With the rows of plates, stacks of barbells and a selection of benches to use at your disposal, a gym might sound like the most obvious place for developing upper body muscle.
However, once armed with a pair of the best adjustable dumbbells, you can still build chest strength and definition at home with no weight bench in sight. In personal trainer Caroline Girvan’s 10-minute workout, she uses a box, but you can easily switch that for a yoga mat instead.
