Median Nerve Function During Phalen's Test
Study Details
Study Description
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.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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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.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Healthy Adults 30 healthy adult participants aged 18-45 years performing the Phalen's wrist flexion test |
Diagnostic Test: Phalen's wrist flexion test
The Phalen's test will be performed at different wrist flexion angles from 0 to 90 degrees.
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Outcome Measures
Primary Outcome Measures
- 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.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Healthy adults aged 18-45 years
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No history of hand/wrist disorders
Exclusion Criteria:
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Contraindications to EMG or NCV
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Neurological or muscular disorders
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Outpatient clinic of faculty of physical therapy, Ahram Canadian University | Al Ḩayy Ath Thāmin | Giza | Egypt | 3221405 |
Sponsors and Collaborators
- Ahram Canadian University
Investigators
- Study Chair: Amal Fawzy, Ph.d, Faculty of Physical Therapy, Ahram Canadian University
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- OT-PT-001