Final answer:
Metabolic processes in muscle contraction feature the conversion of ATP into energy for contraction, which is regulated by enzymes that are activated or inactivated through phosphorylation. Muscle fibers vary in their metabolic pathways, with oxidative fibers using aerobic metabolism and glycolytic fibers using anaerobic glycolysis.
Step-by-step explanation:
The inter-conversion feature of metabolic processes in muscle contraction involves the transformation of adenosine triphosphate (ATP) into mechanical energy for muscle contraction and its subsequent regeneration through creatine phosphate, anaerobic glycolysis, and aerobic metabolism. The converting enzyme is activated or inactivated by covalent phosphorylation or de-phosphorylation.
The speed of muscle contraction depends on the ATPase activity of myosin, and the type of muscle fiber determines its primary metabolic pathway for ATP production. Fast oxidative (FO) muscle fibers represent an intermediate form between slow oxidative (SO) fibers, which utilize aerobic metabolism, and the fast glycolytic (FG) fibers, which rely on anaerobic glycolysis for short, powerful bursts of energy but fatigue quickly.