System Overview · v1.0

PGIS
Performance Glycemic
Intelligence System

A physician-engineer framework integrating CGM data, endurance training, recovery biomarkers, and AI-assisted pattern analysis.

Never compromise a high-leverage day in life for a low-leverage workout.
Training supports life. Data drives the decision.
Data Inputs
Wearable
Garmin Metrics
  • HRV (recovery proxy)
  • Body Battery score
  • Training Readiness
  • VO2 max trend
  • Sleep staging
📈
Metabolic
Libre 3 CGM
  • Fasting glucose
  • Postprandial curves
  • Intra-workout glucose
  • Overnight stability
  • Time-in-range
🏃
Training
Exercise Log
  • Zone 2 running (primary)
  • Strength sessions
  • Active recovery
  • Training load (ATL/CTL)
  • Session RPE
🎙️
Narrative
Daily Reflection
  • Morning dictation (3–5 min)
  • Subjective energy rating
  • Stress level (1–10)
  • Diet compliance
  • Life context / schedule
AM1
Check fasting glucose on Libre 3
AM2
Review HRV + Body Battery on Garmin
AM3
Dictate stream-of-consciousness analysis
AM4
Upload CGM overnight screenshot
AM5
Decide: Push · Maintain · Recover · Rest
Sample Output — CGM Curve (Zone 2 Run Day)
Glucose mg/dL · 24-hour trace · Zone 2 training day
180 70 RUN MEAL
48h
Zone 2 glucose suppression window after 60+ min run
−12
mg/dL average fasting reduction after training days
Variables required to predict exercise hypoglycemia risk
+20
mg/dL higher postprandial spike after sleep-deprived nights
↑124
mg/dL acute glucose rise during strength training (catecholamine effect)
90m
Faster postprandial normalization on high-training-load days
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Never compromise a high-leverage day in life for a low-leverage workout.
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Your body is producing logs every day. PGIS is simply reading them.
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Endurance training is not just exercise. It is metabolic engineering.