This 20-minute dumbbell workout from fitness trainer Kat Boley is a great example of the kind of session I love. It contains just five moves but manages to hit the upper body, lower body and core, and you just need a set of dumbbells to do it. Be it for the chest, back, shoulders, abs, arms or even legs, there are a number of dumbbell only workouts that give the same result as those […]