Pyramidal Training Model Explained: The Balance Between Polarized and Threshold Approaches

The Three Major Schools of Training Intensity Distribution

In endurance sports training, how to distribute training volume across different intensities has always been a core issue. There are currently three mainstream models:

Pyramidal Training gets its name from the shape of its intensity distribution—decreasing layer by layer from low to high intensity, forming a pyramid shape. It retains the core of the polarized model’s large volume of low-intensity training, but shifts a portion of the high-intensity ratio from the polarized model into the threshold zone.

The Scientific Basis of the Pyramidal Model

Key Studies

Esteve-Lanao et al. (2007, Medicine & Science in Sports & Exercise) conducted a 5-month controlled study that divided trained runners into two groups:

• Pyramidal group (80/12/8): 5000m performance improved by 4.5%
• Threshold group (65/25/10): 5000m performance improved by 1.5%

Stöggl & Sperlich (2014) compared the effects of four training models in cross-country skiers over 9 weeks:

Although the polarized model performed best in this study, the pyramidal model consistently ranked second across all metrics, and it has one advantage the polarized model lacks—a higher proportion of threshold training leads to better threshold tolerance.

Why Is the Pyramidal Model Suitable for Amateur Riders?

1. The Reality of Time Constraints: The polarized model requires a large volume of low-intensity training (12-20 hours per week), while amateur riders typically only have 6-10 hours. The pyramidal model maintains an effective intensity distribution with less total volume.

2. The Importance of Threshold Capacity: In amateur road races and criteriums, sustained output near threshold is more practical than pure VO2max peaks. The pyramidal model directly trains this capacity.

3. Psychological Sustainability: The polarized model requires riders to spend large amounts of time “riding slow,” which is mentally challenging for weekend warriors. The pyramidal model allows for more threshold training that feels like “actual training.”

4. Compatibility with Group Rides: Weekend group rides in Taiwan typically fall within Zone 2-3. The pyramidal model can naturally incorporate group rides into a training plan, unlike the polarized model which requires deliberately suppressing group ride intensity.

Practical Implementation Framework

Three-Zone Definition (Power-Based)

Weekly Training Volume Allocation Examples

8-Hour Weekly Plan (Advanced Amateur):

Intensity Distribution Statistics:

• Zone 1: Approximately 5.5 hours (69%)
• Zone 2: Approximately 1.5 hours (19%)
• Zone 3: Approximately 1 hour (12%)

6-Hour Weekly Plan (Time-Constrained Riders):

Key Differences from the Polarized Model

Differences in Training Philosophy

The core philosophy of the polarized model is “either very easy or very hard,” deliberately avoiding moderate intensity. Seiler argues that moderate-intensity training produces excessive fatigue without providing sufficient adaptive stimulus.

The pyramidal model, on the other hand, holds that training in the threshold zone has unique value:

• Directly improves the lactate threshold (LT2) inflection point
• Improves fuel utilization efficiency (Fat/Carb ratio) near threshold
• Enhances psychological tolerance at threshold power
• More closely mirrors actual race intensity

When to Choose the Pyramidal Model?

Seasonal Adjustment Recommendations

Annual Planning for Taiwanese Riders

Considering Taiwan’s climate and race calendar (such as the Taiwan KOM Challenge typically held in autumn):

• Nov-Jan (Base Phase): Lean toward polarized distribution (80/10/10), using cooler weather to accumulate long-distance mileage
• Feb-Apr (Build Phase): Shift to pyramidal distribution (70/20/10), increasing threshold training
• May-Jul (Hot Summer): Reduce volume but maintain intensity, primarily on indoor trainers
• Aug-Oct (Race Season): Pyramidal distribution (70/18/12), adjusted for target events

Monitoring and Adjustment

Key Monitoring Metrics

1. Training Intensity Distribution (TID): Review the actual time ratio across the three zones monthly to ensure it aligns with the pyramidal distribution
2. Chronic Training Load (CTL) Trend: CTL should rise steadily, increasing by no more than 3-5 TSS/day per week
3. Threshold Power Progress: Perform an FTP test every 4-6 weeks or estimate using a 20-minute power output
4. Subjective Recovery Status: Assess daily on a 1-10 scale; if the score stays below 5 for two consecutive days, reduce training volume

Common Adjustment Strategies

• If FTP plateaus for more than 6 weeks: increase Zone 3 proportion to 15%, temporarily shifting toward a polarized approach
• If fatigue persists: reduce Zone 2 proportion and increase Zone 1
• If pace drops noticeably in the latter half of races: add longer threshold sessions (20-30 minutes) within Zone 2

Conclusion

The pyramidal model is not a compromise between polarized and threshold training, but rather an optimization tailored to the real-world constraints of amateur riders. It acknowledges the unique value of threshold training while preserving the foundation of substantial low-intensity work. For Taiwanese cyclists who train 6-10 hours per week, have a regular group-ride routine, and aim for steady progress, the pyramidal model may be the most pragmatic choice.

Related Reading

• Polarized vs. Pyramidal Training: Physiological Evidence and Applicable Scenarios for Two Intensity Distributions
• Polarized Training vs. Threshold Training vs. Pyramidal Training: How to Choose Among Three Intensity Distribution Philosophies?
• Pyramidal Training: Another Elite Endurance Model
• Swimming Training Periodization: Polarized or Pyramidal? Design Your Season with Lactate Zones