I'm Jeremy Shore for LIVESTRONG.COM, and this is how to strengthen the back of the legs. The best way to get strength in the back of the legs or the hamstrings is to incorporate these two exercises into your routine. Check these out. The first is a Romanian Deadlift, or an RDL. You're going to stand tall, with feet about shoulder to hip width apart, light bend in the knees. From here, keeping that neutral arch in your low back, you want to push your hips back, maintaining that light bend in the knees until you feel a stretch in the back of the legs or the hamstrings. From there, squeeze the glutes, stand all the way up, nice and tall, push the hips back, and repeat. Fire the glutes. From there, you move immediately into a stability ball leg curl. Lay on your back, keep the heels positioned right on top of ball, palms up at your sides. From here, squeeze the glutes and bridge up until you form a straight line from ear to ankles. From there, you simply curl the ball, pulling it towards you, bringing it towards your glutes, and then roll it back out, finishing on your heels. Pull the ball in. Should feel a squeezing through the hamstrings and the back of the legs. Roll it back down. Roll it in, and extend it back out. I'm Jeremy Shore for LIVESTRONG.COM. These have been two great moves you can use to strengthen the back of your legs.