base of support

Also found in: Acronyms.

base of sup·port

(BOS) (bās sŭ-pōrt')
Area defined by the parts of the body and assistive devices that are in contact with the supporting surface.
See: repetitive lifting test
References in periodicals archive ?
24] The limits of these spontaneous sways, known as the limits its of stability, are a function of the sway direction and are determined by the sensory conjuncture and the characteristics of the base of support.
When the COG moves beyond the limit of stability, a fall occurs unless a stumble or a rapid step repositions the base of support beneath the COG, securing additional support and enlarging the base of support.