slide 1 of 2, Quad sets, 1  Sit with your leg straight and supported on the floor or a firm bed. 2  Tighten the muscles on top of your thigh by pressing the back of your knee flat down to the floor. 3  Hold for about 6 seconds, then rest up to 10 seconds. 4  Do this for 8 to 12 repetitions several times a day.
Allograft definition, a tissue or organ obtained from one member of a species and grafted to a genetically dissimilar member of the same species. See more. Dictionary.com
Allograft vs. Autograft An autograft is a bone or tissue that is taken from a part of a personâs own body and transplanted into another. Often, surgeons will use a personâs own hamstring tendon to repair a damaged anterior cruciate ligament.