increased quadriceps weight 2010-07-12T02:36:45Z csmith MPheno.ontology increased quadriceps muscle weight increased quadriceps extensor weight 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 MP:0010226 increased quads weight increased quadriceps femoris weight abnormal quadriceps weight