The most effective way to train the serratus anterior is through exercises that involve pushing your shoulder blades apart (protraction) and reaching overhead (upward rotation). This fan-shaped muscle runs along your ribcage and attaches to your shoulder blade, and it responds best to movements that emphasize that final “push” beyond a normal pressing motion. A handful of exercises consistently produce strong activation, and progressing through them from beginner to advanced will build both the strength and the control this muscle needs to do its job.
What the Serratus Anterior Actually Does
The serratus anterior wraps from the front of your ribcage (originating on ribs one through eight or nine) around to the inner border of your shoulder blade. It has three distinct sections that work together. The upper fibers act as a pivot point, the middle fibers pull the shoulder blade forward along the ribcage, and the lower fibers rotate the shoulder blade upward so you can lift your arm overhead.
This muscle is sometimes called the “boxer’s muscle” because it drives the protraction you see at the end of a punch, where the shoulder blade slides forward around the rib cage. But its role in upward rotation matters just as much. Every time you reach overhead, the serratus anterior teams up with the upper and lower trapezius to tilt your shoulder blade into the right position. Without that rotation, your shoulder joint doesn’t have the clearance it needs, and the soft tissues in the space beneath your shoulder bone can get compressed. Keeping the serratus anterior strong is one of the most practical things you can do for long-term shoulder health.
How to Tell If Yours Is Weak
The clearest sign of serratus anterior weakness is scapular winging, where the inner edge of your shoulder blade lifts away from your ribcage instead of sitting flat. You can test this yourself: get into a push-up position and slowly lower yourself, then push back up. Watch (or have someone watch) whether your shoulder blade pokes out during the movement. Winging might show up immediately or only after several reps as the muscle fatigues.
Other signs are subtler. If you struggle to raise your arm above roughly 120 degrees of forward flexion, or if overhead pressing feels unstable or pinchy, weak serratus anterior function could be contributing. The muscle is controlled by a single nerve (the long thoracic nerve), so when it’s truly impaired the effects are dramatic. But for most people in the gym, the issue is garden-variety weakness and poor motor control rather than nerve damage.
The Best Exercises, Ranked by Purpose
Serratus Punch
This is the single best isolation exercise for the serratus anterior. Lie on your back holding a light dumbbell or weight plate with one arm extended straight toward the ceiling. Without bending your elbow, punch the weight upward by pushing your shoulder blade off the floor. You’ll only move an inch or two. That small range of motion is the entire point: it’s pure protraction with minimal involvement from other muscles. Research comparing protraction exercises found that the serratus punch produced significantly higher serratus anterior activation than pectoralis minor activation, making it the best choice when you want to isolate this muscle specifically.
Push-Up Plus
Start in a standard push-up position with arms straight. Let your torso sag slightly as your shoulder blades pinch together, then push your upper back toward the ceiling, spreading your shoulder blades as far apart as possible. That extra “plus” at the top is what targets the serratus anterior. The push-up plus consistently produces activation above 20% of maximum voluntary contraction, which is the threshold researchers use to identify effective rehabilitation exercises. If full push-up position is too demanding, a knee push-up plus produces comparable serratus activation.
One thing to know: the standard push-up plus and the wall-modified version activate the pectoralis minor to a similar degree as the serratus anterior. That’s fine for general training, but if you’re specifically trying to wake up a lazy serratus without reinforcing an already-dominant pec minor, the serratus punch is the better pick.
Wall Slides
Stand facing a wall with your forearms flat against it, elbows at about 90 degrees of shoulder height. Slide your arms upward along the wall while keeping contact, pressing gently into the surface the entire time. Wall slides are uniquely valuable because they train the serratus anterior at and above 90 degrees of arm elevation. Most protraction exercises like the push-up plus work the muscle near 90 degrees but not in the higher ranges where people typically experience shoulder pain. Research published in the Journal of Orthopaedic & Sports Physical Therapy confirmed that serratus anterior activity increases progressively as the arm moves higher during wall slides, making them an excellent bridge to full overhead function.
Dynamic Hug
Hold a pair of light dumbbells or a cable handle in each hand with your arms extended in front of you at chest height, elbows slightly bent. Sweep your arms forward and inward as if you’re wrapping them around a large tree trunk. This combines horizontal adduction with protraction. Along with the serratus punch and push-up plus, the dynamic hug is one of the exercises that consistently clears the 20% activation threshold in EMG studies.
Scaption
Hold a light dumbbell in each hand and raise your arms in the scapular plane, roughly 30 to 45 degrees in front of your body, with thumbs pointing up. This is essentially a front raise angled slightly outward. It trains the serratus anterior through its upward-rotation role rather than protraction, which makes it a good complement to the punching and pushing exercises above.
Loaded Progressions for Strength
Once the basic exercises feel easy and controlled, you need to add resistance to keep building strength. The landmine press is one of the best options. Wedge one end of a barbell into a corner or landmine attachment, grip the other end at shoulder height, and press it up and forward. The angled bar path forces your shoulder blade to protract and upward-rotate simultaneously while your core works to resist rotation. The serratus anterior, deltoids, and trunk stabilizers all have to coordinate through the full range.
You can scale the landmine press by performing it from a half-kneeling position to reduce the load, or by adding a resistance band around the bar for accommodating resistance at the top. Overhead pressing variations, particularly with dumbbells where each shoulder blade moves independently, also load the serratus anterior effectively once you have the baseline control to keep your scapula moving well.
Sets, Reps, and Frequency
For the isolation exercises (serratus punch, push-up plus, wall slides), 2 to 3 sets of 10 to 15 reps works well. The goal is controlled, high-quality repetitions where you feel the muscle working around your ribcage, not speed or fatigue. Use light loads. If you’re using the serratus punch with a dumbbell, 5 to 15 pounds is plenty for most people. The push-up plus and wall slides use body weight and wall friction, so focus on slow, deliberate movement.
Training the serratus anterior 2 to 3 times per week is a reasonable frequency. You can slot these exercises into a warm-up before pressing or overhead work, or include them as accessory movements at the end of an upper-body session. They don’t require much recovery because the loads are light, so higher frequency is fine. For loaded progressions like the landmine press, treat them like any other pressing exercise: 3 to 4 sets of 6 to 12 reps, progressing weight over time.
Common Mistakes to Avoid
The biggest error is not going far enough into protraction. During the push-up plus, many people do a normal push-up and stop. The serratus anterior only kicks in hard during that extra push at the very top, when you round your upper back and spread the shoulder blades wide. If you’re not feeling anything along the side of your ribcage, you’re probably cutting the range short.
The second mistake is going too heavy too soon on punching movements. The serratus anterior is a stabilizer first. Loading it with a 45-pound dumbbell before you can control a 10-pound plate just shifts the work to your pec minor and front deltoid. Start light, build the connection, then add load. The third common issue is neglecting the overhead component entirely. If all your serratus work stays at or below shoulder height, you’re missing the upward-rotation function that matters most for healthy overhead movement. Include wall slides or scaption to train the muscle through its full range of responsibility.