01 · Position
Alignment
Freeze the fault.

Capture the rep, reveal the movement phases, route the cue through HERO, and keep the gear attached only when it makes the next attempt better.
Place reference beside repetition so the athlete sees the change, not a slogan.
Start with the clip. Let size, force, and reference sharpen one honest correction.
Body profile
Movement read
Size-force context
Gear setup
Kit + tools
Only what helps
Skill survives when repetition has proof, rhythm, and a cue the athlete can feel.
Tools sit with body, plan, and venue because objects matter when they help the work.
01 · Position
Freeze the fault.
02 · Velocity
Find the fastest frame.
03 · Acceleration
See force turn on.
04 · Bounce
Show the rebound.
PK
loop∞
Proof
PK gives loop∞ a source of authority athletes and coaches can feel: championship standards, plain language, and earned judgment.
Coach brain
Source material turns into cues, red flags, progressions, and session adjustments instead of generic wellness advice.
Multisport
The same force adapts to sprint, jump, rotate, brace, recover, return to play, and repeat across the sports dropdown.
Next action
loop∞ carries trust, athlete context, proof, and the next useful action without taking the coach out of the decision.
FAQ
Use ECHO to stack the movement proof, send the HERO response, and keep gear tied to the work instead of floating as a recommendation.