Dennis is a 52 year old who lost his left arm below the elbow in 2007 after his arm was crushed in a winch.
He was initially fit with a munster type 4 channel myoelectric prosthesis and was able to use with good effect for several years and incorporating the prosthesis for many of his activities.
He suffered a heart attack in 2014 and lost over 30 pounds. His weight continued to fluctuate and he could not maintain a proper fit in his prosthesis. As the socket tended to shift in position his electrode control became frustrating and inconsistent.