Try these stretches to strengthen your lower leg muscles.Calf raises. Stand with the balls of your feet on a step and drop your heels until they fall below the step. Reverse the movement and stand on your tiptoes.Toe curls. Stand or sit with a towel under your bare feet and curl your toes around the towel then release.One-legged bridges. Lie on your back with your knees bent and feet on the ground, raise our hips until they form a straight line between your shoulders and knees. Extend one leg in line with your knee and …