kinevi
Energy Transfer · Kinematic Chain

Power doesn't come
from your arms.
It flows through you.

The golf swing is an energy cascade — ground to club in 250ms. Our 8 sensors measure every link in that chain.

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THE PHYSICS OF POWER

Energy multiplies as it moves up the chain.

Professional golfers achieve 1.5× velocity multiplication at each body segment. The ground generates 100% — by the time it reaches the club, that energy has been amplified to 2,500°/s.

477°/s

Pelvis

552°/s

Thorax

1,200°/s

Arms

2,500°/s

Club

WHERE ENERGY LEAKS

Break the chain, lose the power.

When your kinematic sequence is off by even 20ms, energy leaks between segments instead of transferring. Most golfers lose 15-25% of potential clubhead speed this way.

❌ Broken Chain

  • Arms fire before core
  • >60ms gap between segments
  • Energy dissipates at each transition
  • Clubhead speed: 85-95 mph

✓ Connected Chain

  • Sequential activation: ground → club
  • 20-30ms optimal gap between segments
  • Energy amplifies at each stage
  • Clubhead speed: 105-115 mph

HOW WE MEASURE ENERGY FLOW

Three modalities. One complete picture.

No single sensor can capture the full energy story. We fuse IMU, EMG, and Vision to trace power from muscle activation to club release.

4× IMU Sensors

1666Hz sampling captures angular velocity at pelvis, torso, forearm, and hand. ±0.6ms precision.

MEASURES: Speed & Timing

💪

4× EMG Sensors

1000Hz muscle activation reading on quads, glutes, obliques, and lats. Detects compensation patterns.

MEASURES: Force Origin

📷

AI Vision

MediaPipe 33-point skeleton tracks full-body posture. X-Factor, rotation angles, alignment — all in real time.

MEASURES: Posture & Form

THE CRITICAL WINDOW

50 milliseconds determine everything.

The transition — where your pelvis starts rotating forward while your shoulders still coil back — is where energy storage peaks. This 50-100ms window creates the X-Factor Stretch that separates pros from amateurs.

30-50ms

Pelvis leads shoulders

+15%

X-Factor Stretch increase

+7 mph

Clubhead speed gain

Our IMU sensors detect this timing gap with ±0.6ms precision. Cameras at 30fps can't even see it.

PERSONALIZED ENERGY MAP

See exactly where your
power leaks.

AI analyzes your kinematic sequence against professional benchmarks and pinpoints the exact segment where energy transfer breaks down — with muscle-level precision.

Sample Diagnosis

Ground → Hips ✓ Optimal (22ms gap)
Hips → Core ⚠ Slow (68ms gap)
Core → Arms ✗ Reversed (-15ms)
Arms → Club ✓ Good (28ms gap)

AI Insight: "Your core activates at only 32% — arms are compensating. Focus on oblique engagement during transition to restore the chain."

Stop swinging harder.

Start flowing smarter.

Join the waitlist. Be the first to map your energy transfer chain and unlock speed you didn't know you had.

Get Early Access

No credit card required · Limited spots · Sensors ship Q3 2026