Lordy, this was everything I feared. A room full of fit-looking, well-coordinated ladies, all in the appropriate garb, all well-versed in the routines and terminology. A mirrored wall that we all faced. A scary instructor clad in lycra, professing everything very easy. Me, in 10 year old running kit, hiding at the back, consistently out of time with everyone else.

The instructor assured us it would be fun. I was watching the clock from 5 minutes in. Explanations were given at high speed, in impenetrable language (every move had a name, which the rest of the class seemed familiar with), then the music was on, and we were all off again. Arms and legs were all doing different things. It was entirely impossible. I considered leaving.

I suppose if I were minded to be embarrassed, it was pretty embarrassing. I am confirmed in my view that aerobics is not, and will never be, for me. And I was heartily glad that no one was there who I recognised. But I got through it, after a fashion.

I will not do that again. Not in this life anyway. But at least I gave it a go! Another one down!