Myofascial trigger point or “knots” is a common term used to describe tightness and hard bumps in muscles that are painful when pressure is applied.  Generally, people complain of knots in their neck, shoulders and low back.  But what are knots and how do they form?  In order to explain this, we need to understand how muscles work.  

When you bend your elbow, the muscle fibers in your biceps shorten (contract) but when you straighten the elbow, those fibers lengthen (relax).  This ability to contract and relax is what allows us to move.  But what you had a muscle that was in a constant state of contraction and was unable to relax?  Overtime, it would probably feel tight, uncomfortable, and painful. The muscle becomes dysfunctional because it’s unable to relax, creating knots and trigger points.