This exercise builds strength and resiliency about the patellar tendon as well as trains the quads eccentrically and opens up the front of the hip for stiff hips.
How To
Extend one leg and lower until the heel touches the floor
Keep the knee of the bent leg aligned with the foot
Flex your knees and lower your hips, Start slowly at first
Push back up
Benefits
Target the VMO muscles for kneecap stability. Can reduce effects of patellar tendinopathy. Develops explosive power.