Chris, I don't think there's anything much better than Callanetics., unless you go full-on ballet. It's based on ballet moves plus core strength. You know it's effective by how long it's been around. Good for you that you can do a plank already.
I just finished my workout - Treadmill, core training (now I can say Callanetics moves), squats and my wall push-ups.
I just finished my workout - Treadmill, core training (now I can say Callanetics moves), squats and my wall push-ups.