Exercises for your knees

1 exercise (kibadachi) for 4 minutes. 2 exercise (preparatory) 3 sets of 10 times. 3 exercise (very slow lowering and standing up) 3 sets of 5 times. 4 exercise (concentrated lowering) 3 sets of 5 times. 5 exercise (concentrated lowering) strengthens ankle. 3 sets of 5 times. Perform 3 times a week