Related to seat height is the slope from front to back of the seat. Since the seat height should be selected to minimise pressure on the thighs, the backward slope should be minimised, and the front edge well rounded. It was noted that the option of making the slope adjustable is increasingly available on adjustable office chairs. Unfortunately, this results in the possibility of the slope being left at a setting where there is a substantial backward slope. This could lead to excessive pressure on the thighs and an impairment of blood circulation to the.