I doubt that's safe to do. Lol that looks like an unnecessary workout for your core. It's like his back might suffer more because of this. I think there are lots of core workouts out there that can be better.
I doubt that's safe to do. Lol that looks like an unnecessary workout for your core. It's like his back might suffer more because of this. I think there are lots of core workouts out there that can be better.