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Writer's pictureJohn Mendenhall

The Importance of 80/20 Triathlon Training: Why it's Vital for Performance and Injury Prevention

Updated: Jul 22, 2024

Finding Balance in Triathlon Training: The Crucial 80/20 Rule for Performance and Injury Prevention


As a triathlon coach and physical therapist, I've witnessed firsthand the transformative power of triathlon training when done correctly. However, I've also seen the consequences of overtraining and pushing too hard, leading to injury and burnout. That's where the 80/20 rule comes into play, offering a guiding principle for athletes to optimize their training while minimizing the risk of injury. I'll dive into the importance of the 80/20 triathlon training approach and why it's vital for both performance and injury prevention.


Understanding the 80/20 Rule:

The 80/20 rule, also known as the Pareto Principle, suggests that roughly 80% of results come from 20% of efforts. Applied to triathlon training, this means that roughly 80% of your training volume should be at low intensity, while the remaining 20% can be higher intensity work.


Benefits of the 80/20 Approach:

1. Injury Prevention: By dedicating the majority of your training to low-intensity sessions, you reduce the risk of overuse injuries commonly associated with excessive high-intensity training.

2. Improved Performance: Contrary to what some may think, spending more time at lower intensities can actually lead to greater improvements in endurance and overall performance over time.

3. Mental Refreshment: Low-intensity sessions provide valuable opportunities for mental relaxation and enjoyment, essential for long-term motivation and sustainability in the sport.

4. Consistency: By avoiding burnout and injury, athletes can maintain more consistent training over the long term, leading to better results come race day.


Implementing the 80/20 Rule in Triathlon Training:

1. Zone Training: Utilize heart rate zones or perceived exertion to gauge the intensity of your workouts. Keep the majority of your sessions in Zone 1 and Zone 2, reserving Zone 3 and above for specific high-intensity sessions.

2. Structured Training Plans: Work with a coach or utilize training plans that incorporate the 80/20 principle, ensuring a balanced approach to your training regimen.

3. Listen to Your Body: Pay attention to signs of fatigue, soreness, or persistent discomfort. Adjust your training volume and intensity accordingly to prevent overtraining.

4. Recovery: Incorporate adequate rest and recovery into your training schedule. This includes proper nutrition, hydration, sleep, and active recovery techniques such as stretching and foam rolling.


Let's put the 80/20 rule into perspective with an example. Imagine a week of triathlon training:

- Monday: Rest day

- Tuesday: Easy swim (Zone 1) and Track/speed run (Mostly Zone 2, Speed Work Zone 3-5)

- Wednesday: Interval bike workout (Zone 3-5)

- Thursday: Easy run (Zone 2)

- Friday: Recovery swim (Zone 1)

- Saturday: Brick workout (bike-run) focusing on endurance (Zone 2-Zone3-5)

- Sunday: Long run (Zone 2)

By structuring your week with the majority of sessions in Zones 1 and 2, interspersed with targeted higher intensity sessions, you can optimize your training while minimizing the risk of injury.


In the world of triathlon training, finding the right balance is key. The 80/20 rule offers a valuable framework for athletes to achieve peak performance while safeguarding against the pitfalls of overtraining and injury. By prioritizing low-intensity training and incorporating high-intensity work strategically, you can maximize your potential as a triathlete and enjoy a long and fulfilling journey in the sport.


Remember, triathlon is not just about crossing the finish line—it's about the journey, the growth, and the experiences along the way. So lace up those running shoes, hop on that bike, and dive into the pool with intention, passion, and a commitment to balanced training.

Happy training, and may your triathlon adventures be filled with joy, progress, and personal bests!


Dr. John Mendenhall II PT, DPT

@Triathlo101 on YouTube

Resources:

1. Fitzgerald, Matt. "80/20 Triathlon: Discover the Breakthrough Elite-Training Formula for Ultimate Fitness and Performance at All Levels." Hachette UK, 2018.

2. Seiler, Stephen. "What is the 'minimum effective dose' of endurance training?" Institute of Sport Sciences and Medicine, 2010.

3. Hansen, Matt, and Fitzgerald, Matt. "The 80/20 Principle of Running." VeloPress, 2014.

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