The three most common chest exercises get argued about endlessly. Here is what the studies behind this site’s exercise pages actually found, how sure we can be about each finding, and where the evidence simply runs out. The short version: for building muscle, the choice matters much less than how hard and how often you train. The differences are real, but they are about load, stability and comfort.
Load: the barbell wins, by about a sixth
In a study of trained men, the heaviest dumbbell press anyone could do (their one-rep max) was about 17% lower than their barbell bench press, and about 14% lower than a Smith machine press [1]. That fits the mechanics: with a barbell both hands share one rigid bar, so neither arm has to balance its own load.
A standard push-up is not light either. It supports about 69% of your body mass at the top and about 75% at the bottom [2]. For an 80 kg (176 lb) lifter that is about 55 kg (121 lb) at the top and 60 kg (132 lb) at the bottom. The catch is that you can’t add a plate: you progress by changing the angle, adding a vest or band, or moving to harder variations.
How sure are we? Moderate. The 17% figure comes from one study of trained men, and the push-up percentages from one study, reported here via a secondary source.
Muscle activity: closer than you’d think
The same study measured muscle activity with electromyography (EMG, electrodes on the skin over the muscle). Chest and front-shoulder activity was similar across the barbell, dumbbell and Smith machine presses, while biceps activity rose as the press became less stable [1]. In other words, the dumbbells asked more of the stabilising muscles, not of the chest.
Bench angle changes the picture more than equipment does. In 30 trained adults pressing at 60% of their maximum, upper-chest activity peaked at a 30° incline, middle and lower chest activity was highest on the flat bench, and front-shoulder activity climbed with steeper inclines [7].
A caution that applies to every EMG finding: higher measured activity is not the same as more growth. EMG tells you how a movement loads a muscle in the moment. Only training studies tell you what happens over weeks.
Strength and growth: push-ups hold their own
Two training studies compared push-ups directly with the bench press. In one, 30 trained participants either bench pressed at their six-rep maximum or did push-ups loaded with elastic bands to match the bench press’s muscle activity. After five weeks, gains in one-rep and six-rep bench strength were similar [3]. In the other, 18 young men trained twice a week for eight weeks with either a bench press at 40% of their maximum or push-ups matched to that load. Both groups gained about 5 kg on the bench press and similar thickness in the chest and triceps [4].
That lines up with the broader evidence on how muscles grow. Across many studies, growth was similar with light and heavy loads as long as sets were taken to or near failure, while maximal strength favoured heavier loads [5]. And more weekly hard sets went with more growth, in a graded way [6].
How sure are we? Moderate for the push-up studies (small samples, short durations, young or trained participants). Moderate to high for the general load and volume findings, which come from meta-analyses pooling many exercises.
Shoulders: the evidence is about loads, not injuries
This is where opinions run furthest ahead of data. The best study we found used computer modelling of ten experienced lifters pressing a light 16 kg bar. Grips narrower than 1.5 times shoulder width reduced compression at the AC joint; very wide grips (twice shoulder width) increased compression and shear at the shoulder joint and the work of the rotator cuff; and pulling the shoulder blades back reduced several of those loads [8]. Clinical guidance for people with irritable shoulders points the same way: narrow the grip and limit how deep you lower [9].
What none of this shows is injury rates. Nobody has run a trial comparing how often people get hurt with elbows at 45° versus 90°, or with dumbbells versus a barbell. So the advice on this site, to keep your upper arm about 45–70° from your torso and use a grip around 1.5 times shoulder width, is a sensible default with low to moderate certainty, not a guarantee.
Dumbbells and push-ups do have one practical advantage: your hands can rotate and your arms can choose their own path, which many lifters find more comfortable. That is a mechanical argument rather than a measured one.
Range of motion: go all the way down
In trained men, bench pressing through the full range for ten weeks built more strength than pressing through two-thirds or one-third of the range [10]. The study measured strength, not growth, and used a barbell. Still, it is a good reason to lower the bar to your chest, the dumbbells to chest level, and your chest to a fist’s height from the floor in a push-up.
What about cables?
Research on the lying cable chest press, the version on this site, is scarce. The closest study tested a standing single-arm cable press, where whole-body balance limited the heaviest press to about a third of body weight and chest activity was lower than in a bench press [11]. Lying on a bench removes most of that balance problem, so the lying press probably behaves more like a dumbbell press with tension kept at the top. That is an inference from mechanics; it hasn’t been tested.
So which should you do?
- For maximal strength or powerlifting: the barbell bench press, because it takes the heaviest loads and strength is specific to what you train.
- For muscle growth: whichever you can train hard and progressively without joint complaints. The dumbbell bench press is a good default; push-ups work too if you keep making them harder.
- For home training or as a beginner: the push-up and its progressions.
- If your shoulders object: try dumbbells with a neutral grip or the cable chest press, keep your elbows in, stop at a comfortable depth, and see a physiotherapist if the pain stays.
The flat chest press comparison puts all four side by side, and every exercise page has a 3D demo you can watch from any angle on six body types.
Where the evidence runs out
- Whether flat variations grow different regions of the chest differently: insufficient evidence.
- Shoulder outcomes for neutral versus palms-forward dumbbell grips: we found no direct comparison.
- Injury rates for any of these presses by technique: not studied in trials.
We will update this article as better studies appear. If you know of one we have missed, tell us.
Sources
- Saeterbakken AH, van den Tillaar R, Fimland MS. A comparison of muscle activity and 1-RM strength of three chest-press exercises with different stability requirements. J Sports Sci. 2011;29(5):533–538. Cristin recordVerified · checked 22 Oct 2026
- Suprak DN, Dawes J, Stephenson MD. The effect of position on the percentage of body mass supported during traditional and modified push-up variants. J Strength Cond Res. 2011;25(2):497–503. PubMed 20179649Finding checked via a secondary source · checked 22 Oct 2026
- Calatayud J, Borreani S, Colado JC, Martin F, Tella V, Andersen LL. Bench press and push-up at comparable levels of muscle activity results in similar strength gains. J Strength Cond Res. 2015;29(1):246–253. doi:10.1519/JSC.0000000000000589Verified · checked 22 Oct 2026
- Kikuchi N, Nakazato K. Low-load bench press and push-up induce similar muscle hypertrophy and strength gain. J Exerc Sci Fit. 2017;15(1):37–42. DOAJ recordVerified · checked 22 Oct 2026
- Schoenfeld BJ, Grgic J, Ogborn D, Krieger JW. Strength and hypertrophy adaptations between low- vs. high-load resistance training: a systematic review and meta-analysis. J Strength Cond Res. 2017;31(12):3508–3523. PubMed 28834797Verified · checked 22 Oct 2026
- Schoenfeld BJ, Ogborn D, Krieger JW. Dose-response relationship between weekly resistance training volume and increases in muscle mass: a systematic review and meta-analysis. J Sports Sci. 2017;35(11):1073–1082. Verified · checked 22 Oct 2026
- Rodríguez-Ridao D, Antequera-Vique JA, Martín-Fuentes I, Muyor JM. Effect of five bench inclinations on the electromyographic activity of the pectoralis major, anterior deltoid, and triceps brachii during the bench press exercise. Int J Environ Res Public Health. 2020;17(19):7339. doi:10.3390/ijerph17197339Verified · checked 22 Oct 2026
- Noteboom L, Belli I, Hoozemans MJM, Seth A, Veeger HEJ, van der Helm FCT. Effects of bench press technique variations on musculoskeletal shoulder loads and potential injury risk. Front Physiol. 2024;15:1393235. doi:10.3389/fphys.2024.1393235Verified · checked 22 Oct 2026
- Fees M, Decker T, Snyder-Mackler L, Axe MJ. Upper extremity weight-training modifications for the injured athlete: a clinical perspective. Am J Sports Med. 1998;26(5):732–742. PubMed 9784824Verified · checked 22 Oct 2026
- Martínez-Cava A, Hernández-Belmonte A, Courel-Ibáñez J, Morán-Navarro R, González-Badillo JJ, Pallarés JG. Bench press at full range of motion produces greater neuromuscular adaptations than partial executions after prolonged resistance training. J Strength Cond Res. 2022;36(1):10–15. doi:10.1519/JSC.0000000000003391Verified · checked 22 Oct 2026
- Santana JC, Vera-Garcia FJ, McGill SM. A kinetic and electromyographic comparison of the standing cable press and bench press. J Strength Cond Res. 2007;21(4):1271–1279. PDFVerified · checked 22 Oct 2026