跳至主要內容

Optimizing Cycling Cadence: Finding Your Golden RPM with Science

訓練科學

Optimizing Cycling Cadence: Finding Your Golden RPM Through Science

Introduction

“Lance Armstrong pedals at 100rpm, Eddy Merckx at 90rpm—who’s right?” The debate over cadence has accompanied nearly the entire modern history of road cycling. From a physiological standpoint, cadence selection involves three interdependent systems—muscle fatigue, metabolic efficiency, and neural adaptation. There is no absolute right or wrong, but there is a scientifically supported optimal range.

The Biophysics of Cadence

At the same power output, cadence and torque are inversely related: Power = Torque × Angular Velocity (Cadence)

  • Low cadence (<75rpm): Higher torque, requiring greater force per muscle contraction, increasing the recruitment of fast-twitch muscle fibers and raising the anaerobic metabolic component
  • High cadence (>95rpm): Lower torque, relying more on slow-twitch fibers and aerobic metabolism, but increasing cardiovascular strain
Cadence Range Primary Muscle Fibers Metabolic Profile Cardiovascular Load Muscle Fatigue Rate
<70 rpm Predominantly fast-twitch Anaerobic glycolysis Lower Higher
70–85 rpm Mixed Mixed metabolism Moderate Moderate
85–100 rpm Predominantly slow-twitch Aerobic oxidation Higher Lower
>100 rpm Slow-twitch Primarily aerobic High Low

Key Findings from Scientific Research

Self-Selected Cadence vs. Most Efficient Cadence

Multiple studies have found that most riders’ “self-selected cadence” typically falls between 85–95rpm, but when measured purely for energy efficiency (oxygen consumption/power), the most efficient cadence often lies in the 60–80rpm range. How is this contradiction explained?

Researchers have proposed the “fatigue dispersion hypothesis”: although a higher cadence slightly increases oxygen consumption, it shifts mechanical stress from the leg muscles to the cardiorespiratory system, delaying muscle fatigue during prolonged riding—an advantage for endurance racers.

Cadence and Lactate

At the same power output, a higher cadence (100rpm vs. 60rpm) lowers blood lactate concentration, indicating that a higher cadence helps maintain aerobic-dominant energy supply, offering an advantage for rides exceeding one hour.

How to Find Your Personal Optimal Cadence

Individual Factors Affecting Optimal Cadence

  • High proportion of slow-twitch fibers: Suited to higher cadence (90–100rpm)
  • High proportion of fast-twitch fibers (sprinter/puncher type): Lower cadence (80–90rpm) may feel more natural
  • Training age: Beginners typically need time to adapt to high cadence and should not be forced to change immediately
  • Terrain: Cadence naturally drops to 65–80rpm when climbing, while 90–100rpm can be maintained on flats
  • Ride duration: Shorter races (under 1 hour) can tolerate lower cadence; longer rides (over 3 hours) should lean toward higher cadence

Cadence Improvement Training Methods

High-Cadence Drill:

  • Choose a light gear and perform 1–2 minute high-cadence (100–110rpm) short intervals on flat roads, 3–5 reps per set
  • The focus is on maintaining a smooth pedal stroke and a steady body, not chasing maximum revolutions

Spin-Up Training:

  • Gradually accelerate from 80rpm to 105rpm, hold for 30 seconds, ease off, repeat 5 times

Practical Recommendations

  • Use a cycling computer or bike computer to monitor cadence, aiming to maintain 85–95rpm during flat-road aerobic training
  • On Taiwan’s rolling terrain, keeping cadence at 65–75rpm on climbs is sufficient—there’s no need to force a high cadence uphill
  • Cadence changes require a 4–8 week neural adaptation period; you may initially feel less efficient, which is normal
  • Sprint cadence can reach 110–130rpm and requires specialized neural speed training (bounce pedaling, single-leg pedaling)
  • If you feel ankle instability or knee discomfort at high cadence, evaluate your Bike Fit before adjusting cadence

Conclusion

There is no universally applicable “golden number” for cadence, but science gives us a clear direction: for most endurance-oriented Taiwanese riders, a flat-road cadence of 85–95rpm achieves the best balance between muscle fatigue and cardiovascular load. Through disciplined drill training and long-term riding, your golden cadence will naturally emerge—and that number belongs to you alone.

相關影片
訂閱CT的頻道

訂閱 CT Yeh,看武嶺實測與路線攻略

北進武嶺、西進武嶺、經典百K,每條路線都親自騎過,配速、爬升、補給點全部實拍實測。

467 部影片 · 累計 838 萬次觀看