Los 4 mejores ejercicios para el pectoral superior.

The 4 best exercises for the upper chest

July 21, 2025

TABLE OF CONTENTS

Introduction

Developing the upper pectoral is essential for maximizing the chest's aesthetic appearance, making it fuller and more elevated. This part, also known as the clavicular head, is often a challenge for many people because they generally have not been taught how to train it correctly.

In this article, you will discover everything you need to know to develop your upper pectoral in the simplest and most effective way, from its anatomy and biomechanics to the exercises you should do.

Parts of the pectoral

Let's start with the basics by learning about the parts of the pectoral. A brief anatomy lesson that will help you better understand exercise selection later on.

Middle pectoral (sternocostal)

It is the most voluminous part of the pectoral; its fibers run from the sternum to the ribs. It is also the area that protrudes the most, especially when we contract it.

Despite being the easiest part to work, many people tend to overtrain it without balancing the rest, which can create a drooping appearance if the upper pectoral is not well developed.

Upper pectoral (clavicular)

It is located just below the clavicle, hence its name, which is precisely where all its fibers are located. When developed, it gives the pectoral a rounded shape, improving the line between the shoulders (deltoid) and the pectoral, creating a more voluminous appearance.

It is the most difficult area to develop, as it requires very specific stimuli and control of the incline angles during training.

Lower pectoral (abdominal)

It is the lowest part of the pectoral; it is located in the upper abdomen, where its fibers are found, acting as a kind of fascia covering the abdominal muscles. This part gives the lower chest its “U” shape.

When it is underdeveloped, it can give a “soft” appearance; however, when developed, it gives the chest a firm appearance, creating a more defined look.

Function and biomechanics of the upper pectoral.

The upper pectoral plays a key role in movements involving:

Shoulder flexion, allowing the arm to be raised forward. (1,2)
Shoulder adduction and internal rotation of the arm, allowing it to cross the body's midline. (1,2)

Studies show that activation of the upper part of the pectoralis major varies depending on the type of movement and the direction of force. This area works more when we move the arm forward (flexion) or bring it toward the body (adduction) from certain angles, especially if we also rotate it inward (internal rotation). This shows us that each part of the pectoral can have specific functions within the same muscle. (3).

Best exercises for the upper chest

Key principles for training the upper chest.

The involvement of the upper chest during pressing exercises depends on several key biomechanical variables:

The bench angle, with greater activation between 44 and 56º compared with a flat bench (4).
Grip width: a narrower grip promotes upper-chest activation compared with a wider grip. It should not be excessively narrow either, otherwise much of the stimulus will be taken by the triceps instead of the chest (5).
Perform a full range of motion, as this generates greater muscle activation compared with incomplete or partial ranges (6). With some exceptions.
Include partial repetitions in the stretched position when it is not possible to complete the full range of motion. Recent studies (7) show that both partial repetitions in an elongated position and the full ROM induce similar increases in muscle mass in the upper chest.
Exercises with the greatest demands in the mid-range, as the upper chest's ability to apply force is greater at this point.
Use machines with adapted resistance profiles, as exercises that generate the greatest mechanical tension and localized fatigue tend to promote greater muscle hypertrophy (8).

In summary, the full range of motion appears to offer advantages in activation and maximal strength, while the partial range allows you to handle greater loads and can be useful for varying the stimulus, but both can be effective for hypertrophy if the stretching phase is emphasized (9).

To this we should add that, to maximize the involvement of the clavicular pectoral in pressing exercises, it is recommended to use inclined benches and narrower grips (10).

The 4 best exercises for the upper chest.

We know that everything we have discussed in the previous sections is all well and good, but what you really want to know is which exercises are best for developing your upper chest and maximizing results in that area once and for all.

The exercises main are those you should iInclude at the beginning of the session; their characteristic is that, being compound exercises, they use a greater amount of muscle mass, but they also generate much more fatigue. Recommended perform it for 5 to 8 repetitions.

Bench press inclined at 30ºcompared with other inclines, greater electromyographic activity has been observed in trained subjects (11). You can use barbells, dumbbells, or a Smith machine, although barbells or the Smith machine allow for greater load handling, potentially inducing greater overall activation (11) and consequently greater muscle mass gains.
Incline press on a converging machine: it has the advantage of providing constant tension, in addition to having the greatest demands in the middle of the movement. We should also add the extra stability it provides, allowing you to get closer to failure without compromising exercise technique, making it safer and more effective.
Parallel-bar dips: To properly activate the chest, you should lean your body slightly forward, but not excessively, because otherwise the anterior deltoid will take over the stimulus. You can use resistance bands if your strength levels are not yet high enough to move your body weight correctly.

On the other hand, we have isolation exercises, which are exercises that do not involve as many joints and allow you to stimulate the upper chest directly. They do not cause as much fatigue, so it is ideal for training it for 10 to 15 repetitions.

Low cable crossover: you can perform it seated on a bench or standing. The pulleys should be set at the bottom so that the cable follows an upward path, aligning it with the upper chest fibers. Keep your hands in a neutral or semi-supinated position for greater comfort.
Incline press with cables on a dual pulley; it is similar to a fly, but you will need a bench to provide greater stability and get the most out of it.

You need to perform a shoulder flexion-extension movement, so your elbows should be bent about 90º at the start of the movement. This protects the shoulder joint and reduces the involvement of other muscles, such as the biceps.

Best exercises for the upper chest

Conclusion.

Developing the upper chest is a challenge for many men seeking a full, aesthetically balanced chest. The clavicular region, which has not received much attention in traditional routines, is the key to achieving that rounded, elevated appearance.

To stimulate it correctly, it is essential to understand its anatomy and function, as it is primarily involved in shoulder flexion and adduction with internal rotation. This means considering key variables such as the bench angle, grip type, and range of motion during the exercises.

You should train with benches inclined between 30º and 56º, moderately narrow grips, and full ranges of motion (without ruling out partial reps in the stretched position).

Compound exercises such as the barbell, dumbbell, or machine incline press, and dips should make up the bulk of the workout. Supplementing them with isolation exercises such as low cable crossovers and the incline cable press allows for more localized stimulation, which promotes complete muscle development.

References

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