The next process is stabilization and muscular endurance... these exercises will reflect that. I have pictures. Single Leg Touchdowns Starting Blocks Both of these exercises require nothing more than your own body. Single Leg Touchdowns focus on stabilization of the lower core, hips, knees, and ankles and will improve overall balance. The starting blocks exercise increases mobility of the hips, works the quadriceps & Gluts and increases your heart rate while improving the lower balance, muscular endurance and stabilization.