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).
These fibers rely heavy on the glycolytic energy system (using the method of anaerobic glycolosis to produce ATP). Type IIa fibers are in the middle of the muscle fiber spectrum, as they are less fatigue resistance, produce more muscular force, and contract at a faster speed than slow twitch fibers.Type IIb: Fast Twitch Fibers.ead on here to learn more about the 3 different muscle fibers and how they build differently depending on the type of sport. O ur body is composed of many different groups of muscles and each person has a unique composition of muscle tissue in their body.