Increased phosphokinase after exercise may be due to muscle fatigue or muscle injury.
Creatine kinase, also known as creatine phosphokinase, is mainly found in skeletal muscle, cardiac muscle, brain tissue and smooth muscle, and most of it is distributed in the cytoplasm and mitochondria, which plays an important function in intracellular energy transportation and muscle contraction. Its level is affected by gender, age, race and physiological state. For example, the level of creatine kinase can be elevated after exercise, and the more strenuous and prolonged the exercise, the more obvious the elevation.
Under normal circumstances, muscle cells are structurally intact, and creatine kinase phosphate cannot cross the cell membrane into the bloodstream; after a large amount of exercise, muscle fatigue increases the energy uptake, and the permeability of the cell membrane is changed, so creatine kinase phosphate can pass through the cell membrane into the bloodstream, causing the level of creatine kinase phosphate to rise slightly.
If strenuous exercise or improper exercise leads to muscle injury, a large number of muscle cells are damaged, the cell membrane structure is destroyed, a large number of phosphocreatine kinase into the blood, the level will rise significantly. If the phosphocreatine kinase rises significantly after exercise, accompanied by muscle pain and other symptoms, it may be muscle injury, it is recommended to go to the hospital for a clear diagnosis and standardized treatment, so as not to delay the condition.