SarahJ,
You are smart to look at joint stabilizing exercises as a way to improve overall function let alone reduce and eliminate pain as much as possible. Excellent!
A couple of things.
First, the pronation that we see at knee often works its way from the ground up. The leg is one l-o-n-g appendage with a lot riding on that knee. Due to gravitational pull, over time, those knees start to pronate to the midline of the body and the ankle tends to roll out - and you'll notice this is accompanied by an outward turn of the toes, also known as "duck feet".
So, from the start, work to correct this by consciously walking with toes straight ahead (at first it will feel like pigeon toes, trust me!)
Knee rehabilitation exercises focus on
countering the inward rotation at knee by pulling the knee outward, too. Thus offsetting the tendency to roll knees in by gently pulling them away from midline of the body.
OK, let's work our way back up to the hips, which you mention. All of the exercises on the link you sent look very good. There's just one thing I'd add, and that would be the focus on alignment during those exercises. If we just work our muscles around the joints to strengthen them, and they are out of balance and alignment, it is possible to simply strengthen them in a less than optimal position. Make sense?
So, for those hip exercises, add the following points of reference:
~ when the feet are flat on the floor
(bridge) they should be hip joint distance apart - knees same distance apart as well. Feet in parallel straight ahead, unless an outward-turned toe exercise.
~ consciously keep the knee from rolling in during, for example, the
bridge by pulling the knee gently counter to the inward roll. You should have active knee muscles before beginning any reps. Same with
single-leg bridges. If you just proceed with this without consciously placing the knees, you'll just pronate and continue to stress the knee joint.
~ the
standing stance exercise (which looks like a lunge) - put all of the above in place. Foot placed forward direct from hip. As you lunge in, do not let the knee roll inward. Knee should not hyper flex beyond your foot. Keep the spine upright and weight centered. Hips square, and engage the muscles of the pelvic girdle with a tuck to protect the back and the knee during the position.
~
hip flexion exercise - there is no instruction about the alignment with which you bring up that knee, and I think it matters. Put the above tips in place here, too.
I've mentioned
T-Tapp already and want to mention that this is one of the cornerstones of that workout - getting the feet and knees in proper alignment and following that up through the rest of the anatomy. That's why it is known as a physical therapy approach to fitness.
The key principles above can be applied to any exercise.
Lani