Forget planks — I did the Sorenson Hold every day for a week and here’s what happened

Woman doing a Sorenson Hold laying horizontally face down with hands behind her head, thighs resting on GHD machine and feet supported on foot plates

If you haven’t heard about the Sorenson Hold, it’s time to add this challenging, muscle-torching back and glute exercise to your strength program. 

As the name suggests, the Sorenson Hold is an isometric exercise. Like wall sits and planks, it means you don’t move, and primarily targets and strengthens your posterior chain muscles located down the back of your body, including the lower back, glutes, core and hamstrings.