I've NEVER heard of measuring both legs and arms. Usually, which ever one you do, you do the same one at the same location.
Pre-liquid diet 392; VSG'd on 6/10/11; 5'9"; SW 368/ GW 195?
Pounds lost: mth1=26.7; mth 2=21.2; mth 3=24.8; mth 4=13.8; mth 5=14.2;
mth 6=11.8; mth 7=9.2; mth 8&9= 17.2