What joint action occurs in a bicep curl?
Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes when performing a biceps curl.
What is the origin in a bicep curl?
The biceps brachii has two heads, or origins, which is where the ‘bi’ in biceps comes from. … The long head attaches to the supraglenoid tubercle of the scapula, which is just above the space where the humerus, or upper arm, enters the shoulder. The short head attaches to the coracoid process of the scapula.
Is a bicep curl flexion or extension?
For the squat, the muscle that causes knee extension is the quadriceps, and the muscles that cause hip extension are the gluteus maximus and the hamstrings. For the biceps curl, the muscle that causes elbow flexion is the biceps. … The joint moving is the spine, the movement is flexion.
What is the antagonist muscle in a bicep curl?
For example, when you perform a bicep curl the biceps will be the agonist as it contracts to produce the movement, while the triceps will be the antagonist as it relaxes to allow the movement to occur.
What happens to the muscle in a bicep curl?
Your 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.
Which bicep curl is most effective?
Arguably the most efficient exercise in yielding maximum bicep growth, a recent study by the American Council on Exercise found that the seated concentration curl yielded 97% bicep activity in contrast to EZ-bar curls (wide grip 75%; narrow grip, 71%), incline curls (70%), and preacher curls (69%).
Do bicep curls work forearms?
Because your forearms, or wrist flexors, only work as stabilizers and are not the primary muscles used in the bicep curl, bicep curls are not effective at building forearm muscle size.