Double Threshold Power Day

Workout - Double Threshold Power Day

• 10min @ 6'00''/km
• 5 lots of:
  • 6min @ 4'45''/km
  • 1min rest
• 5min @ 6'00''/km
• 10min @ 6'00''/km
• 16 lots of:
  • 1min 30s @ 4'30''/km
  • 1min rest
• 15min @ 6'00''/km

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Intro: a summary of “ARE Double THRESHOLD RUNNING Days Getting Me FITTER After Just 3 WEEKS?” by The FOD Runner. Here are the essentials so you can run this workout. Watch the full video for the rest.

Key points:

• Double-threshold pairs a sub-threshold morning run with a harder evening threshold session. It builds aerobic capacity and muscular resilience.
• Evening: 16 reps of 90 seconds at threshold with 60 seconds easy recovery (around 24 min at threshold, 16 min easy, 40 min total). For more on interval design, see Mastering Interval Training: Science-Backed Workouts and How a Smart App Can Personalize Them.
• Morning: 5 x 6 minutes at a comfortable sub-threshold pace with 1 min recovery. Keeps you ready without too much strain.
• Steady pacing throughout. Target lactate zones (around 2 mmol/L in the AM, 3-4 mmol/L in the PM), not max intensity.
• After 3 weeks: stronger legs, measurable fitness gains, and a better aerobic base. The work is taxing, so schedule an easy or rest day right after.

Workout:

1. Morning (sub-threshold): 5 x 6 min easy, 1 min jog between sets.
2. Evening (threshold): 10 min easy warm-up, then 16 x 90 sec at threshold (just below 10K race pace), 60 sec easy jog recovery. For pace guidance, see Mastering the 10K: Proven Training Plans, Pace Strategies, and How a Smart App Can Elevate Your Performance.
3. Cool-down: 5-10 min easy.
4. Hydrate and refuel. HR sits around 163 bpm during threshold efforts.

Practical tips:

• Start each rep at an even effort. Let rhythm find itself, don’t force a pace.
• Use heart rate or feel to stay in the right zone.
• The evening session should feel harder than the morning, but not all-out. Let lactate accumulate gradually. The same approach works for shorter distances; see Mastering 5K Speed: Proven Interval Strategies to Cut Minutes off Your Time.
• Full recovery the next day: rest or a very easy run.

Closing note: try the double-threshold workout and tweak the interval lengths in the Pacing app to your fitness.

References

• ARE Double THRESHOLD RUNNING Days Getting Me FITTER After Just 3 WEEKS? Full WORKOUT | FOD Runner - YouTube (YouTube Video)