Quantifiable tests for cervical myelopathy; 10-s grip and release test and 10-s step test: standard values and aging variation from 1230 healthy volunteers

The standard values of the 10-s G&R test, 10-s step test, and gripping power were established in this study. When these quantifiable tests are used as screening tests of cervical myelopathy, aging variation and gender difference should be considered.