Soma’s Framework For Tracking Mental Fatigue
You can’t train what you can’t track.
The Monitoring Stack is how you see it coming.
Fatigue. Thresholds. Decline.
This isn’t guesswork — it’s data-backed warfare against performance loss.
Two tools power the Monitoring Stack:
PVT-B and PFTT — each built to measure a different threat.
PVT-B
Mental Fatigue. Exposed.
The PVT-B is designed to detect the earliest signs of cognitive decline — drops in focus, speed, and consistency — before your athletes even feel them.
Use it pre- and post-session, or across an entire week, to track subtle wear and tear on the brain.
Why It Matters
Mental fatigue doesn’t shout.
It whispers — through slower reaction times, creeping variation, and silent lapses.
PVT-B is how you hear it early.
In Practice
📍 Start of Session – Fresh & Focused
• Reaction Time: 356ms
• Accuracy: 100%
• Variation: 13%
• Lapses: 1
📍 End of Session – Mentally Fatigued
• Reaction Time: 372ms
• Accuracy: 100%
• Variation: 20%
• Lapses: 4
Track it over time and you’ll see the drift.
If baseline scores start climbing week after week, it’s no longer a dip — it’s a warning.
Recovery is no longer optional.
PFTT
The Threshold Between Precision And Collapse
The PFTT doesn’t just measure fatigue.
It finds the edge of it.
As physical effort rises, cognitive sharpness climbs—until it doesn’t.
PFTT pinpoints the exact moment performance flips.
That’s the threshold.
Cross it, and reaction time slows.
Accuracy crumbles.
HRV nosedives.
This is where physical performance hides a cognitive collapse.
Why It Matters
Most coaches track the body.
PFTT tracks the brain.
It shows you the exact moment your athlete shifts from high-functioning to high-risk.
Whether you hold them at peak — or push them past it — becomes a deliberate choice, not a guess.
In Practice
📍 Start – Solid Performance
• RT: 331ms
• Accuracy: 96%
• Variation: 15%
• HRV: 100.70
📍 Peak Cognitive Zone
• RT: 310ms
• Accuracy: 96%
• Variation: 14%
• HRV: 104.61
📍 Threshold Crossed
• RT: 348ms
• Accuracy: 84%
• Variation: 22%
• HRV: 67.75
Performance didn’t just dip.
The brain broke first.
Why The Monitoring Stack Matters
You’re not just testing for fatigue.
You’re mapping it.
Tracking it.
Weaponizing it.
Because mental failure doesn’t announce itself — until the moment it costs you everything.
This is where Soma separates from everyone else.
Not just training. Tracking.
Not just data. Decisions.