Summary:
These ten VO2 running sessions give you a range of ways to include Zone 5 within your 10K training. From shorter repetitions to longer intervals, each workout offers a different way to structure periods of very hard running.
Bringing Zone 5 Into Your 10K Training
Zone 5 sessions give you different ways to introduce very hard running into your 10K preparation without every workout needing to follow the same structure. You might use short repetitions that give you regular recovery or spend longer within each effort before getting the chance to reset. Both approaches can place a high demand on your aerobic capacity while giving the session a very different feel.
The ten workouts below are there to give you options rather than a sequence to follow. The amount of Zone 5 running and the recovery between efforts vary across the sessions, allowing you to choose a structure that suits where you are in your training. If a workout feels like too much, you can reduce the number of repetitions or give yourself more recovery without needing to turn the session into something you simply have to get through.
Find your intensity with our How Should You Use Running Zones for 10K Training? guide, which covers the metrics you can use to guide your effort across the different training zones.
10 Example VO2 Run Sessions for 10K
1. 2-Minute Repeats
Purpose: Builds your ability to repeatedly produce very hard efforts while using the recoveries to maintain the quality of your running across the session.
Warm-Up: 10 min jog
Main Set: 5 x 2 min @ Zone 5 (2 min recovery between)
Cool-Down: 10 min jog
2. 400m Intervals
Purpose: Uses distance-based repetitions to break very hard running into shorter efforts, with recovery helping you maintain your pace and running form across the session.
Warm-Up: 10 min jog
Main Set: 8 x 400m @ Zone 5 effort (90 sec recovery between)
Cool-Down: 10 min jog
3. 1-Minute On/Off
Purpose: Uses equal work and recovery periods to repeatedly return to Zone 5 before you have fully recovered from the previous effort.
Warm-Up: 10 min jog
Main Set: 10 x 1 min @ Zone 5 (1 min recovery between)
Cool-Down: 10 min jog
4. VO2 Pyramid
Purpose: Challenges your pacing control as the interval duration changes, particularly through the longer middle effort when maintaining Zone 5 becomes more demanding.
Warm-Up: 10 min jog
Main Set: 1 min → 2 min → 3 min → 2 min → 1 min @ Zone 5 (2 min recovery between)
Cool-Down: 10 min jog
5. Short Hill Repeats
Purpose: Uses the incline to increase the force required with each stride, combining very hard running with a greater muscular demand.
Warm-Up: 10 min jog
Main Set: 6 x 60 sec uphill @ Zone 5 effort (walk down recovery between)
Cool-Down: 10 min jog
6. VO2 Ladder
Purpose: Progresses from shorter to longer Zone 5 efforts, challenging you to sustain the intensity for increasing periods as the session develops.
Warm-Up: 10 min jog
Main Set:
4 x 90 sec @ Zone 5 (90 sec recovery between)
3 x 2 min @ Zone 5 (2 min recovery between)
Cool-Down: 10 min jog
7. Threshold Into VO2 Intervals
Purpose: Challenges you to produce repeated Zone 5 efforts after sustained threshold running, when some fatigue has already accumulated.
Warm-Up: 10 min jog
Main Set:
8 min @ Zone 4
4 x 2 min @ Zone 5 (90 sec recovery between)Cool-Down: 10 min jog
8. Broken VO2 Sets
Purpose: Groups the shorter efforts into blocks so you can maintain the quality of repeated Zone 5 running before using a longer recovery to reset for the next set.
Warm-Up: 10 min jog
Main Set: 2 x (4 x 1 min @ Zone 5) (1 min recovery between) (3 min recovery between sets)
Cool-Down: 10 min jog
9. VO2 With Strides
Purpose: Adds brief faster running after the Zone 5 intervals, giving you practice changing pace while maintaining running coordination on fatigued legs.
Warm-Up: 10 min jog
Main Set:
4 x 2 min @ Zone 5 (2 min recovery between)
4 x 20 sec strides (walk between)
Cool-Down: 10 min jog
10. 3-Minute VO2 Repeats
Purpose: Extends the duration of each Zone 5 effort, increasing the time you must maintain very hard running before recovery.
Warm-Up: 10 min jog
Main Set: 4 x 3 min @ Zone 5 (2:30 recovery between)
Cool-Down: 10 min jog
Balancing Very Hard Running With Your 10K Training
VO2 sessions are only one part of your 10K preparation and they do not need to dominate the week to have a place within it. The workouts here give you different ways to include very hard running while leaving room for the other intensities and running that make up your training. That may mean choosing a shorter session at times rather than always looking for the workout with the greatest amount of Zone 5 work.
How you respond to the session matters too. Very hard running can carry a considerable recovery demand, particularly when several repetitions are involved, so think about what comes before and after the workout rather than viewing it in isolation. Giving yourself enough time to recover can help you approach your next important session ready for what it asks from you.
To dig deeper into Zone 5, our Where Does VO2 Max Training Fit Into Your 10K Preparation? guide explores the adaptations associated with VO2 training and how they can contribute to your 10K performance.
Final Thoughts
VO2 training gives you a chance to experience a very different intensity within your 10K preparation. These sessions will be demanding and that is part of what makes them valuable when they are used at the right time and balanced with appropriate recovery.
The ten workouts give you plenty of options when you want to include Zone 5 without relying on the same session each time. You may find some become favourites and others simply give you something different to try. Whichever you choose, enjoy the challenge of running hard and give yourself time to recover before asking your body to do it again.
Always consult with a medical professional or certified coach before beginning any new training program. The information provided is for educational purposes only and is not a substitute for personalised advice.
