Any seat where the back of the seat pan is higher than the front edge. Some chairs designed to accommodate forward-sitting posture have seats with a pronounced?forward slope to promote an open thigh-to-trunk angle
International Human Factors Consulting IHFC ERGO, Ergonomic Glossary,Ontario, Canada 2012. http://ihfcergo.com/information/ergonomic-glossary /, (Ergo - Canad) {746}