HIIT Count
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Total 00:00
Ready
20
7 rounds · 12 min
Start at14–18 · 1% incline

Sprints grow from 20 to 30, 45 and 60 seconds, then step back down. Recovery grows with each effort, so hold your pace all the way up the ladder.

Runner

Your workout

Pyramid interval workout timer

A pyramid workout climbs up and back down: sprints of 20, 30, 45 and 60 seconds, then 45, 30 and 20 again. Recovery grows with each sprint. The timer calls every change, so you just run.

↑ Start the timer

Treadmill settings

StepTimeSpeedIncline
Sprint20s14–18 km/h8.5–11 mph1%
Rest60s—0%
Sprint30s14–18 km/h8.5–11 mph1%
Sprint45s14–18 km/h8.5–11 mph1%
Rest90s—0%
Sprint60s14–18 km/h8.5–11 mph1%
Rest2:00—0%

Rounds: 7

Why it works

Changing the length of each effort trains both speed and staying power in one session. It also keeps the workout interesting, with a clear halfway point to aim for.

Who it's for

Intermediate runners who find fixed intervals boring and want a new challenge.

Questions

Should every sprint be the same speed?

Try to hold the same speed all the way. The 60-second peak will be the hardest, and the way back down feels like a reward.

How long is the workout?

About 12 minutes of intervals. Add a 5-minute warm-up and cool-down.

Can I make it easier?

Slow down on the longer sprints, or walk instead of standing during the recoveries.

Warm up with 5 minutes of easy walking or jogging first. Stop if you feel dizzy, faint or unwell. If you have a health condition, check with a doctor before starting hard exercise.