GROSS ANATOMY

Detailed explanation-1: -Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes when performing a biceps curl.

Detailed explanation-2: -Bicep curls isolate the body movement of elbow flexion, or rather bending of the arm at the elbow. It targets the specific muscles located at the front of your arms called; biceps brachii, brachialis and brachioradialis.

Detailed explanation-3: -A biceps curl usually starts with the arm in a fully extended position, holding a weight with a supinated (palms facing up) grip. A full repetition consists of bending or “curling” the elbow until it is fully flexed, then slowly lowering the weight to the starting position.

Detailed explanation-4: -Eccentric action The muscle actively lengthens under tension or returns to its resting position from a shortened position. For example, the biceps brachii lengthen in the lowering phase of a biceps curl as it returns the arm to the starting position.

Detailed explanation-5: -For the biceps curl, the concentric (up) phase occurs when the dumbbell is lifted towards the shoulder. Therefore, elbow flexion takes place.