Is there a significant difference between the triad ball and an overball? It looks like it is close to the same dimension. Just wondering if I could use my overball for this class instead. Thanks!
I think the Triad Ball is around 9 inches (we should check) and the overball around 7... There are reasons for both dimensions but I would suspect that you could slightly deflate your overball and come close to achieving the goals that Michael and Ton set when designing the Triad ball. The texture of the ball makes a difference too, but I don't think the size or the texture of the ball you choose would prohibit you from experiencing this workout as intended.
And Candace... thanks for the reminder. I need to stretch right now!