There are two types of muscle fibers:
1 - Muscle fibers rapid contraction (Fast Twitch Fibers)and are the muscle fibers that contract quickly to give a large force for a short time, and is the fiber with the bulk of the muscle and the greater the proportion of these fibers when the person has increased the proportion of success in sports power, and building objects.
View more Link here http://www.reviewlization.com/truth-about-six-packs-abs-review/
2 - Slow muscle fiber contraction (Slow Twitch Fibers) and are the fibers that contract slowly and take long periods of work under medium voltage, these fibers are used in cardiovascular exercises and endurance exercises, and the greater the proportion of these fibers has increased the success rate of the person in Kalmarzn endurance sports.
Clarify the anatomical drawing of the most important in the sport of skeletal muscle body building
1 - Muscle fibers rapid contraction (Fast Twitch Fibers)and are the muscle fibers that contract quickly to give a large force for a short time, and is the fiber with the bulk of the muscle and the greater the proportion of these fibers when the person has increased the proportion of success in sports power, and building objects.
View more Link here http://www.reviewlization.com/truth-about-six-packs-abs-review/
2 - Slow muscle fiber contraction (Slow Twitch Fibers) and are the fibers that contract slowly and take long periods of work under medium voltage, these fibers are used in cardiovascular exercises and endurance exercises, and the greater the proportion of these fibers has increased the success rate of the person in Kalmarzn endurance sports.
Clarify the anatomical drawing of the most important in the sport of skeletal muscle body building