The five push-up form mistakes that stall your progress

A push-up is the most-performed and least-examined exercise in bodyweight training. Everyone assumes they know it, most people learned it from a gym teacher two decades ago, and almost nobody has watched their own set back. The result is a movement people do thousands of times with an error baked in from rep one.

Here are the five errors that actually cost you progress — in the order they tend to appear as a set fatigues — plus what each one looks like on video and what to do about it.

1. Elbows flaring to 90 degrees

The classic. Viewed from above, the upper arms form a T with the torso instead of an arrow. It feels stronger because it shortens the range of motion slightly and recruits more chest at the expense of everything else, and it puts the shoulder into internal rotation under load — the position most associated with anterior shoulder pain in pressing.

The fix: aim for roughly 45 degrees between upper arm and ribcage at the bottom. A useful cue is to imagine screwing your hands into the floor, thumbs rotating outward — the elbows tuck on their own without you thinking about elbows at all.

2. Hips sagging (or piking) as the set goes on

A push-up is a moving plank. If the hips drop, the lumbar spine takes load it was never meant to take and the abs stop contributing. If the hips pike upward, you have quietly converted the movement into a partial-range shoulder press.

Both usually appear in the last third of a set, which is exactly why self-assessment fails: the first five reps that you can feel are fine, and the last three that you can’t are the ones that break. Filming from the side is the only reliable way to see the moment the line goes.

3. Stopping short at the bottom

Partial reps are the most self-deceiving error on the list, because the rep count is unchanged. Twenty half push-ups feel like twenty push-ups in the moment and are worth substantially less in adaptation — the stretched position under load is where most of the hypertrophy and most of the strength carryover comes from.

The standard: chest to within a fist of the floor, elbows at or below roughly 90 degrees of flexion. If you cannot hit that for your target rep count, elevate your hands and hit it there. A full-range incline push-up beats a partial floor push-up in every way that matters.

4. Craning the neck

Chin reaching for the floor while the chest stays high. It inflates your perceived depth by several centimetres and trains a forward-head position you probably already get enough of from a screen.

The fix is boring and effective: pick a spot on the floor about thirty centimetres ahead of your hands and keep your eyes there for the whole set. The head follows the gaze, and the neck stays in line with the spine.

5. No tempo at all

Bouncing off the bottom uses the stretch reflex and elastic recoil of the tissue to skip the hardest part of the rep. It looks impressive and builds very little.

A defensible baseline: two seconds down, a brief pause at the bottom where nothing is moving, then push. If your rep count collapses when you add the pause, the pause is telling you something true about the reps you were doing before.

How to actually check your own push-ups

1. Set your phone on the floor about two metres to your side, propped against something, camera at roughly hip height.
2. Film a full working set to near failure — errors appear under fatigue, so a fresh set of five proves nothing.
3. Watch it at half speed. Check the shoulder-hip-ankle line first, then depth, then elbow angle.
4. Compare the first rep with the last. The delta between them is your real technical ceiling.
5. Change one thing. Refilm next session. Anything more than one variable at a time and you will not know what worked.

This works, and almost nobody keeps doing it, because scrubbing through footage rep by rep is tedious enough that it lasts about two sessions.

Where CaliVision fits

CaliVision automates exactly that review loop. You film the set the same way, and the app measures the elbow angle at the bottom of every rep, tracks the shoulder-hip-ankle line through the whole movement, times your descent, and flags the specific reps where any of it broke down. It runs entirely on your phone — the video is never uploaded anywhere.

It won’t write your programme or tell you how many sets to do. It tells you which reps were real.