Supersets are efficient and effective ways to work muscles harder without spending hours in your local gym. But this upper-body workout with dumbbells takes it one step further — giant sets.
If you’re unfamiliar with giant or cluster sets, the muscle-building method made it into our round-up of the 5 best ways to build muscle without lifting heavier weights. Instead of combining two exercises back-to-back, giant sets combine three or more.
