Abstract. Hyperbranched polymers are polymers based on A x B-monomers, ie, monomers having one B-functionality and two or more A-groups resulting in polymers with a potential branching point in each repeat unit.
Source(s): 30 years in sports medicine and clinical nutrition. The biceps brachii is a antagonist of the triceps brachii. If the triceps brachii will contract, the biceps brachii will stretch and vice versa. Pushups. I do about 500 per day (200 AM, 300 PM) and my arms aren't huge, but they're toned pretty well, I guess.
The biceps brachii is a stronger forearm supinator when the elbow is flexed. During elbow flexion, motor units in the lateral portion of the long head of the biceps are preferentially activated, whereas during forearm rotation, motor units in the medial portion are preferentially activated (Ter Harr Romeny, et al. 1984).