RT Book, Section A1 Colby, Lynn A1 Kisner, Carolyn A1 Dewitt, John A2 Kisner, Carolyn A2 Colby, Lynn Allen SR Print(0) ID 1134934266 T1 The Knee T2 Therapeutic Exercise: Foundations and Techniques, 6e YR 2012 FD 2012 PB McGraw-Hill Education PP New York, NY SN 9780803625747 LK fadavispt.mhmedical.com/content.aspx?aid=1134934266 RD 2024/04/24 AB The knee joint is designed for mobility and stability; it functionally lengthens and shortens the lower extremity to raise and lower the body or to move the foot in space. Along with the hip and ankle, it supports the body when standing, and it is a primary functional unit in walking, climbing, running, and sitting activities.