Endurance Day
BLUF: Execute 30-60 minute Zone 2 run maintaining 60-70% max HR with conversational pace to build aerobic capacity and fat oxidation efficiency.
MISSION PARAMETERS
Duration: 30-60 minutes continuous
Heart Rate: 60-70% maximum
Pace: Conversational (complete sentences possible)
Terrain: Flat to rolling
PRE-MISSION (10 min)
Equipment: HR monitor, hydration, comms, weather gear
Warm-up:
Easy walk (2 min)
Light jog (3 min)
Dynamic movements: leg swings, hip circles, high knees (5 min)
EXECUTION
Target Zone Discipline:
Maintain nasal breathing
170-180 steps/minute cadence
Resist pace creep - ego not invited
Tactical Checkpoints:
0-15 min: Settle into zone
15-45 min: Monitor HR drift
45+ min: Hold discipline, maintain form
Abort if: HR >75% for 2+ minutes, breathing compromised, pain develops
POST-MISSION (10 min)
Cool-down: Gradual deceleration (5 min), static stretching (5 min)
Recovery Protocol: Hydrate, log metrics, refuel within 30 minutes
SUCCESS METRICS
80%+ time in target zone
Conversational pace maintained
Full duration completed
HR recovery <100 BPM within 5 minutes
TACTICAL NOTE: Zone 2 builds your aerobic engine. Go slow enough to go long. This is infrastructure work, not a speed mission.
Results