I've somehow put on two stone in the past 4/5 years, probably as the result of a more sedentary job than I had before and an unresolved health issue that caused dangerously low iron levels and general fatigue. The health situation is mostly improved but it flares up a couple of times a year, thankfully without such low iron though.
Anyway, I'd like to lose weight but more than that, I'd like to be fitter. Four years ago I started weekly PT sessions at home and I was pretty good at doing the 'homework' exercises another two or three times each week. I stopped when the PT moved away and didn't restart as that's when I started having investigations for the low iron etc. I'd like to do a class that my 10-yr-old can also do. She's hypermobile and isn't built for running plus she's involved in a regular sport at the weekend so Parkrun isn't what I'm after. She wants to be stronger, specifically in her upper body as that will help with her sport as well as with holding the weight of the reasonably heavy musical instrument she plays - she's small and fairly light for her age but isn't as strong as her peers. I figure my upper body is as good a place to start as any!
Is there a class aimed at parents and children, that isn't running-based and would help develop upper body strength? If so, what's it likely to be called? I've looked at strength training, weight training type things but none seem to be aimed at children. Would a rowing class be any good for building upper body strength? Does anyone know of something that would fit the bill and happens to take place in SE London?