Another is the First Solo Ascent, which is the first ascent made by a single climber. This is most important on high-level rock climbing, when the climber has to provide his own security (self-belaying) or even when climbing without any protection at all (often recorded as First Free Solo Ascent). Another type of ascent, also known as FFA (not to be confused with First Free Ascent as listed above) is the first female ascent. While not generally considered as important, this designation remains significant on some difficult, limit-pushing climbs, where the first female ascent may not happen until well after the FA, due to possible difficulties encountered by female physicality.