Re: Glute Ham Developer Vs. Swiss Ball
Actually, if you're using the Swiss ball to sub for a GHD, meaning anchoring your feet somewhere and lying with the swiss ball underneath your thighs, then the bigger the better, no matter how tall you are. The reason for this is that you want to be as high off the ground as possible to allow for a greater range of motion. You can also aid in this by placing the ball on a step or box to elevate it. When I do this exercise at Lifetime I use the safety bars on the squat cage to anchor my feet. I set them 1 space apart on the same side and jam my feet in between, just like on a GHD. It hurts at first, because there's no padding, but you get used to it.