Harriet Green I've been meaning to start strength training for, oh, several years now. I have a bag of dumbbells at home, resistance bands, even an alarming-looking kettlebell bought in an enthusiastic moment. I'm quite fit (I like to think!) – I clock up at least 10,000 steps every day, take the dog for endless walks and run up the escalators on the Tube. But I've never been properly strong.