Side Plank form check
Film a set from your phone and FORMA counts the reps and tells you what went wrong on each one. It runs entirely on your device — the video never leaves your phone, and you do not need an account.
Check my side plankHow to film it
Film so your whole body is side-on across the frame — head to feet, propped on one forearm.
What it measures
- Body line — the angle the rep is counted from and the live readout on screen.
- Hip level — the second angle it watches for the faults that matter on this lift.
How a rep is counted
Side Plank is judged continuously rather than per rep — the checks run for as long as you hold the position.
Learn the movement first
The analyser tells you what went wrong on a rep. The guide tells you how the lift should look in the first place — muscles worked, setup, and the common mistakes.
Read the side plank guide