Is it OK to Round Your Back in a Forward Fold?
If your goal is to stretch your hamstrings…
If you’re using a forward fold as a hamstring stretch, it’s often preferred to keep the back flat. Why? Because this ensures that all of the forward fold is appropriately coming from our hips and not our back.
Our hamstrings are actually a group of three different muscles that run from “sits bones” at the bottom of our pelvis to the back inside/outside of our shin bones under the knee:
A great modification for students with tighter hips is to bend your knees, which can make the hamstring stretch more comfortable, which in turn makes it easier to keep the back flat.