Area defined by the parts of the body and assistive devices that are in contact with the supporting surface. See: repetitive lifting test
base of support
area of ground surface (between and beneath the feet) covered by the body silhouette in an erect subject; the wider the base of support, the greater the stability of the erect body; the centre of gravity is more easily maintained within the base of support
Despite all efforts, when the COG can no longer be maintained over the center of the base of support provided by the two feet, the base of support is extended with the use of a cane, walker, or a wheelchair.