Hello, thebluedog:

Simply that MOVEMENT is good and INACTIVITY is bad. When we move around, the probability of cellular death that causes inflammation decreases because movement distributes lymph and therefore dilutes the local concentrations of IgA-Kp; the agent provocateur in AS. Imagine food coloring added to a glass of water that is very visible where it is introduced into the water, but once stirred in is not so obvious. The IgA is produced in the lymph nodes nearest our larger joints because that is where ground zero--the colon--is located.