Your achy knees while running may be due to weak hips. Strengthen the hips and running may be enjoyable again. not to mention, these exercises help shrink your hips! - I personally am not a runner, but I do happen to have very achy knees!
Steal VS Model Lindsay Ellingson's Workout Secrets
Go Splits! 9 Stretches to Get You There: If you too always wanted to do a split, you need flexible hips and hamstrings. Practice these nine stretches and you will soon be on your way. I've wanted to do the splits since I was a little girl.
Fun and Challenging: Yoga Poses For Your Bucket List
12 Yoga Exercises To Get Your Thighs And Hips In Shape :- These 12 yoga asanas for thighs work wonders at preventing the accumulation of fat in the problem areas like the thighs, hips etc. Open the hips !