Normal levels of creatinine in the blood are approximately 0.6 to 1.2 milligrams (mg) per deciliter (dL) in adult males and 0.5 to 1.1 milligrams per deciliter in adult females. Muscular young or middle-aged adults may have more creatinine in their blood than the norm for the general population.
Fiber Types and Skeletal Muscle Hypertrophy The force generated by a muscle is dependent on its size and the muscle fiber type composition. Skeletal muscle fibers are classified into two major categories; slow-twitch (Type 1) and fast-twitch fibers (Type II).
When you work out you do a little damage to the fiber of the muscles, and that causes them to feel sore when they heal. There are, however, things you can do to help lessen the effects or prevent sore muscles, such as eating very specific types of foods to help strengthen your bodyâs ability to heal.