Form FighterGuide
Jab technique checks you can see on camera
A useful jab review on video focuses on a straight outbound path, a fast return to the cheek, and a high rear hand — not punch power. Solo, it is easy to push the jab or leave it hanging. Form Fighter can watch a jab with standard 2D live practice and grade a clear side-on upload. Enhanced movement review may also apply when a supported session is eligible. The checklist below is instruction, not an automated score.
What this strike is
The jab is the straight lead-hand punch. Visible recovery and path matter more for solo film review than “power.” A push-jab stalls at extension; a snap-jab comes home.
A jab that pushes becomes a telegraph on camera: the hand stalls out front, the chin lifts, or the rear hand drifts. Solo training hides those leaks because the shot still “feels busy.”
Film a few isolated jabs before you judge a whole round. One repeating leak is enough to train.
How to film for a useful read
- Slight ~45° angle so the lead hand is not hidden behind the body
- Head and both feet in frame through extension and return
- Short sets of clear jabs — not a blurry free round
Visible-motion checklist
- Lead hand fires and returns on a straight screen-plane path
- Chin stays tucked; rear hand stays near the face
- Shoulder contributes without lunging the whole torso out of frame
- Recovery is as prompt as the outbound snap
Common mistakes
- Pushing instead of snapping — the punch stalls at full extension
- Hitchhiking: thumb up or a soft wrist on the way out
- Rear hand drifting off the cheek while the jab is out
- Lifting the chin to “see” the shot
Ten jabs, home before next
Throw 10 easy jabs. The lead hand must return to the cheek before the next jab starts. Rear hand stays high.
Visible success criterion: On film, the hand does not hang at full extension between reps.
What a phone camera can show
- Whether the lead hand travels and returns on a straight path
- Whether the rear hand stays near the face
- Whether the torso lunges or the chin lifts, if they are in frame
What it cannot tell you
- How hard the jab would land on a pad or bag
- Weight shift through the floor
- Whether an opponent would parry it
Safety and limits
This is a training checklist, not medical advice. Warm up the shoulder, keep space clear, and stop if something hurts.
Form Fighter’s role
Live camera practice can watch the jab with standard 2D pose feedback and drill one leak hands-free. Upload 2D can grade a clear jab. Enhanced movement review may apply on eligible supported sessions. These notes are not a product score.
Can Form Fighter analyze my jab from an uploaded round?
Yes, for a clear side-on clip: jab receives standard 2D camera feedback. Enhanced movement review may also run when that session is eligible. Live practice can watch the jab in 2D.
Does a clean checklist mean the app scored my jab?
No. The checklist is how to throw the shot. Form Fighter’s live or upload result is separate, and a phone camera cannot measure force.
Last updated 2026-08-21.
Related: Boxing drills at home · Shadowboxing feedback with a phone · What a phone camera cannot measure · Camera setup
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