Paraplegia is paralysis that involves loss of motor and sensory control of the trunk and two extremities. In addition, paraplegia for the most part is the result of a spinal cord injury due to an accident or other trauma. Most common accidents contain motor vehicle accidents and falls in those aged over 65.
PPK is inhibited by higher levels of ATP which is an indication that no more ATP is needed for the time being. Once ATP is consumed, amount of ADP is elevated which activates PPK.