3. Lunges
This exercise can help work the back muscles, front and rear thighs, core muscles, and can also help shape your legs at the same time. Stand with your feet shoulder wide apart and take a big step forward with your right leg until your left leg is roughly parallel to the ground. Make sure your posture is straight and push yourself with your right leg to the starting position. Then repeat the same with your left leg. Take a pair of dumbbells to make it more challenging.