However, too much of white blood cells doesn't always mean a good thing. A high white blood cell count(also called leukocytosis) isn't a specific disease but could indicate an underlying problem. This is why high white blood cell count always requires further medical evaluation. A normal white blood cell count is between 4,500 and 10,000 cells per microliter.
The first system is the Adenosine Triphosphate (ATP) is the immediate source for energy that is stored in muscle cells. As the phosphate is broken down (there are 3 of them for each molecule of ATP) energy is released. This system is only good for very quick and powerful movements.Then, ATP runs out and much be re-synthesized so the process can be repeated. Oxygen is not required for this to work, there are no waste products, but it is extremely short in duration. This system will last for about 0.5 minutes.his system is only good for very quick and powerful movements. Then, ATP runs out and much be re-synthesized so the process can be repeated. Oxygen is not required for this to work, there are no waste products, but it is extremely short in duration. This system will last for about 0.5 minutes.
They can use both aerobic and anaerobic metabolism almost equally to create energy. In this way, they are a combination of Type I and Type II muscle fibers. Type IIb Fibers - These fast twitch fibers use anaerobic metabolism to create energy and are the classic fast twitch muscle fibers that excel at producing quick, powerful bursts of speed. This muscle fiber has the highest rate of contraction (rapid firing) of all the muscle fiber types, but it also has a much faster rate of fatigue and can't last as long before it needs rest.