Logan Steele
The bench press is a compound exercise that targets the muscles of the upper body. It involves lying on a bench and pressing weight upward using either a barbell or a pair of dumbbells. During a bench press, you lower the weight down to chest level and then press upwards while extending your arms. This movement is considered one repetition, or rep. The bench press is a cornerstone exercise in strength training, revered for its efficiency in building upper-body strength and muscle mass.
| Characteristics | Values |
|---|---|
| Type of exercise | Weightlifting |
| Muscles targeted | Pectoralis major, pectoralis minor, serratus anterior, subclavius, anterior deltoids, triceps brachii, lats, rotator cuffs, core, quads, glutes |
| Variations | Flat bench press, incline bench press, decline bench press, narrow grip bench press, single-arm bench press |
| Benefits | Upper body strength, muscle mass, bone health, endurance, stability |
| Risks | Acute injuries, tearing of muscles, tendons and ligaments, shoulder injuries |
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What You'll Learn
Pectoralis Major and Minor
The pectoralis major and minor muscles are both worked during a bench press. The pectoralis minor is a muscle of the upper chest and is one of the most superficial muscles on the anterior aspect of the chest or thoracic wall. It arises as three separate heads from the anterior surface of the third, fourth, and fifth ribs, near the corresponding costal cartilages. From this origin, the fibres of the pectoralis minor ascend superolaterally, angling upward and sideways towards the shoulder. The pectoralis minor is deep to the pectoralis major, which means that the pectoralis major is found superficial to the pectoralis minor and almost completely covers it.
The pectoralis major is a large muscle in the upper chest. It is the main anterior relation of the pectoralis minor. Together, the pectoralis major and minor produce various movements of the scapula. The pectoralis major is one of the muscles trained during a bench press.
The medial and lateral pectoral nerves innervate both the pectoralis minor and major. The primary nerve supply to the pectoralis minor comes via the medial pectoral nerve, one of the minor branches of the brachial plexus that arises from the cervical portion of the spinal cord. The pectoralis minor's blood supply is primarily from the thoracoacromial artery, which originates from the second part of the axillary artery.
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Anterior Deltoids
The bench press is a compound exercise that targets the muscles of the upper body. It involves lying on a bench and pressing weight upward using either a barbell or a pair of dumbbells. The bench press works the pectoralis major (or pecs for short), which is a large muscle in the upper chest, as well as the anterior deltoid (front of the shoulder) and the triceps (back of the upper arm). These muscles work together to allow the body to push the bar away.
The anterior deltoids are secondary muscles that are engaged during a bench press. They are located at the front of the shoulder and are responsible for the forward movement of the arm. During the bench press, the anterior deltoids are activated as the weight is lowered down to chest level and then pressed upwards while extending the arms.
To ensure proper form and engagement of the anterior deltoids during a bench press, it is important to maintain a stable shoulder position. This can be achieved by pulling the shoulder blades back and down, creating optimum shoulder stability for the lift. Additionally, keeping the elbows tucked and maintaining a slight arch in the back can help reduce strain on the anterior deltoids.
It is worth noting that the bench press can be performed with different variations, such as the incline bench press and decline bench press, which can alter the emphasis on the targeted muscle groups. For example, performing a bench press with a narrow grip will put extra emphasis on the triceps and forearms, while an incline bench press targets the upper chest and shoulders.
By understanding the role of the anterior deltoids in a bench press and employing proper form, individuals can effectively engage and strengthen these muscles to improve their upper-body strength and stability.
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Triceps Brachii
The triceps brachii is a large, thick muscle on the dorsal part of the upper arm. It is one of the muscles targeted during a bench press. The triceps brachii gets its name from its three muscle heads or points of origin: the medial head, the lateral head, and the long head. The primary function of the triceps is the extension of the elbow joint.
The triceps brachii can be trained in a variety of ways, including in isolation or with compound elbow extension movements. Isolation exercises include lying triceps extensions, behind-the-back arm extensions, cable push-downs, and standing triceps "kickbacks." Compound exercises include pressing movements like push-ups, bench presses, close-grip bench presses, tricep dips, and military presses.
During a bench press, the triceps brachii is targeted by lowering the weight down to chest level and then pressing upwards while extending the arms. This movement is considered one repetition, or one rep. A narrow grip bench press will put extra emphasis on the triceps and forearms.
It is important to note that overusing a muscle group can lead to injuries. When performing a bench press, it is recommended to have a partner to help with the weight and ensure proper form to prevent possible injuries.
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Latissimus Dorsi
The Latissimus Dorsi, or the 'lats', are fan-shaped muscles in our mid- and lower back. They originate in several places, including the posterior aspects of the pelvis, the sacrum, lumbar and lower thoracic vertebrae, and the posterior surfaces of the lower three ribs.
The lats are typically considered ''pull muscles'' and are used for movements like rows and pull-ups. However, they do play a role in the bench press, a 'push' exercise. During a bench press, the lats function as shoulder extensors, adductors, and horizontal abductors. They are also involved in shoulder flexion, specifically transverse flexion, and act as antagonists to protect the glenohumeral joint.
The lats help to bring the arms back to a neutral position during a bench press. So, they function as shoulder extensors when the elbows are in front of the torso, and as shoulder flexors when the elbows are behind the torso.
The Latissimus Dorsi is supplied by the sixth, seventh, and eighth cervical nerves, which create the thoracodorsal nerve. This nerve supply is important for the muscle's ability to contract.
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Serratus Anterior
The serratus anterior is a fan-shaped muscle that plays a crucial role in connecting and moving the shoulder blade (scapula) and the rib cage. It originates from eight muscular slips that attach to the side of the ribs and wraps around the rib cage, inserting along the medial border of the scapula. This muscle is essential for maintaining proper shoulder function and stability.
Each of the three divisions of the serratus anterior muscle works together to facilitate the movement of the scapula in various directions. It helps protract the scapula, pulling it forward and around the rib cage. This action is similar to a boxer throwing a punch, where the serratus anterior contracts to pull the shoulder blade forward.
The serratus anterior also contributes to stabilizing the scapula against the rib cage. When it contracts in conjunction with the rhomboid muscles, it helps to pull the scapula tightly against the back of the ribs. This stabilization is crucial for maintaining proper shoulder alignment and preventing injuries.
Injury to the serratus anterior is uncommon, but it can occur, especially with rib fractures. An avulsion fracture can cause the muscle tissue to pull away from the ribs, resulting in pain and limited function. If you suspect an injury to this muscle, it is important to seek medical advice to regain its full function.
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