Electrophysiological Assessment of the Median Nerve During the Phalen's Test for Carpal Tunnel Syndrome
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 30
- 试验地点
- 1
- 主要终点
- Median Nerve Conduction Velocity during Phalen's Test
研究概览
简要总结
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.
详细描述
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.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 45 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy adults aged 18-45 years
- •No history of hand/wrist disorders
排除标准
- •Contraindications to EMG or NCV
- •Neurological or muscular disorders
结局指标
主要结局
Median Nerve Conduction Velocity during Phalen's Test
时间窗: 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
时间窗: 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.
Thenar Muscle Activation
时间窗: Baseline
Mean EMG activity of the thenar muscles during the Phalen's test at different wrist angles. Measured in microvolts (μV).
次要结局
未报告次要终点
研究者
Mohamed Magdy ElMeligie
Lecturer of Physical Therapy and Director of Electromyography Lab
Ahram Canadian University