How to check your pull-up form (without a coach)

Pull-ups are where self-reported numbers drift furthest from reality. Nobody sets out to shorten their reps — it happens gradually, under fatigue, and the count keeps going up, which feels like progress. Six months later the number is higher and the pull-up is worse.

You do not need a coach to catch this. You need a camera, a consistent setup, and four checkpoints you apply the same way every time.

The setup: film it the same way every time

Consistency matters more than production value. If the angle changes between sessions you are comparing two different measurements and any conclusion you draw is noise.

• Side-on, not front-on. The front view hides everything about your range of motion and your body line.
• Roughly two metres away, camera at about chest height when you are hanging.
• The bar, your hands and your feet all in frame — a clip that crops your feet cannot show leg drive.
• Light in front of you, not behind. Backlighting turns you into a silhouette and makes joints impossible to see.
• Film the whole set, including the reps that fall apart. Those are the informative ones.

Checkpoint 1: does each rep start from a dead hang?

Full lockout at the bottom — elbows straight, shoulders taking the load, a genuine pause rather than a bounce out of the bottom. This is the checkpoint that quietly disappears first, and it is the one that matters most: the bottom quarter of a pull-up is where the lats are at their longest and where the strength you are trying to build actually lives.

On video, look at the elbow at the lowest point of each rep. If it never straightens, you are doing a rep-and-a-half range and calling it a pull-up.

Checkpoint 2: does the chin clear the bar — cleanly?

Chin over the bar, not chin level with the bar, and not chin over the bar because the head tilted back at the last moment. Craning at the top is the pull-up equivalent of the push-up neck crane: it buys three centimetres that your back did not earn.

Checkpoint 3: how much of this is the legs?

Kipping has its place in a sport that scores it. In a strength context, leg drive is a way of moving load off the muscles you are trying to train. A small amount creeps in involuntarily near failure; the question is whether it is the last rep or the third.

On video, watch the knees and the hip angle. In a strict rep they barely change. Any pronounced swing of the legs forward followed by an extension means the rep started somewhere other than your back.

A useful diagnostic: cross your ankles and squeeze them together for a whole set. If your rep count drops by a third, you have your answer.

Checkpoint 4: is the descent controlled?

Dropping from the top is the fastest way to accumulate elbow tendon irritation in calisthenics, and it throws away the eccentric — the portion of the rep with the most adaptive value per unit of effort.

Aim for a descent of about two seconds that ends in a controlled dead hang rather than a jolt. If the last rep of your set is a drop rather than a lower, the set ended one rep earlier than you recorded.

Scoring your own set

Go through the clip once per checkpoint rather than trying to watch all four at once. Mark each rep pass or fail. Then take the honest number: reps that passed all four checkpoints. That is your working pull-up count, and it is the number to progress from.

Most people find their honest count is between 60% and 80% of what they were writing down. That is not a failure — it is the first accurate measurement they have taken, and everything built on it will be better.

Doing this without the tedium

CaliVision runs those checkpoints automatically. It tracks the elbow angle at the bottom of every rep, the height of the chin relative to the bar at the top, hip and knee movement through the rep, and how long the descent took — then marks the individual reps that failed and shows you the frame where it happened. Everything is measured on your phone; the clip is never uploaded.

The app reports "6 of 8 clean" rather than "8 reps", which is the number worth training against.