Wrist Motion Triggers Higher Carpal Tunnel Pressure

Scientists discovered that moving the wrist changes the pressure inside the carpal tunnel. Their research showed that flexing or extending the arm, plus shifting the radius bone sideways, all raise nerve compression. This means ordinary daily activities can put significant strain on the median nerve.

To test this idea, the team used five actual human hands that had been preserved after death. They mounted a precise measuring device on the back of each hand and placed a fine-pressure probe deep inside the carpal tunnel. As participants naturally bent and rotated their wrists, the system recorded both the hand's position and the internal pressure continuously.