STRYD Precision Running Power

The STRYD Advantage

Moving Beyond Heart Rate for Precision, Consistency, and Performance.

The Limitations of Heart Rate Training

  • ▶ HR is a lagging indicator; it's slow to respond to changes in your effort.
  • ▶ Affected by external factors like heat, caffeine, stress, and poor sleep.
  • ▶ Measures your body's RESPONSE to work, not the actual work output.
  • ▶ Leads to inconsistent pacing, especially on hills and in changing conditions.

What is Running Power?

  • ▶ STRYD provides a direct, objective measure of your running intensity in watts.
  • ▶ It quantifies your mechanical work rate, similar to power meters for cyclists.
  • ▶ Unaffected by external factors, giving you a consistent metric for effort.
  • ▶ Responds instantly to changes in pace, terrain, and even wind.

Unlock Your "Why": Key Power Metrics

⚡️
Power (Watts)
The direct measure of your running intensity. Your guide for perfect pacing on any terrain.
💨
Air Power
The power required to overcome air resistance. Quantifies the effect of wind and drafting.
💪
Leg Spring Stiffness (LSS)
Measures how effectively you recycle energy. A key indicator of running economy.
⏱️
Critical Power (CP)
Your sustainable power threshold. A precise, dynamic alternative to lactate threshold pace.

Heart Rate vs. Power

Heart Rate Training
  • ● Lagging indicator, slow to react.
  • ● Influenced by heat, stress, caffeine.
  • ● Measures body's RESPONSE to work.
  • ● Inconsistent pacing on varied terrain.
STRYD Power Training
  • ● Instant, real-time feedback.
  • ● Objective and consistent metric.
  • ● Measures actual WORK OUTPUT.
  • ● Enables perfect pacing on any terrain.

Visualizing Pacing Consistency

Effort fluctuation on varied terrain. Lower is better.

Flat Ground
Rolling Hills
Windy Day
HR-Based Pacing
Power-Based Pacing

From Data to Action: Power-Based Training

  • ▶ Execute perfect pacing in races, regardless of hills or wind.
  • ▶ Structure precise interval workouts using power zones, not vague feelings.
  • ▶ Monitor running economy (via LSS) to track efficiency improvements over time.
  • ▶ Use Critical Power (CP) to set accurate training zones and predict race times.

Power for Every Race

🏁
5K / 10K
Dial in your exact race-day power target for a new PR. No more blow-ups.
⛰️
Trail & Ultra
Maintain consistent effort on steep climbs and descents, conserving energy for the long haul.
👟
Marathon
Pace perfectly from the start, avoiding the dreaded wall by running within your sustainable power limits.

Summary: The STRYD Advantage

🎯
Consistency
Power is your objective anchor for effort in any condition, every single run.
📈
Efficiency
Improve your running economy and learn to run faster with less effort.
🗺️
Guidance
Get precise pacing for workouts and races, eliminating the guesswork from training.
🏆
Performance
Train the right energy systems and unlock your true running potential.

Unlock Your Best Run.

Train with precision, race with confidence. Discover what you're truly capable of with STRYD.