Lie flat on a bench or the floor, your knees bent, pushing your feet into the floor. Press a pair of dumbbells into the air, locking out your elbows. Lower the bells slowly until they touch your chest ...
Functionally, the biceps are key players in elbow flexion (bending the arm), forearm supination (rotating the forearm so the palm faces upward, like turning a doorknob or opening a jar), and shoulder ...
With a slight bend in the knees, push your hips back and slowly lower the bells towards the ground, pinching your shoulders back and maintaining a flat back. When you feel a stretch in your hamstrings ...