Anabolic steroids come in different shapes, forms, sizes, and colors. This section is to give the reader a general idea of what shapes and forms steroids come in. There are more fakes/counterfeit steroids on the market than there is legit/real steroids.
The biceps curl is a fundamental exercise targeting the biceps muscles, the muscles on the front of your upper arm. No other muscles are directly involved in a biceps curl, although several muscles assist during the movement.our biceps muscle contracts both concentrically and eccentrically during the biceps curl. When you curl the weight up, the biceps muscle creates enough force to overcome the external resistance. During this phase of concentric contraction, the muscle fibers shorten, pulling at the elbow joint and lifting your forearm.
During elbow flexion where the bicep is the agonist, the tricep muscle is the antagonist. While the agonist contracts causing the movement to occur, the antagonist typically relaxes so as not to impede the agonist, as seen in the image above.