
The Arnold press is a variation of the dumbbell shoulder press, popularised by Arnold Schwarzenegger. It involves a twisting motion, which increases the range of motion and targets a wider range of muscles in the shoulders and arms. The Arnold press works the three heads of the deltoid muscle, the triceps, the trapezius, the serratus anterior, and the biceps. It is said to be easier on the shoulder joint than other overhead presses.
| Characteristics | Values |
|---|---|
| Type of Exercise | Compound Exercise |
| Muscle Groups | Deltoids, Trapezius, Triceps, Rotator Cuff, Serratus Anterior, Latissimus Dorsi, Pectoralis |
| Variations | Standing, Seated, Single-Arm, Alternating, Incline |
| Benefits | Increased Range of Motion, Improved Shoulder Stability, Stronger Bones, Improved Posture, Reduced Risk of Injury, Calorie Burn |
| Considerations | Proper Form, Warm-up, Gradual Increase in Weight |
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What You'll Learn
- The Arnold press is a compound exercise, meaning multiple muscle groups benefit
- The deltoid muscle is the primary muscle of the shoulder
- The triceps are required to extend the elbow to push up and forward
- The trapezius muscles help move the head, neck, arms, shoulders and torso
- The Arnold press is a variation of the dumbbell shoulder press, working a wider range of muscles

The Arnold press is a compound exercise, meaning multiple muscle groups benefit
The Arnold press was popularised by Arnold Schwarzenegger, a seven-time Mr Olympia winner. Schwarzenegger introduced the rotational movement to the standard dumbbell overhead press to stimulate all three heads of the deltoid muscle. The deltoid is the primary muscle of the shoulder, with three heads: the anterior, lateral, and posterior deltoid. These work together to lift, move, and stabilise the arms and shoulders. The Arnold press targets all three heads of the deltoid, as well as the upper back, triceps, and trapezius muscles.
The upper back, or trapezius muscles, are engaged to a high degree when performing the Arnold press. The trapezius muscles help with posture and spine stabilisation, as well as moving the head, neck, arms, shoulders, and torso. The triceps are also heavily worked during the press, as they are required to extend the elbow and push the weights upward. The rotational movement of the Arnold press also engages all four sections of the rotator cuff muscles, which help with arm rotation and stabilising the shoulder joint.
The Arnold press can be performed in a variety of ways, including standing, seated, single-arm, alternating, and incline. Each of these adaptations works different muscles and increases the difficulty of the exercise. The Arnold press is an effective exercise for improving upper-body strength and overall health, increasing bone density, and reducing body fat. It is also a good exercise for those with rotator cuff issues, as it is easier on the shoulders than other exercises.
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The deltoid muscle is the primary muscle of the shoulder
The Arnold Press is a popular exercise in the bodybuilding world, pioneered by Arnold Schwarzenegger. It is a variation of the standard overhead dumbbell press, incorporating a twist to increase the range of motion and target more muscles.
The deltoid muscle is the most visible muscle of the shoulder and is responsible for a wide range of motions. By engaging all three heads of the deltoid, the Arnold Press allows for a deeper and heavier push, promoting joint stability and improving the range of motion.
In addition to the deltoid muscle, the Arnold Press also works the trapezius (traps), triceps, and rotator cuff muscles. The traps are important for posture and spine stabilisation, while the triceps allow for elbow extension and forearm movement. The rotational action of the Arnold Press engages all four sections of the rotator cuff, which help with arm rotation and shoulder joint stability.
Overall, the Arnold Press is a compound exercise that targets multiple muscle groups in the shoulders, arms, and upper back, making it a comprehensive and effective exercise for building strength and stability.
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The triceps are required to extend the elbow to push up and forward
The triceps are a key muscle group targeted by the Arnold Press. This exercise is a compound movement, meaning it works several muscle groups in the upper body. The triceps are large muscles located on the back of the upper arm. During the Arnold Press, the triceps are required to extend the elbow to push up and forward, particularly when pressing the weights upward. This is a pushing movement, and the triceps are vital for this action.
The triceps are also engaged to a high degree when performing the Arnold Press. The elbow extension phase of the exercise, when pushing the weights upward, is when the triceps are most active. The triceps also work indirectly to help achieve lockout at the top of the lift.
The Arnold Press is a variation of the dumbbell shoulder press. Unlike the regular shoulder press, the Arnold Press involves rotating the palms outward while lifting dumbbells overhead. This rotational movement is what activates the triceps. The triceps are required to extend the elbow and push up and forward, which is a fundamental motion in the Arnold Press.
The Arnold Press is a popular exercise for bodybuilders, made famous by Arnold Schwarzenegger. It is an effective way to build upper-body strength and muscle mass. The triceps are one of the main muscle groups targeted by this exercise, along with the deltoids and trapezius muscles. By engaging these muscle groups, the Arnold Press can improve functional fitness and increase strength in pushing exercises such as push-ups and bench presses.
The Arnold Press can be performed in a variety of ways, including standing, seated, or using a single arm. The bottom half of the Arnold Press, or the half-kneeling position, emphasises the shoulders and removes the triceps from the movement. This variation can be useful for those who want to preserve arm strength or have limited overhead mobility.
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The trapezius muscles help move the head, neck, arms, shoulders and torso
The Arnold Press is a staple exercise in the bodybuilding world, popularised by Arnold Schwarzenegger. It is a variation of the dumbbell shoulder press, which involves incorporating a twist and adding depth to the range of motion. This compound exercise works the shoulder, chest, arms, and back muscles.
The trapezius muscles, also called the traps, are large muscles in the upper back that help move the head, neck, arms, shoulders, and torso. They are crucial for maintaining and adjusting posture and spinal stability. The trapezius muscles are divided into three sections: descending (superior), ascending (inferior), and middle. The superior portion attaches to the skull and neck, extending the head at the neck. The middle portion adducts the two scapulae, and the inferior portion depresses the scapula.
The trapezius muscles work in conjunction with other muscles to produce coordinated movements, particularly involving the scapula. For example, the rhomboids work with the trapezius to retract and stabilise the scapula, playing a key role in shoulder movement and posture. The levator scapulae elevates the scapula and works with the upper trapezius to lift and rotate the shoulder. The latissimus dorsi assists in the downward rotation of the scapula and provides strength and stability during arm and shoulder movements.
The trapezius muscles are also essential for throwing objects, as they work with the deltoid muscle to facilitate the necessary rotation. Additionally, the trapezius muscles help maintain scapular stability, allowing the shoulder to move efficiently during various activities, such as pushing, reaching forward, or pulling down.
Overall, the trapezius muscles are crucial for various movements and maintaining posture and spinal stability. By strengthening the trapezius muscles through exercises like the Arnold Press, individuals can improve their overall stability, posture, and range of motion.
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The Arnold press is a variation of the dumbbell shoulder press, working a wider range of muscles
The Arnold press is a compound exercise, meaning that the growth is shared with other parts of the upper trunk. The primary muscles targeted are the three-headed deltoid muscles of the shoulder. The rotational movement of the Arnold press means that all three heads of the muscle are targeted: the posterior, lateral, and anterior deltoids. This is in contrast to other shoulder presses, such as the military press and overhead press, which focus more on the anterior and lateral deltoid heads.
The Arnold press also works the triceps, trapezius, and serratus anterior muscles. The triceps are required to extend the elbow to push up and forward during the pressing phase of the exercise. The trapezius muscles of the upper back are engaged to a high degree, helping to improve posture and reduce the risk of shoulder injuries. The serratus anterior is important for shoulder health, helping to rotate the scapulae when bringing the arms above the head.
The Arnold press can be performed in a number of ways, including standing, seated, single-arm, alternating, and incline variations. Each of these adaptations works different muscles to varying degrees. For example, the seated Arnold dumbbell press helps to avoid overarching the back, while the single-arm press forces the core to work harder, making it a great abdominal workout.
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Frequently asked questions
The Arnold Press is a variation of the standard overhead dumbbell press. Instead of lifting the dumbbell up and down in a linear fashion, you incorporate a twist and add depth to your range of motion.
The Arnold Press primarily targets the deltoid muscle, which is the primary muscle of the shoulder. It also targets the triceps, trapezius, serratus anterior, and the rotator cuff.
The Arnold Press increases the demand on the rear deltoids, in addition to the lateral and anterior deltoids activated by the traditional shoulder press movement. It also improves your range of motion, increases bone density, reduces body fat, and burns more calories than a traditional shoulder press.











































