RT Book, Section A1 Dutton, Mark A2 Dutton, Mark A2 Schneider, Melissa A2 Lwin, Janice A2 Bartlett, Cassady A2 Burke-Doe, Annie SR Print(0) ID 1188490496 T1 Gait, Prosthetics, and Orthotics T2 Physical Therapist Assistant Examination Review and Test-Taking Skills YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264268887 LK accessphysiotherapy.mhmedical.com/content.aspx?aid=1188490496 RD 2024/03/28 AB Table Graphic Jump Location|Download (.pdf)|PrintHIGH-YIELD TERMSBase of support (BOS)The distance between an individual’s feet while standing and during ambulation, including the part of the body in contact with the supporting surface and the intervening area. The normal BOS is considered to be between 5 and 10 cm.Center of gravity (COG)The point at which the three planes of the body intersect each other. That point is approximately 2 in (5 cm) anterior to the second sacral vertebra in the human.Step lengthThe linear distance between the right and left foot during gait. Step length is measured as the distance between the same point of one foot on successive footprints (ipsilateral to the contralateral footfall).Stride lengthThe distance between successive points of foot-to-floor contact of the same foot. One stride is a full lower extremity cycle. Two step lengths are added together to make the stride length.CadenceThe number of separate steps taken in a certain time. Normal cadence is between 90 and 120 steps per minute.VelocityThe distance a body moves in a given time, calculated by dividing the distance traveled by the time taken.