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.
Tension is produced while the muscle shortens, causing joint movement. e.g. occurs in the bicep brachii during the upward phase of a bicep curl. The bicep brachii produces tension and shortens. It pulls the forearm upwards to cause flexion of the elbow.