Inside, the walls are unfinished and the floor uneven, but there is just about enough room for a work-bench and a handful of basic machine tools.

Stand side-on to a bench with your closest hand and knee on the bench, back parallel to the floor (neck in line) and a dumbbell in your other hand, arm hanging straight down.

A few years ago, the limit of her world had been the park two blocks down the street, and later the stone bench across the street from their apartment; now it was their fifth-floor balcony.