The BFST is very different from a TENS unit in many ways. Primarily, a TENS unit works by producing electrical impulses that work to deaden your nerve endings to pain - it does not heal, it temporarily relieves pain. By repeatedly damaging the nerves, it can result in loss of sensation and muscle damage. You should only use a TENS unit at the suggestion of a physician to treat nerve issues.
The BFST works by producing electromagnetic energy, which works underneath the skin in the soft tissue, in order to increase the circulation. This increase in blood flow transports oxygenated blood and nutrients to the source of your pain, and it helps to actually heal the muscles, tendons, and ligaments. The BFST works not only to relieve your pain, but to heal your injury and strengthen the entire area you treat, which helps to prevent reinjury in the future.
