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.
-indexOf(char/substring). An extremely useful string method, indexOf() allows you to search whether a particular character or substring exists within a string, and if so, where the first character of the character/substring is located. If no match is found, -1 is returned instead.