JAMES KING · life ·
2026
HIGH INTENSITY INTERVAL TRAINING via Strava WED 16 JUL 2025

Circuit Training.

by JAMES KING · on Strava →
45min
minutes
4min
in zones 4–5
159bpm
peak hr
577kcal
calories

the engine.

121bpm
avg
159bpm
peak
52/100
effort · hard
Heart rate bpm, over the zone it was in
Z0 restZ1 recoveryZ0 restZ1 recoveryZ0 restZ1 recoveryZ2 enduranceZ1 recoveryZ2 enduranceZ3 tempoZ2 enduranceZ3 tempoZ2 enduranceZ3 tempoZ2 enduranceZ3 tempoZ4 thresholdZ3 tempoZ2 enduranceZ3 tempoZ4 thresholdZ3 tempoZ4 thresholdZ3 tempoZ4 thresholdZ3 tempoZ2 endurance
Minutes in each heart-rate zone
  1. 21% Z0 Z0 rest
  2. Z1 recovery: 5%
  3. 30% Z2 Z2 endurance
  4. 35% Z3 Z3 tempo
  5. Z4 threshold: 9%

the fine print

calories
577kcal≈ 2.0 slice of pizza
effort
52/100hard
training load
43trimpeasy
recover in
8h
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