@carnage4life IMO the article asked the wrong questions. The desk helped when I threw out my back & needed to shift my position frequently. I'd sit for 20 minutes, stand for 20 minutes, sit again. I also adjust the height of the desk so I can type with my arms held at a comfortable angle. Else I'd need to raise my chair to where my feet are dangling off the floor. Plus trying to sit on a too tall rolling office chair risks the chair scooting backwards and me landing on the floor instead.