by SurferX on Thu Sep 24, 2009 10:12 am
It depends mainly on how many sets you do on a muscle group during your workout. If you are only doing like 2-3 sets, then yes you need to hit it multiple times a week. My rule of thumb is doing at least 6 sets on a small muscle group (i.e. biceps, triceps, shoulders) and at least 9 sets on a big muscle group (i.e. chest, back, abs, and anything in the legs) if you are going to only work them once a week. Each of those sets needs to be heavy and intense, no slacking off or coasting through your workout. If your intensity is low or you aren't doing that many sets then yes you need to up your volume to compensate and work the muscle groups multiple times a week.