Healthy muscle fiber is neither contracted nor stretched when at rest. When contracted the muscle fiber is closer together and when stretched, it's further apart. In a muscle that is causing trigger point pain, the fiber develops a knot and is in a constant state of contraction.
The fiber around these knots is stretched by the excess tension and the muscle fibers become tighter. With the continuous contraction, blood flow is slowed to a stop in the trigger point area and essential oxygen and nutrients are prevented from reaching the muscle tissue. Toxins and waste build up in the muscle and you will experience pain, tension, irritation, and spasm. To learn how to effectively treat trigger point pain of the shoulder, please click here: