injury:patellar(1.3) Legstrengthingexercises also helps keep my injuries at bay.
Ankle Exerciser
...you can swing your leg and move the footplate this far, but doing the movement correctly by holding your leg in place to eliminate lateral leg...
Strengthing
Strengthening Exercises Performed using low weight and high ... Can): Stand with elbow straight and arm rotated inward (thumb pointed into leg).