Multidimensional Improvement of Threshold Power: Breakthrough Strategies Beyond Sweet Spot

Breaking Through the Sweet Spot Training Plateau

Sweet Spot training (88-93% of FTP) is the most commonly used method among amateur cyclists to improve FTP, but if you’ve been doing Sweet Spot training for 8-12 weeks and feel stuck, it’s time to introduce other strategies.

Multiple Intensity Angles for Threshold Training

FTP is not a fixed “point” but a “zone” determined by multiple physiological systems. Therefore, improving FTP can be approached from different angles:

True FTP improvement requires comprehensive training stimuli, not just Sweet Spot.

Breakthrough Strategy 1: Add Direct Threshold Training

In addition to Sweet Spot training, incorporate training that is truly at FTP:

Workout: 3 x 12 minutes @ 100-105% FTP

• Recovery: 6 minutes Zone 2
• Feel: Very uncomfortable, but doable
• Frequency: Once per week

This is closer to “threshold stimulus” than Sweet Spot, promoting increased activity of lactate-clearing enzymes.

Breakthrough Strategy 2: Add VO2max Training

Improving VO2max is the most effective way to indirectly improve FTP:

Workout: 5 x 4 minutes @ 110-115% FTP

• Recovery: 4 minutes Zone 1-2
• Purpose: Keep the cardiovascular system at maximal oxygen uptake intensity
• Frequency: Once every 10 days (requires adequate recovery)

Breakthrough Strategy 3: Extend Sweet Spot Duration

If you can comfortably complete 2 x 20 minutes of Sweet Spot, challenge yourself with longer continuous durations:

Breakthrough Strategy 4: Polarized Training

A “polarized” strategy that reduces Sweet Spot while increasing Zone 2 and VO2max:

Research shows that polarized training outperforms Sweet Spot-dominant approaches over 6-12 months of long-term training.

Breakthrough Strategy 5: Periodic Overload

Design a 3+1 periodization cycle:

• 3 weeks: Gradually increase training volume and intensity
• Week 4: Deload and recover
• Test FTP immediately after the recovery week—you’ll often see progress

The Importance of Training Variety

The body’s adaptation principle:
The body develops “Adaptive Resistance” to the same training stimuli. Introducing new training stimuli “forces” the body to continue adapting.

Implementation:

• Change your primary training method every 6-8 weeks
• Occasionally try completely different workouts
• Don’t let your body “predict” what comes next

Evaluating Training Effectiveness

Perform an FTP test every 6-8 weeks:

• If improvement > 3%: Training is effective, keep going
• If improvement is 1-3%: Normal rate of progress
• If stagnant or declining: May be overtraining or a need to adjust strategy

Related Reading

• Sweet Spot Training: The Golden Zone for Maximizing Training Benefits in Limited Time
• Cycling Sweet Spot Training: The Most Underrated Shortcut to FTP Improvement
• Sweet Spot Training: The High-Efficiency Training Method at 88–93% of FTP
• Sweet Spot for Climbing Training: Maximizing Training Benefits at 88–93% FTP