Arm posture influences spinal cord excitability

Nerve cells that innervate the biceps muscle become more (or less) excitable depending on the posture of the arm (Mogk et al. 2014). This has been shown by stimulating the motor area of people‚Äôs brains (the motor cortex) and measuring the size of responses in the muscles when the arm rests in different shoulder and … Continue reading Arm posture influences spinal cord excitability