Running Economy: What Makes Some People Naturally Efficient Runners

Introduction

Have you ever noticed that at the same pace, some runners look effortless while others are gasping for breath? The key behind this isn’t just cardiopulmonary fitness — it’s “Running Economy” (RE), the efficiency of oxygen consumption at a given speed. Research shows that two runners with identical VO2max can differ by more than 10 minutes in marathon finish time, with the more economical runner coming out ahead. In Taiwan’s hot, humid climate, every drop of sweat counts, making it essential for every runner to understand how to improve running economy.

The Physiological Basis of Running Economy

Running economy is shaped by multiple physiological factors working together:

• Muscle fiber composition: Runners with a higher proportion of slow-twitch (Type I) fibers have better aerobic metabolic efficiency and lower oxygen consumption
• Neuromuscular coordination: Efficient motor unit recruitment patterns reduce unnecessary muscle contraction
• Mitochondrial density: Training increases the number of mitochondria in muscle cells, improving ATP production efficiency
• Tendon elasticity: The Achilles tendon and plantar fascia store and release elastic energy, reducing the work required from active muscles

The Impact of Mechanics and External Factors

Research indicates that the effect of running form on running economy is often underestimated. Part of why elite Kenyan and Ethiopian distance runners perform so exceptionally lies in their distinctive body proportions — slender lower legs and narrow ankles that dramatically reduce the energy needed to swing the leg. Biomechanical studies have found:

• Smaller vertical oscillation is better: Excessive up-and-down bounce with every stride wastes energy. Ideal vertical oscillation is around 6–9 cm
• The cadence sweet spot: Most studies recommend 170–180 steps per minute; overly low cadence is often accompanied by overstriding, which increases braking forces
• Efficient arm swing: Swinging forward and back rather than crossing side to side reduces energy lost to counteracting rotational momentum
• Forward lean angle: A slight forward lean (about 5–10 degrees) uses gravity to assist propulsion rather than relying on active pushing off

Prolonged high-altitude training can also improve running economy. Taiwanese runners can take advantage of Hehuanshan (3,275 m) or the Qilai Mountain area for short-term altitude training.

Training Methods to Improve Running Economy

The good news is that running economy can be significantly improved through systematic training:

1. Interval training: Repeated 3–5 minute intervals at 95–100% VO2max intensity improve neuromuscular efficiency
2. Tempo runs: Sustaining lactate threshold intensity for 20–40 minutes boosts aerobic metabolic enzyme activity
3. Strides: Adding 4–6 sets of 20-second accelerations after easy runs strengthens neuromuscular coordination
4. Strength training: Maximal strength training targeting the glutes and quadriceps — studies show 8 weeks of resistance training can improve RE by 4–8%
5. Barefoot / minimal-support training: Brief barefoot running on grass strengthens plantar proprioception and lower-leg tendon elasticity

Practical Recommendations

Specific recommendations for Taiwanese runners:

• Add 2 core training sessions per week: 3 sets each of planks and side planks to reduce energy wasted on lateral trunk sway
• Use running dynamics data: Modern running watches (such as Garmin or Polar) can track vertical oscillation and ground contact time — aim for a vertical ratio below 8%
• Increase training volume gradually: Keep weekly increases under 10% to avoid injuries that interrupt training continuity
• The assistance of carbon-plate running shoes: Research confirms carbon-plate shoes can improve running economy by 4%, but they need to be paired with correct running form to be effective
• Weight management: In Taiwan’s hot summers, losing 1 kg of body weight can improve running economy by about 1–2%

Conclusion

Running economy is the cumulative result of long-term development, blending genetic talent, training adaptation, and technical refinement. While muscle fiber composition is largely determined at birth, neuromuscular coordination, running technique, and tendon elasticity can all be significantly improved through training. Taiwanese runners should seize every training opportunity, building step by step from posture, strength, and scientifically structured intensity training to improve their running efficiency. Remember: the runner who conserves the most energy is often the one laughing last.

Related Reading

• Running Economy: Ten Key Factors That Affect Running Efficiency
• Running Economy: Why Runners With the Same VO2max Have Very Different Race Times
• Running Economy: The Secret to Running Faster With Less Energy
• The Science of Running Economy: How to Run Faster With Less Energy