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
1a (1) : a cutting implement similar or identical to a pair of scissors but typically larger âusually used in plural (2) : one blade of a pair of shearsb : any of various cutting tools or machines operating by the action of opposed cutting edges of metal âusually used in pluralc (1) : something resembling a shear or a pair of shears (2) : a hoisting ...