The Ultimate Back & Biceps Workout
This routine from Cre8 Fitness' Simon King will graft bulging bis onto skinny arms. "This workout hits the muscle fibres responsible for not only strength, but also growth and lean muscle gains," says King. "You're working in the realms of strength, hypertrophy and muscle endurance in one routine." If those painful trisets don't get you, the 5-minute finisher will.