You want lean, strong legs (and a tight, lifted butt!)—these four moves work multiple muscles at once while improving balance and strength. You'll feel the burn not only in the working leg but in the supporting leg, too. Do this sequence in order (first on right side, then on left), plus 30 to 60 minutes of cardio, six times a week. | Health.com
When it comes to lower-body workouts, you already know lunges and squats are key. But if you need a little help revamping your routine, we've got you covered with some fresh moves. These five exercises from Nike master trainer Traci Copeland take traditional moves to the next level with the help of just a few pieces of equipment.