It's not about weight, it's about fitness, and one component of being fit is to have relatively low body fat, because fat is not very efficient, whereas muscle is.
Deborah BullSo if the dance is five minutes long, make yourself run for perhaps eight minutes. That way, you over-train and the dance will seem easier.
Deborah BullI get to the theatre in plenty of time; I prepare my shoes in advance; I eat and drink the right things at the right time. The rest you have to leave to luck!
Deborah Bull