrist flexion maneuver. Measured bilaterally at each wrist flexion angle during a single study visit. |
| Median Nerve Distal Latency during Phalen's Test | Baseline | Median nerve distal latency (measured in milliseconds, ms) assessed using surface electrodes over the abductor pollicis brevis and stimulating the median nerve at the wrist during the Phalen's test. Measured bilaterally at each wrist flexion angle during a single study visit. |
Countries
Egypt
Contacts
Primary ContactMohamed M ElMeligie, Ph.d
Outcome results
None listed