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Best Inner Chest Workout for a Sculpted Upper Body

Michael Garrico
Published by Michael Garrico | Co-Founder & Marketing Director
Last updated: July 29, 2023

The inner chest is among the most misunderstood upper-body muscles.

I’ve seen many people, especially fitness influencers, claim to isolate and build this muscle with specific exercises. But I’ve always been a bit skeptical about their claims.

So, I spent a week looking through some of the best chest workouts as well as revisiting the anatomy of the chest. So, I’ve handpicked some of the best game-changing inner chest exercises that have the potential to transform your physique.

Let’s dive right in.

Quick Summary

  • Exercises like the dumbbell fly, cable fly, dumbbell bench press, pullover, incline press, and decline press can help build your inner chest.
  • While isolating the inner chest muscles is impossible, you can still target them by working the entire chest.
  • You can optimize your chest workouts by performing exercises with a full range of motion and achieving muscle failure with your final reps.

Best Inner Chest Exercise Routine

A person doing best inner chest workout

Before we dive into how to do our inner chest exercises, let’s take a quick look at what your workout will look like.

Here’s the list of exercises you’ll need to perform with the number of sets and reps:

  • Dumbbell chest flys: 3 sets x 8–12 reps
  • Cable flys: 3 sets x 8–10 reps
  • Dumbbell bench press: 3 sets x 8–10 reps
  • Dumbbell pullovers: 3 sets x 10–12 reps
  • Incline press: 3 sets x 8–12 reps
  • Decline press: 3 sets x 8–12 reps

Finish off with regular or close-grip push-ups for AMRAP (as many reps as possible).

To make this a beginner inner chest workout, you can perform all the exercises for only two sets.

To make it an advanced inner chest workout, we recommend supersetting all exercises for three sets each, keeping the number of reps the same.

6 Best Inner Chest Exercises

A person doing dumbbell workouts for the inner chest

Based on my research and many years of observation, here are the six best inner chest exercises, what makes them effective, and how to do them with perfect form.

1. Dumbbell Chest Flys

Based on my observation, dumbbell chest flys are one of the best inner pec exercises, specifically because they help you exaggerate a pec flex at the top of the motion.

You can perform this exercise on the floor if you’re a beginner. As you get better with form, you can do it on a flat bench.

Here’s how to do it:

  1. Lie on a flat bench with a dumbbell in each hand.
  2. Hold the dumbbells above your chest with your palms facing each other, your arms extended, and your elbows slightly bent.
  3. Lower the dumbbells to the sides of your body in a wide arc and hold that slight bend in your elbows, squeezing your pec muscles through the motion.
  4. Pause when your arms are parallel to the ground.
  5. Slowly bring the dumbbells back to the starting position, making sure to keep your elbows slightly bent while emphasizing squeezing the chest at the top of the motion.
  6. Repeat for reps.

Safety note: Use a weight you can easily control and perform the exercise with proper form. Overextending your arms or using too much weight will increase your risk of injury to your shoulder joints.

Related: Best Dumbbell Chest Exercises Without Bench

2. Cable Flys

A person doing cable flys in the gym

Cable flys are the cable variation of dumbbell flys and one of the best beginner inner chest exercises.

This exercise emphasizes the squeezing motion of the chest and allows you to work different angles of the chest safely.

Here’s how you do them:

  1. Adjust the cable machine to your desired height and attach the handles to the cables.
  2. Stand with one foot in front of the other and grab the handles with an overhand grip.
  3. Take a step forward to create tension in the cables, and extend your arms in front of your body.
  4. Bring your arms out to the sides in a wide arc, slightly bending your elbows and squeezing your chest.
  5. Pause and squeeze your chest when your hands are in line with your shoulders.
  6. Bring your hands back together in front of your body slowly, maintaining the bend in your elbows.
  7. Repeat for the desired number of reps.

Keep your core engaged and your back straight throughout the exercise to prevent straining your lower back during the motion.

Related: Cable Rear Delt Fly 101 Guide

3. Dumbbell Bench Press

Some fitness influencers suggest doing the hammer squeeze press. But in my experience, the bench press is far better at recruiting your chest muscle fibers.

Here’s how you do this exercise:

  1. Lie flat on a bench with your feet planted firmly on the ground and a dumbbell in each hand.
  2. Bring the dumbbells close together, with your palms facing each other and your elbows bent at a 90-degree angle.
  3. Press the dumbbells upward, extending your arms and keeping them close to your body.
  4. Pause at the top of the movement, squeezing your pecs and making sure the dumbbells are directly above your chest.
  5. Slowly lower the dumbbells back down to the starting position, keeping them close to your body and maintaining the 90-degree bend in your elbows.
  6. Repeat for reps.

Related articles:

4. Dumbbell Pullovers

A person in the gym doing dumbbell pullovers

The dumbbell pullover is an excellent chest exercise that works your pecs in a different range of motion compared to other exercises on this list.

While they target your lats, EMG data shows that they target your pecs more [1].

Here’s how to do them with good form:

  1. Select a light-weight dumbbell (choosing something even moderately heavy could risk a shoulder injury).
  2. Lie down on a flat bench with your feet firmly planted on the ground, keeping your knees bent at a 90-degree angle and your head, shoulders, and upper back in contact with the bench.
  3. Hold the dumbbell with both hands, palms pressed together, and fingers interlocked.
  4. Start with the weight directly above your chest, arms fully extended but not locked.
  5. Slowly lower the dumbbell back behind your head while keeping your arms straight (allow your rib cage to expand as you stretch your chest muscles and ensure the movement comes from your shoulder joint and not your elbows).
  6. Engage your chest muscles, and reverse the motion by bringing the dumbbell back to the starting position above your chest.
  7. Repeat for reps.

You can also perform these with a weight plate instead of a dumbbell.

5. Incline Barbell Press

The incline barbell press is particularly effective in building your upper chest.

So, it can help you build the inner section of your upper chest, giving it a more defined look.

Here’s how to do it with good form:

  1. Set up an incline bench at a 30–45 degree angle (adjust the safety bars or have a spotter available).
  2. Lie on the bench with your feet flat and firmly pressed against the ground and your head higher than your hips.
  3. Grab the bar with an overhand grip, slightly wider than shoulder-width apart.
  4. Unrack the barbell and bring it down to your chest, keeping your elbows close to your body.
  5. Pause for a moment, and press the bar back up, extending your arms and squeezing your chest.
  6. Pause at the top of the movement, still squeezing your chest (make sure the bar is directly above your chest).
  7. Slowly lower the bar back down to your chest, keeping your elbows close to your body.
  8. Repeat for reps.

Safety note: Be careful when choosing a weight for the incline press because it’s more challenging than the bench press. So have a spotter ready in case you plan to go heavy.

6. Decline Barbell Press

A person doing decline barbell presses in the gym

The decline barbell press builds your lower chest.

When combined with the incline press, it helps build a balanced physique that emphasizes your upper and lower inner chest.

Here’s how to do a decline bench press with good form:

  1. Set up a decline bench at a 30–40 degree angle (adjust the safety bars or have a spotter available).
  2. Lie on the bench with your feet pressed firmly against the floor and your head lower than your hips.
  3. Grab the barbell with an overhand grip, slightly wider than shoulder-width apart.
  4. Unrack the barbell and bring it down to your chest, keeping your elbows close to your body.
  5. Pause for a moment, and press the bar back up, extending your arms and squeezing your chest.
  6. Pause at the top of the movement, still squeezing your chest (make sure the bar is directly above your chest).
  7. Slowly lower the bar back down to your chest, keeping your elbows close to your body.
  8. Repeat for reps.

Safety note: Compared to other bench presses, the decline barbell press puts you in a more awkward position to wiggle out if you’re in trouble. So always have a spotter if you plan to go heavy.

“Decline bench stations are typically the least popular of the free weight bench variations and it’s a great way to load your pecs on chest day.”

- Dr. Malik, MD, Fitness Expert

Is It Possible to Spot Target the Inner Chest?

No, it is not possible to target the inner chest.

Due to its anatomy, you can only target the upper and lower parts of your chest.

You can build the entire chest with a variety of exercises that can help build your inner chest along with other sections.

Anatomy of the Pectorals

A graphic of the anatomy of pectorals

The pectoral muscles consist of two groups: the pectoralis minor and the pectoralis major.

Here’s more information about what these muscles are and what they do:

  • Pectoralis major: The pectoralis major is a large chest muscle consisting of two parts: the clavicular head (upper section of the chest) and the sternal head (lower chest). This chest muscle helps with shoulder flexion, adduction, and rotation.
  • Pectoralis minor: This is a thin, triangular muscle that sits beneath the pectoralis major in the upper part of the chest. Its primary function is to move the scapula forward and backward.

Training Tips for Maximum Gains

Here are a few training tips that’ll help you make the most of your inner chest workouts:

  • Perfect form: An injury can set your progress back by months, so perform every rep with perfect form to avoid unnecessary muscle strain.
  • Full range of motion: Studies show that performing your exercises with a full range of motion is beneficial to building muscle mass [2].
  • Rep till failure: Research shows that working out till muscle failure is highly effective in building muscle hypertrophy [3].
  • Supplement your protein intake: To make the most of your recovery, supplement your high-protein diet with a quality protein shake.

FAQs

What Causes Gap in the Chest?

The lack of muscles above your sternum causes a gap in the chest. Having a gap over your chest is normal for most people.

Is Inner Chest Genetic?

Yes, the inner chest is genetic. The gap between your inner pecs depends on your genetics. Some are able to close this gap through exercise, while others may be genetically gifted with muscle mass that reduces the gap.

How Do I Close the Gap Between My Pecs?

You can close the gap between your pecs by doing hypertrophy-focused chest exercises. Since the width of the gap between your inner pec muscles is genetic, some may not be able to close it as much as others.

Build Your Inner Pecs by Training Smart on Chest Days

While spot-targeting your inner pecs isn’t possible, you can still build them by working your chest as a whole.

Increasing the size of your chest will give your mid-chest a fuller appearance, closing the gap between your pecs.

I also advise all my clients to supplement their peck growth efforts with a high-quality protein powder:

We’ve tested all these supplements here at TotalShape, and most clients report a noticeable change in post-workout recovery, so choose yours today to see how it can fast-track your fitness goals.


References:

  1. https://www.researchgate.net/publication/51695295_Effects_of_the_Pullover_Exercise_on_the_Pectoralis_Major_and_Latissimus_Dorsi_Muscles_as_Evaluated_by_EMG
  2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6977096/
  3. https://pubmed.ncbi.nlm.nih.gov/31895290/
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