Hey there,
Just curious on how this two exercises reconcile.
Looking at standing pike technique video, one should maintain apt as long as possible and not start rounding upper back to avoid stress on lumbar discs.
Looking at jeff curl, completely opposite. Curl (round) as much as you can. ppt from the beginning, rounding of upperback and only at the bottom position the two exercises look similar.
Is jeff curl stressing my discs? Why dont we start standing pike by rounding upper back and ppt if so?
thanks
Feli