Median Nerve Function During Phalen's Test

Electrophysiological Assessment of the Median Nerve During the Phalen's Test for Carpal Tunnel Syndrome

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.

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.

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