I forgot to mention that when sitting, it's best to elevate your feet and/or legs as much as possible, in an effort to bring your knees as level to your shoulders as possible.

I sit at a desk quite a bit during the day at work and try to elevate my feet up off the floor.

I also take numerous "7th inning stretches" while at work. It's good to move and stretch frequently.

Denise

Retired and loving it!