(A) P3’s median and ulnar RPNI MAV signals during thumb carpometacarpal (CMC)/metacarpophalangeal (MCP) joint flexions, thumb interphalangeal (IP) joint flexion, index finger MCP/proximal interphalangeal (PIP), small finger MCP/PIP joint flexions, hand abduction, and hand adduction movements. (B) P4’s median RPNI, ulnar RPNI 1, and ulnar RPNI 2 MAV signals during thumb CMC/MCP joint flexions, thumb IP joint flexion, index finger MCP/PIP joint flexions, small finger MCP/PIP joint flexions, finger abduction, and finger adduction movements.