If you want to build strong muscles that looks good and well trimmed, the key is to combine the exercises correctly. Keep in mind to exercise your body in a way that builds symmetry and a harmonious look. The point is to prevent an excessive load and to build a nice appearance. When building big, strong and well shaped muscles, it will be an advantage to exercise with heavy weights and perform fewer repetitions. Also remember to rest between training sessions. The muscles need rest and relaxation in order to grow bigger and stronger.