Has the term Rotation created a motion that is not user-friendly for golfers?
I’ve personally gravitated away from the term Rotation and I am in the process of updating my website and papers to use the term “ Unit Turn” my clients are making more efficient motions so far just by changing that one term.
What Say You?
Only your thoracic spine (which consists of the 12 vertebrae in your upper and middle back) is designed to rotate significantly — about 40 degrees in each direction, according to Weingroff — when under compression. The lumbar spine (lower back) should rotate no more than about 12 degrees.
Forensic Golf Academy