Almost everyone thinks they can do a push up, and almost everyone does them badly. Hips sag, elbows flare out to the sides, the chest dips a few centimetres, and the neck cranes toward the floor. The result is a movement that looks like a push up but trains almost nothing. A real push up is a moving plank: a straight, braced line from head to heels that lowers under control until your chest nearly touches the floor and presses back up. Get that right and you have a chest, shoulder, triceps and core exercise that needs no equipment and travels anywhere.
The short version
- A push up is a moving plank. Your body stays a straight line from head to heels, braced the whole way, not a sagging or piking shape.
- Keep your elbows tucked to roughly 45 degrees from your body, not flared straight out to the sides. Flared elbows are the top cause of shoulder pain.
- Lower until your chest is a few centimetres from the floor, then press all the way up. Half reps build half the strength.
- A full push up asks your hands to support around two thirds of your body weight, so it is a genuine strength exercise, not a warm up.
- If full push ups are too hard, raise your hands on a bench or wall rather than dropping to your knees straight away. Incline push ups keep the full plank.
The plank is the whole exercise
Before you lower an inch, your body has to hold one shape: a straight, rigid line from the top of your head to your heels. Squeeze your glutes, brace your midsection as if you are about to be prodded in the stomach, and keep your ribs down so your lower back does not sag. That braced plank is not a detail on top of the push up. It is the push up. Everything else is just lowering and raising that plank.
Two failures break the plank. The first is sagging hips, where the middle drops toward the floor and the lower back takes the strain. The second is piking hips, where the backside pokes up in the air to shorten the range and make each rep easier. Both mean your core has quit and you are no longer training the movement you think you are. If you cannot hold a solid plank for twenty seconds, work on that first, because it sets the ceiling on your push up.
Lay an imaginary line from your head to your heels. In a good push up, a broomstick placed along your back would touch the back of your head, your upper back, and your backside at the same time, and stay touching them as you move. If it lifts off at the hips, you are sagging or piking.
Where your elbows go, and why it matters
Look down at yourself from above at the bottom of a push up. If your arms make a straight letter T with your body, elbows pointing out to the sides, you are in the position most likely to grind your shoulders over time. That flared position also puts your chest and triceps at a poor angle to press from, so it is weaker as well as harsher.
Instead, tuck your elbows so your upper arms sit at roughly a 45 degree angle to your torso, making more of an arrow shape than a T. Your hands sit about shoulder width or slightly wider, roughly under your chest rather than up by your face. From there your triceps and chest do the pressing from a strong, joint friendly position, and your shoulders are far happier for it.
Flaring the elbows straight out to the sides. It feels natural because it lets you cheat the range short, but it stresses the front of the shoulder and weakens the press. Tuck to 45 degrees and the whole movement feels stronger and safer, even though it is harder at first.
Full range: chest to the floor, arms locked at the top
The single most common way people fake push ups is cutting the range. They dip a few centimetres, bounce, and call it a rep. A real push up travels the full distance: down until your chest is a couple of centimetres off the floor, and back up until your elbows are straight, without letting the plank break at either end.
- Set your plank and grip. Hands about shoulder width or slightly wider, roughly under your chest. Body a straight braced line, glutes and midsection tight, neck neutral so you are looking at the floor a little ahead of you.
- Lower under control. Bend your elbows and lower your whole body as one rigid unit, elbows tucked to about 45 degrees. Take one to two seconds down. Your chest leads, your hips do not sag.
- Touch low, then press. Lower until your chest is a couple of centimetres from the floor, or lightly grazes it, keeping the plank. Do not rest your body on the ground and collapse the tension.
- Press all the way up. Push the floor away and drive back up until your elbows are straight and you are back in the top plank. Keep your body a straight line the entire time. That is one rep.
Training a muscle through its full range, especially the stretched bottom position, tends to build at least as much strength and size as short partial reps, and often more. For the push up, that means the bottom, chest near the floor, is not the scary part to avoid. It is the part that builds your chest and triceps. Full range honest reps beat a huge pile of shallow ones every time.
How much are you actually lifting?
People underrate the push up because it uses no weights, but the load is real. When researchers put people on force plates in a push up position, the hands supported a large share of body weight, more at the bottom of the movement than the top.
| Position | Roughly what your hands support | What it means |
|---|---|---|
| Top of a full push up | About 69 percent of body weight | Even the easy end is two thirds of you |
| Bottom of a full push up | About 75 percent of body weight | The hardest point, near the floor, loads you most |
| Top of a knee push up | About 54 percent of body weight | A real reduction, useful for building up |
| Bottom of a knee push up | About 62 percent of body weight | Still meaningful load, not a token version |
Those figures come from a study in the Journal of Strength and Conditioning Research that measured trained men in static push up positions. The exact numbers vary with your build and how far forward your hands sit, but the message is clear: a full push up is a genuine strength exercise, and even the knee version is far from nothing. Treat push ups with the same respect you give a barbell lift.
Making push ups easier or harder
The push up scales in both directions, which is why it stays useful whether you are starting out or already strong. The trick is to change the difficulty while keeping the plank and the full range intact.
To make them easier, raise your hands. Push against a wall, then a kitchen counter, then a bench, then the floor. The higher your hands, the less body weight you press, and crucially you keep the full straight body plank rather than dropping to your knees. Incline push ups are the cleanest way to build toward your first floor push up because they train the exact movement you are working toward. Knee push ups also work, but they change the body line, so use inclines first where you can.
To make them harder, do the reverse. Elevate your feet on a bench to shift more load onto your upper body. Slow the lowering phase down to three or four seconds. Add pauses at the bottom. Move your hands closer together to hit the triceps harder, or add a resistance band or a weight plate on your back once bodyweight becomes easy. There is no ceiling here that a bit of creativity cannot raise.
Before adding load, add clean full range reps. Getting from 5 to 20 strict push ups in a row is a bigger strength jump than most people expect, and it costs nothing. Track the number, keep the form honest, and the progression takes care of itself.
Questions people ask
How low should I go on a push up?
Why do my shoulders hurt when I do push ups?
Are knee push ups pointless?
How many push ups should I be able to do?
References
- Suprak DN, Dawes J, Stephenson MD. Journal of Strength and Conditioning Research. The effect of position on the percentage of body mass supported during traditional and modified push-up variants. 2011. doi.org/10.1519/JSC.0b013e3181bde2cf
- Wolf M, Androulakis-Korakakis P, Fisher J, Schoenfeld B, Steele J. International Journal of Strength and Conditioning. Partial vs full range of motion resistance training: A systematic review and meta-analysis. 2023. doi.org/10.47206/ijsc.v3i1.182
- American College of Sports Medicine. Medicine and Science in Sports and Exercise. American College of Sports Medicine position stand. Progression models in resistance training for healthy adults. 2009. doi.org/10.1249/MSS.0b013e3181915670
Last reviewed 18 July 2026. We check health-condition articles against current guidelines and update the date above when we do.
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