An EMG involves putting a small needle through the skin into the muscle and recording the pattern of electricity in the muscle when it is contracting. A small piece of muscle is removed and cut into very thin slices. It is stained with a series of special dyes to show the different types of muscle fibers, and studied by a pathologist. The object of gene therapy for Duchenne muscular dystrophy is to put a healthy dystrophin gene in the boys muscle cells to replace the bad cells. This is not finalized yet.
More research is needed.