Ans/quest:
What’s this for?
Its a large muscle that originates near the sacrum and extends vertically up the length of the back. Its located on the side of <span>vertebral column and extends alongside the lumbar, thoracic and cervical sections of the spine.</span>
The talk test is a simple way to measure relative intensity. In general, if you're doing moderate-intensity activity you can talk, but not sing, during the activity. If you're doing vigorous-intensity activity, you will not be able to say more than a few words without pausing for a breath.
