Polarised Training: The Key to Optimising Your Cycling Performance?

Last Updated on 17 September 2026:

Polarised training for cyclists is a way to build endurance and improve performance without making every ride moderately hard. It centres on plenty of genuinely easy riding, alongside a small number of demanding interval sessions. This guide explains how the approach works, how to apply the 80:20 principle and who is most likely to benefit.

 

Covered in this blog

• What is polarised training
  • • The zones
  • The 80:20 rule and time in zone
    • Workouts vs time in zone
  • How to implement polarised training in cycling
    • Example training week
  • Scientific evidence supporting polarised training
• Who benefits from polarised training
  • Works well for
  • May not work well for
• Summary
  • References

 

What is polarised training?

Polarised training is a training model that divides workouts into two distinct intensity zones: low and high. The goal is to avoid the middle-intensity zone, which is often associated with “junk miles” that are not intense enough to induce significant fitness gains but too strenuous to allow for proper recovery.

 

The zones

1. Low intensity (Zone 1-2): This includes rides at a comfortable pace, where conversation is easy. It’s roughly 80-85% of the total workouts.
2. High intensity (Zone >4): These are intense efforts, such as interval training or hill repeats, making up about 15-20% of the total workouts.

The 80:20 rule and time in zone

When we refer to the 80:20 distribution in polarised training, it’s essential to differentiate between the distribution of workout sessions and the actual time spent in each zone. While ~80% of your training sessions might be low intensity and ~20% high intensity, the actual time spent in each zone is more nuanced.

 

 

Workouts vs. time in zone

• 80:20 distribution of workouts: This means that out of all your training sessions, 80% should be at low intensity and 20% at high intensity.
• Time in zone: Research has shown that the actual time spent in high-intensity zones is much smaller, often less than 10% of total training time. This discrepancy arises because high-intensity efforts are shorter but more impactful and you have low intensity within a high intensity workout (recovery periods and cool-down, as examples). Conversely, low-intensity efforts make up a more significant portion of total training time.

For example, if you train for 10 hours a week, you might have 8 hours of low-intensity rides and 2 hours of high-intensity workouts. Within those high-intensity workouts, the actual time spent at high intensity could be as little as 20-40 minutes.

 

How to implement polarised training in cycling

Implementing polarised training involves structuring your workouts to include mostly low-intensity rides with a few high-intensity sessions each week. Here’s a step-by-step guide:

1. Assess your current fitness level: Use tools like heart rate monitors or power meters to determine your training zones.
2. Plan your training schedule: Allocate around 80% of your weekly training volume to low-intensity rides. These should be long and steady, focusing on endurance.
3. Incorporate high-intensity intervals: Dedicate 20% of your training to high-intensity sessions. These can be interval workouts indoors, hill sprints, or similar.
4. Monitor your progress: Use training software like Humango to track your performance and adjust your plan as needed.

 

Example training week

• Monday: Rest or active recovery (easy spin for 1 hour)
• Tuesday: High-intensity interval training (2x 20 30:15 seconds at Zone 5 with 5-minute recovery between the two sets)
• Wednesday: Low-intensity endurance ride (2-3 hours at Zone 1-2)
• Thursday: Low-intensity endurance ride (1.5-2 hours at Zone 1-2)
• Friday: High-intensity training (7×3 minutes at Zone 5 with 1.5-minute recovery)
• Saturday: Long low-intensity ride (3-4 hours at Zone 1-2)
• Sunday: Low-intensity recovery ride (1-1.5 hours at Zone 1)

 

Scientific evidence supporting polarised training

Several scientific studies have validated the effectiveness of polarised training. For instance, a study published in the Journal of Strength and Conditioning Research found that endurance athletes who followed a polarised training model showed greater improvements in performance compared to those who trained at moderate intensities consistently.

Another study in the International Journal of Sports Physiology and Performance reported that polarised training led to significant enhancements in both aerobic and anaerobic capacities among competitive cyclists.

A study by Stöggl and Sperlich (2015) demonstrated that athletes following a polarised training model improved their performance markers more significantly than those following a threshold or high-intensity model. The researchers concluded that polarised training is highly effective for improving endurance performance due to the high volume of low-intensity training that enhances aerobic capacity while the high-intensity intervals stimulate key physiological adaptations.

Who benefits from polarised training?

Works well for

• Elite athletes: Those with a solid base of fitness and experience can handle the high volume and intensity required. The combination of extensive low-intensity work and targeted high-intensity efforts is ideal for these athletes to maximise performance gains.
• Endurance cyclists: Cyclists training for long-distance events benefit from the endurance and aerobic capacity developed through polarised training. The high volume of low-intensity training helps build a strong aerobic base, while the high-intensity efforts enhance power and speed.
• Athletes with high availability: Athletes who have more time to train each week benefit from polarised training as the significant volume of low-intensity training can create the necessary adaptations. Low-volume training may not induce the same level of improvement, making polarised training particularly advantageous for those who can commit to longer training sessions.

 

 

May not work well for

• Beginner cyclists: Those new to cycling might find the high-intensity sessions too challenging without a proper fitness base. Beginners may benefit more from a gradual increase in training intensity and volume to build a solid foundation before adopting a polarised approach.
• Injury-prone athletes: High-intensity efforts can increase the risk of injury if not managed properly. Athletes with a history of injuries should approach polarised training with caution, ensuring adequate recovery and proper technique during high-intensity sessions.
• Recreational cyclists: Cyclists who ride mainly for enjoyment might not need the rigorous structure of polarised training. For these cyclists, a more flexible training approach that prioritises enjoyment and general fitness may be more suitable.

 

Summary

Polarised training can be a useful framework, but the right balance of easy riding, intensity and recovery depends on your available time, experience and goals. If you would like help applying it to your own cycling, Book a Free Consultation.

 

References

• Seiler, S., & Kjerland, G. O. (2006). Quantifying training intensity distribution in elite endurance athletes: is there evidence for an “optimal” distribution? Scandinavian Journal of Medicine & Science in Sports, 16(1), 49-56.
• Stöggl, T. L., & Sperlich, B. (2015). Polarized training has greater impact on key endurance variables than threshold, high-intensity, or high-volume training. Frontiers in Physiology, 6, 33.
• Laursen, P. B., & Jenkins, D. G. (2002). The scientific basis for high-intensity interval training. Sports Medicine, 32(1), 53-73.