Active trigger points develop due to injury, musculoskeletal dysfunction, and overuse issues such as an improper training progression.
When muscles develop trigger points, they often become shortened and can create compression on the structures around them, which can be perceived by the body as pain.
An active trigger point impairs an individual’s ability to lengthen and or contract a muscle.
One of the theories behind TDN is that trigger points are known to have abnormal electrical activity and are surrounded by numerous chemicals known to cause inflammation.
Research has shown that when a needle is successfully inserted into a trigger point and causes a local twitch response, it can return the electrical and chemical environment within the muscle to its normal state and the muscle “let’s go.”
Deactivated trigger points draw white blood cells and plasma cells into the area and create a healing response.
Clinically after dry needling we see improved muscle length, flexibility, and a corresponding decrease in client reported pain.