The Primo Stimulation Multidyne (Multi-Frequency Therapy) provides the full range of low and medium frequency outputs from one advanced unit. Stimulation therapy is used for rehabilitation purposes, preventing muscle atrophy caused by musculoskeletal injuries such as damage to bones, joints, muscles, ligaments/tendons. It is also used to enhance sports performance by strengthening muscles using NMES (Neuromuscular Electrical Stimulation).