The right knee is perhaps one of the most misunderstood parts in a golf swing. Visit any public course and you're bound to see golfers of all ages, shapes, and sizes doing everything they can to abuse their golf swings by changing the bend in their back knee.
Today's Swing Tip is this: your right knee bend stays about the same throughout the swing, right up until your heel comes off the ground towards the end of the follow through. On the backswing, you load up onto a coiled right side. You don't straighten the knee, nor do you squat. On the downswing, the left knee separates from the right knee a little to start the weight shift forward.
Practice swinging your arms back and through in your living room, focusing on keeping the right knee flexed throughout.