Get Lean Legs and a Tight Butt Summer is just around the corner, so grab a pair of dumbbells (heavy enough to fatigue your legs within about 15 reps) and get ready to sweat! This workout combines lower-body strength moves and cardio bursts to help you burn fat and build lean muscle for even more gorgeous gams. Complete 1 set of each exercise back to back, without resting between moves. If you have time and energy, repeat the full circuit one more time. Please give back your valuable feedback.