Aerobic Engine Builder

Aerobic Engine Builder

Workout - Aerobic Engine Builder

  • 10min @ 6'30''/km
  • 6min @ 5'05''/km
  • 6 lots of:
    • 2min @ 4'45''/km
    • 1min rest
  • 6 lots of:
    • 1min @ 4'35''/km
    • 1min rest
  • 4 lots of:
    • 3min @ 4'40''/km
    • 45s rest
  • 5min @ 6'30''/km
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Intro

Plenty to take from “A FULL WEEK Of Marathon Preparation Training - LONDON MARATHON 2024??” by The FOD Runner. Here’s the approach so you can run one of the sessions. Watch the full video for technique tips.

Key points

  • Training focus: build aerobic strength (Zone 1-2) and keep fitness after an Oxford half-marathon, then move into marathon prep.
  • Heart-rate zones: easy runs around 120-130 bpm, steady efforts at 144-157 bpm. Threshold sits near 171 bpm, but the workouts here don’t push there.
  • Pace philosophy: ditch the watch and run by feel. Tempo runs at half-marathon race pace; recovery is pure easy running.
  • Weekly structure:
    • Monday: 60-minute steady moderate run (mid-140 bpm).
    • Tuesday: tempo plus intervals. 6-min tempo, then 20 min of repeats (6 x 2 min, 6 x 1 min, 4 x 3 min) with 60-second rests on the 2- and 1-minute reps and 45-second rests on the 3-minute reps.
    • Wednesday: easy 45-50 min Zone 1 run with HR in the 120-130 bpm window.
    • Thursday: 45-minute tempo session, 6 x 4 min at half-marathon effort (about 1 h race pace) with 90-second rests; 10 min warm-up, easy cool-down.
    • Friday: 50-minute easy run at around 130 bpm.
    • Saturday: long steady run (target around 2 h) on hilly terrain, controlled effort, HR around 148 bpm, building aerobic time.
    • Sunday: rest or optional light jog.
  • Fuel strategy: light breakfast (water, some maltodextrin) and reduce gels on longer efforts to work on fat burning.

Workout example (Tuesday’s mixed tempo + intervals)

  • Warm-up: 10 min easy jog.
  • Tempo block: 6 min at a comfortably hard effort (just under threshold, around 155-165 bpm).
  • Intervals (20 min total):
    • 6 x 2 min at strong aerobic pace (HR around 160-166), 60 sec rest.
    • 6 x 1 min at harder effort (still aerobic), 60 sec rest.
    • 4 x 3 min at hard effort (near threshold), 45 sec rest.
  • Cool-down: 5 min easy jog.
  • Pace reference: the 2-minute and 1-minute reps came in around 7:46/mile; the 3-minute repeats closer to 7:40/mile.

Closing note

Run these, scale paces to your own zones, and adjust the repeats in the Pacing app as needed.


References

Inspired by The FOD Runner

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