Bill Hartman 26:03–29:14
Okay. So this is actually useful to know. I don't know how valuable it is from a return on investment standpoint, but the difference is where the load on the back leg is going to go as far as the contribution of joints. Okay, so if you are in an ER position of the foot. So there'd be like plantar flexion/supination, which would be like the dorsum of the foot is supported on a bench or something like that. You're going to use more of the backside hip to push yourself up and out of the split squat. Okay, keep in mind that when you elevate the rear foot, you shift load anteriorly anyway. So if you look at the last research that I saw, they were using a bench, and I can't remember how high it was, but it's like a typical gym bench. And I think that the maximum load to the front leg that they could produce was 85% of the total load. So it was body weight load plus bar, right? But if you use one of those padded bars and you hook your foot over it and you dorsiflex, you use more of the backside knee to distribute the load onto the back leg. Once again, it's not terribly valuable, but I can see little tweaks here and there that it might be useful to distinguish between the two. But it's also going to direct you towards where somebody might be lacking some movement that will influence the position and the outcome of the split squat, right? So think about as I sit down, so if I have the dorsum of my foot supported, knowing I'm going to load, like I'm going to be pushing through what would be traditional hip extension coming out of that. It's like, okay, is that really what I want to do? Or do I want to shift more of that load to the hip extension on the lead leg? And so again, people would call this single leg training. It's like, well, okay, if I get two feet in contact with something I'm using both sides, it's just how am I using it. And again, it's a subtle, but if you do both of them, like just go to the gym today and do both of them, you'll feel the difference. You'll feel the difference in where you're distributing the load. But you can manipulate the height as well. And again, that's going to push some of that load more towards the back. The question is, what do you want the outcome to be? I have people that come in and they say, well, don't I have to do a split squat this way? And it's like, well, no. There are many ways to execute. It just depends on your intended outcome.
split squat biomechanicsrear foot elevationload distributionhip extensionsingle leg training