Abstract: The invention relates to retention systems for retaining items during use of a mobility chair. According to one embodiment, a mobility chair includes a frame, wheels and a seat; and an item retention system including one or more retractable straps such that when, in use, a user is positioned on the seat, the one or more retractable straps are arranged to be extended and secured to retain one or more items positioned on the user's lap or on the seat in front of the user. A related method of retaining an item or items on the user's lap is also described.