kinevi
Kinematic Chain Efficiency

4772500
The Chain Multiplies.

Your pelvis rotates at 477°/s. Through proper kinematic sequencing, the club reaches 2,500°/s — a 5× multiplication. You don't need to swing harder. You need to chain better.

Unlock Your Multiplier See the Cascade
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VELOCITY CASCADE

Each segment amplifies the last.

Proper deceleration of each proximal segment transfers and multiplies energy to the next distal segment. This is biomechanical leverage — not muscle power.

Pelvis
477°/s
Base
Thorax
552°/s
×1.15
Shoulder
870°/s
×1.58
Arm
1,200°/s
×1.38
Club
2,500°/s
×2.08
Total multiplication: 5.24×

CHAIN BREAKS

Where your multiplier dies.

Every chain break costs you distance. The multiplier effect reverses — turning 5× into 2× or less.

Early Release

Arms fire before thorax decelerates. Energy skips the shoulder amplifier.

Multiplier loss −40%
🔄

Sequence Reversal

Shoulders fire before hips. The proximal-to-distal order breaks completely.

Multiplier loss −60%
📉

Failed Deceleration

Segment doesn't slow down after peaking. Energy stays trapped, never transfers downstream.

Multiplier loss −35%

EMG ACTIVATION

Muscles decide the multiplier.

The right velocity sequence requires the right muscle firing order. EMG reveals whether your core drives the chain — or your arms steal it.

Core-Driven Chain ✓

1
Obliques (Core) 0ms
2
Glutes (Hip) +40ms
3
Lats (Shoulder) +80ms
4
Forearm (Wrist) +130ms
Chain multiplier: 5.2×

Arm-Dominant Chain ✗

1
Forearm (Wrist) 0ms ⚠
2
Obliques (Core) +20ms ⚠
3
Glutes (Hip) +30ms
4
Lats (Shoulder) +50ms
Chain multiplier: 2.1×

Both swings can look identical on camera. Only EMG reveals the muscle truth behind the multiplier.

Stop swinging harder.

Start chaining better.

Measure your kinematic multiplier with IMU + EMG sensors. Discover where your chain breaks — and unlock the distance you already have.

No credit card required · 4 IMU + 4 EMG sensors · Ships Q3 2026