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).
Ia sensory fiber response. Stretch alone: small dynamic response to muscle. stretch, a moderate increase in steady-state firing. Static gamma motor neuron stimulated: steady-state. response increase, dynamic response decrease. Dynamic gamma motor neuron stimulated: dynamic. response markedly enhanced, steady-state response. gradually returns to original level. Increase in activity of dynamic gamma motor neurons. increase the dynamic sensitivity of the type Ia endings. but have no influence on the type II endings.