I have a sit/stand desk in my cube. I've been gradually working up how much I stand all day, but I still sit for a large portion of the day. You need to stand

I have a sit/stand desk in my cube. I've been gradually working up how much I stand all day, but I still sit for a large portion of the day. You need to stand correctly. If you lock out your knees and other things, it won't necessarily be better than sitting.