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 ...
The Gikpal 66-Pound 4-in-1 Adjustable Dumbbell Set is on sale for $83, a 54% discount from its normal price of $180. This ...