I've had a bit of a look, but sorry Jeremy, I can't find anything about Michelle's age. I'd agree with you and say late 40s, possibly early 50s, but I wouldn't think Michelle is older than that. Either way, regardless of her age, I think Michelle looks great. A beautiful face and smile(my favourite part) and a very well developed muscular physique. Michelle's physique certainly doesn't look out of place on a National stage.