Carrying out an independent and autonomous life is deemed a basic need for people with mobility impairments (Cooper, Rninger, and Spaeth, 2006). According to the 2009 US Census Bureau News, 3.3 million people who are 15 or older use a wheelchair. Another 10.2 million use an ambulatory aid such as a cane, crutches or walker and 11 million disabled people need personal assistance with everyday activities. For adults 65 and older over 40% are reported to have some form of disability (U.S. Census Bureau News, 2009). Thus, the demand for more innovative assistive technology (AT) development is needed by a large elderly population and those with movement impairments.