What is the main function of the biceps brachii?

The biceps is a muscle in our body. Usually, we can improve various aspects of physical fitness through muscle training. However, when exercising this kind of biceps, people usually don’t know what effect, function, and use it. If we understand the main function of the biceps, we will be more focused and serious when exercising. So what is the main function of the biceps?

The biceps brachii is one of the three major skeletal muscle groups and is a member of the limb muscles. The long head originates from the supraglenoid tuberosity of the scapula, and the short head originates from the coracoid process of the scapula. The long and short heads merge into a muscle belly in the middle of the humerus, descend to the lower end of the humerus, and the integrated tendon ends at the radial tuberosity and the fascia aponeurosis of the forearm.

When fixated proximally, the biceps brachii flexes and externally rotates the forearm at the elbow joint, and flexes the upper arm at the shoulder joint. When fixated distally, the biceps brachii brings the upper arm closer to the forearm. Electromyographic observations showed that the biceps brachii only had obvious electromyographic activity when the forearm was externally rotated with the palm facing forward and the elbow flexed. However, when the forearm is rotated inward, even when the palm is turned sideways to the body or the elbow is bent behind the body, there is little or no potential activity in the biceps brachii. This is also one of the main reasons why biceps exercises basically make the palms hold the equipment forward, located in the superficial layer of the anterior muscles of the upper arm. Function: Flexes the shoulder, elbow and supinates the forearm. When the biceps brachii contracts, the elbow joint flexes; when the biceps brachii relaxes, the elbow joint extends or the forearm hangs down.

Biceps training

High training volume

When it comes to biceps training, few people do enough sets. People who are afraid of hard training often say that the biceps are a small part and that no more than 9 sets can be performed at a time. In fact, even if you do 20 sets you can't "shock" it, you're just "tickle" it. An efficient shock training requires at least 20 sets, and all 20 sets must be formal sets, and each set must be done to exhaustion.

In the above content, we introduced the main functions of the biceps. If you know these functions and benefits, you can exercise appropriately during your rest time to improve your physical fitness. Exercising the biceps is also a bodybuilding method. You can also improve your physical fitness through this method, but this kind of exercise consumes a lot of physical energy, which must be replenished in time.