increased quadriceps weight 2010-07-12T02:36:45Z MP:0010226 MPheno.ontology csmith increase in the weight of the group of four muscles (rectus femoris, vastus intermedius, vastus lateralis, and vastus medialis) which extend down the front of the thigh and are the major extensors of the knee joint increased quadriceps extensor weight increased quadriceps femoris weight increased quadriceps muscle weight increased quads weight abnormal quadriceps weight