This is challenging, because movement of the residual limb with respect to the socket creates movement artifact in EMG signals and can cause chafing or pressure sores at electrode contact points ...

"Portable electronic device users have shown increasing interest in biometric tracking," explains the patent. "Biometric sensors often need to be in close or even direct contact with the skin to ...

An Electromyographic device, or EMG, records and transmits muscle movement to computers via a wireless or wired connection. Microsoft's "Wearable EMG Controller", as they call it, ...