Spinal stenosis is the narrowing of spaces in the spine (backbone) which causes pressure on the spinal cord and nerves. About 75% of cases of spinal stenosis occur in the low back (lumbar spine).
Both static and dynamic measurements can be taken. Static coefficient of friction (SCOF) is the frictional. resistance one pushes against when starting in motion. Dynamic coefficient of friction (DCOF) is the frictional resis-. tance one pushes against when already in motion. For SCOF and DCOF, a slip occurs when pushing off with more.
In fact, the DLCO/VA is the transfer coefficient for the diffusion of CO into the blood, and is an essential part of the equation used to calculate the DLCO. 10 The global diffusing capacity is calculated as the DLCO/VA multiplied by the overall lung volume, VA.he primary reason for this is likely that the DLCO and DLCO/VA are static measures of oxygen diffusing capacity. Yet, the exchange of oxygen under conditions of exercise is very complex, involving alterations in pulmonary blood flow, lung volume and metabolism.