Muscle stimulation for shoulder pain

Muscle stimulation is a common physio therapy treatment for shoulder pain and injury.
There are various physio therapy treatments for shoulder pain including ice, heat, massage, ultrasound, and muscle stimulation. Muscle stimulation provides micro current into the muscles and causes small micro contractions that are supposed to reduce muscle spasm. The majority of the pain relief is actually due to endorphin release in the brain triggered by the micro current but the effect is temporary.  The temporary pain reduction makes the muscle stimulation an effective physiotherapy tool because it allows you to undergo more intense rehab therapy like weight training and stretching with therastrap.