Increasing VO2max means increasing your body’s ability to use oxygen under stress: this 3-week program uses strategic high intensity to give you a bigger, higher-performing “engine.”
- What it is: VO2max is the maximum volume of oxygen your body can consume per minute. It’s your “engine displacement.”
- Why increase it: A higher VO2max means running at paces that previously seemed difficult will become easy. You raise the ceiling of your performance.
- The Method: You don’t need to run a lot, you need to run hard. Intensity is key (Zone 5, or 90-100% of max HR).
- The Plan: 3 weeks with 2 quality workouts per week (Short intervals, Hills, Pyramid).
- The Rule: Recovery days must be truly slow. If you push on easy days, you won’t have the fuel for the hard days.
Want to Run Faster? You Need to Widen Your Engine.
There is a physical limit to how fast you can go with your current training. You can optimize technique, improve your mindset, buy the fastest shoes in the world. But if you drive a compact car, even if you drive it like a Formula 1 driver, you will never go as fast as a Ferrari.
To make the leap in quality, sometimes driving better isn’t enough. You have to change the engine.
In running, “changing the engine” means working on your VO2max. It’s hard, tough work that leaves you with your hands on your knees and the taste of iron in your mouth. But it’s also the only way to move the bar of your biological possibilities upward. If you feel stuck at certain paces, if your “fast” has been stagnant for months, it’s time to shock the system.
What Is VO2max and Why It’s the Magic Number for Your Performance
Without getting into a boring biology lesson: VO2max is the maximum amount of oxygen your muscles can use in a minute.
Imagine it as the roof of your aerobic house.
The higher the ceiling, the more room you have underneath to build your endurance (anaerobic threshold, marathon pace, 10k pace). If the ceiling is low, no matter how much you train endurance, you’ll soon hit your head.
Training VO2max means raising that ceiling. It means that, in a month, running at 5:00 min/km (or 4:00, or 6:00, depending on your level) will cost you less cardiac and muscular effort than today. You become a more efficient machine.
The 3-Week “VO2max Boost” Program
Warning: this isn’t a program for someone who started running yesterday. You need a solid base.
The plan includes 2 quality workouts a week. The other days? Slow run (regenerative) or rest. Don’t cheat on rest, or you risk getting injured.
Before every session: 15-20 minutes of slow warm-up + a few strides.
After every session: 10 minutes of cool-down.
Week 1: Short Intervals (The Classic 30/30)
We start by working on pure speed and the heart’s ability to rise and fall rapidly.
- Session A (Tuesday): The 30/30.
- Perform 30 seconds hard (almost max, but controlled) followed by 30 seconds of recovery (very slow jog, not walking).
- Repeat 15-20 times in a row without stopping.
- Goal: Don’t collapse. The 15th sprint must be as fast as the first.
- Session B (Friday): “Fartlek by Feel”.
- 40 minutes total. Inside, insert 10 variations of 1 minute hard (5k race pace) with 1 minute easy recovery. Don’t look at the watch too much, just push.
Week 2: Medium Hill Repeats (Strength + Heart)
Hills are the runner’s natural anabolic steroid. They force you to use more muscles and push your heart to the max without the traumatic impact of speed on the flat.
- Session A (Tuesday): Medium Hills.
- Find a hill with a medium gradient (6-8%).
- Run 6-8 repeats of 2 minutes uphill. Very intense effort (you shouldn’t be able to talk).
- Recovery: Jog back down slowly to the start.
- Session B (Friday): 4 x 4 minutes.
- On the flat. Run 4 minutes at a very sustained pace (5k race pace or slightly slower).
- Recovery: 3 minutes of very slow jogging between efforts.
- This is the workout that stimulates maximum oxygen consumption more than any other.
Week 3: Lactic Pyramid (The Final Test)
Let’s put it all together: speed and endurance.
- Session A (Tuesday): The Pyramid.
- Run the following fast segments with recovery equal to the running time (e.g., run 1 min, recover 1 min easy):
- 1 min – 2 min – 3 min – 2 min – 1 min.
- Intensity must be extremely high on the short minutes and slightly more controlled on the long ones.
- Session B (Friday): 5 x 3 minutes.
- Like the previous week, but we increase intensity.
- 5 repeats of 3 minutes at the maximum sustainable pace for that duration.
- Recovery: 2 and a half minutes (standing or walking). Here you must finish “empty.”
How to Measure Progress (Without Lab Tests)
How do you know if it worked? You don’t need an oxygen mask.
- The Cooper Test (DIY): Find a flat place. Run for 12 minutes as hard as possible (consistently). Measure the distance. If in a month you cover more distance, your VO2max has gone up.
- Heart Rate: Go for a run at your “old” average pace. If your heart rate is 5-10 beats lower than before, it means your engine has gotten bigger: you do the same speed with fewer RPMs.
- Feelings: This is the most important data. That hill that made you gasp? Now you do it breathing through your nose. That last kilometer of the race? Now you have the strength to sprint.
You’ve widened the engine. Now all that’s left is to take it to the road and have fun.


