In our Zen 3 newsletter, we talked about Arnold’s biceps peak and his full-range workout (POF: standing curls, incline curls, concentration curls).

But Arnold’s secret to eye-popping bi’s: He trained his brachialis muscles directly. Those lengthy muscles snake under the biceps and connect down on the forearm. When the brachialis are beefed up underneath, they push the biceps higher when flexed—sky-high peaks. [Read more…]