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Updated: Jan 21, 2026

Functional and Physiological Methods of Evaluating Median Nerve Regeneration in the Rat
Published on: April 18, 2020
An overview of hand postures and aging on morphological changes of the median nerve
Ping Yeap Loh1, Wen Liang Yeoh2, Satoshi Muraki3
1Department of Human Science, Faculty of Design, Kyushu University, Fukuoka, Japan. py-loh@design.kyushu-u.ac.jp.
Background:
High-resolution ultrasound is being widely used in carpal tunnel examination to understand morphological and biomechanical characteristics of the median nerve and surrounding anatomy structures.
Main Body:
Healthy young and elderly men were recruited. The median nerve at proximal wrist region was examined by ultrasound imaging technique. A total of seven wrist angle was examined. Generally, the median nerve cross-sectional area of the elderly group is significantly larger than the young group.
Short Conclusion:
Wrist posture in greater flexion or extension caused a larger decrease in the median nerve cross-sectional area across both groups.
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