According to sports nutrition researchers, Metabolic Stretching your muscles are designed to work well only in a narrow range of almost zero acidity. Arterial blood works best with no acid at all. What does that mean? Your body has a secret balance that is not only designed to keep you healthy, but to make moving more comfortable and efficient. That balance is your acid/alkaline balance. Acidity and alkalinity is measured by a unit called pH. It can be measured by a liquid pH reagent, by a pH meter, or by pH reactive strips.( The pH strips are not very accurate once the package has been opened.)
For example, at rest, in a healthy person, muscle pH should be about 6.9, while arterial blood should be about 7.4." Research shows that as you begin to exercise, the muscles draw fuel to provide energy to move or stretch. The more time the muscles are out of "rest" the more acid they produce as they burn the fuel. So the harder a muscle has to work the quicker you "go acid."
When the muscle pH drops below 6.5, the muscles cannot fuel themselves properly, nor can they rid themselves of the rapid acidic buildup because the hydration cycle is interrupted. The ability of muscle to generate power and movement is then restricted. The blood flow and breathing are also dramatically affected.
