4 min read SINGLE-LEG EXERCISES can be tough to master. Whether you're lunging or doing the dreaded Bulgarian split squat to build up your lower body, you've got to factor in balance, strength, and focus to ensure that you'll work through the reps without falling down. If you're struggling, you'll be better served by starting with the simplest unilateral leg movement: the split squat. When you take on the split squat, you're laying the foundations for the more involved exercises you'll take on down the line. But it's good for more than just beginners, too—given the split squat's simple setup, you'll be able to load up a ton of weight to build unilateral muscle and strength. But simple doesn't mean easy, and you'll have to understand the form before you start progressing to heavier loads. Before you grab some dumbbells step forward, and start jamming your knee into the floor, take note that it's extremely important to pay attention the movement here. Let Men's Health fitness director Ebenezer Samuel, C.S.C.S.…