what muscles for archery
9 - shoulder outward rotation in Bowfit brochure). Accessory archery muscles of the shoulder and upper body are the biceps and triceps (see figs. 10 & 11). The biceps group is responsible for flexing or bending the elbow as well as helping to lift the arm forward.They assist the posterior deltoid in pulling the drawing arm backward during the draw phase.Editor's note: The other muscle groups will be covered in upcoming articles.). The archery muscles of the shoulder and upper back are the most obvious and often the most overlooked muscles. They are not necessarily the same muscles you use every day or the ones that you might work out regularly in the gym.