Edema... mechanisms responsible for edema formation include increased capillary blood pressures, capillary permeability, decreased colloid oncotic pressure and lymphatic obstruction.

Unlike Body'Fit pH Fitness, during exercise that shifts up to 90% of blood flow to skeletal muscle, all the above mechanisms apply. Capillary pressure is greatly increased by metabolites like lactic acid dilating the sphinctors on the resistance vessels (small arteries and arterioles), capillary permeability is very high due to metabolites, the particle density of fluid outside the cells consequently becomes very high and at a certain point stops gas exchange. And because circulation throughout the body is greatly limited the lymphatic system is not able to do an efficient job in moving fluid in the humoral circulation.

This is why Body'Fit pH Fitness is designed to maintain capillary pressure and permeability at levels that don't decrease colloid oncotic pressure, and thereby improves circulation throughout our entire organism including the lymphatic system.