What Is Running Economy? How To Actually Improve It

Running economy is the amount of oxygen (and energy) you burn to hold a given submaximal pace. Two runners with the same VO2max can finish a race minutes apart, and running economy is usually why. You improve it mainly through heavy strength training, plyometrics, and small biomechanical tweaks like a slightly higher cadence and less vertical bounce. Mileage alone barely moves the needle.

What running economy actually measures

Think of running economy as your body's fuel efficiency, the running version of miles per gallon. It's defined as the oxygen cost (VO2, in ml/kg/min or ml/kg/km) needed to maintain a steady submaximal speed. Lower cost at the same pace means better economy.

Here's why coaches obsess over it. VO2max sets the ceiling on how much oxygen you can process, but running economy decides how much of that ceiling you waste. A more economical runner holds marathon pace at a lower percentage of their max, so they fatigue slower and have more left for the finish.

The catch: economy is stubborn. A 2015 review in Sports Medicine - Open on measurement and determinants confirmed it's shaped by a tangle of metabolic, biomechanical, and neuromuscular factors, not one single lever. That's exactly why "just run more" stops working after your first year.

What the research says drives it

A 2024 systematic review and meta-analysis in Sports Medicine (Van Hooren et al.) pooled 51 studies and 1,115 runners to test which biomechanical variables predict running economy. The results are humbling for anyone chasing a perfect form cue.

The single most important takeaway: even the strongest biomechanical variable left about 88% of the difference between runners unexplained. Body proportions, tendon properties, and training history carry most of the load. So form tweaks help at the margins, but they're not magic.

The interventions that reliably work

If biomechanics explain only a slice, what actually shifts economy? Training studies point in a consistent direction.

1. Lift heavy. A 2022 meta-analysis in Sports Medicine - Open found heavy resistance training (near-maximal loads) improved running economy more than plyometrics, with gains typically in the 2-8% range. The mechanism is neuromuscular: stiffer, more coordinated muscles that return energy instead of absorbing it.
2. Add plyometrics. Jump and bounding drills build the stretch-shortening cycle, the elastic recoil in your tendons. A separate review found non-endurance interventions averaged roughly a 3.8% reduction in oxygen cost.
3. Run intervals near threshold. A 2024 meta-analysis in the Journal of Human Kinetics found high-intensity interval training improved economy more than steady moderate running, likely by pushing lactate tolerance and neuromuscular efficiency.
4. Trim your bounce. Since vertical oscillation is the strongest biomechanical predictor, reducing how much you bounce is one of the few form cues backed by the data.

Notice what's missing: static stretching. The same reviews found flexibility work does little for economy and can even blunt it acutely. Skip the long pre-run stretch routine.

Where cadence fits in

Cadence gets a lot of airtime, and the evidence is genuinely mixed. The 2024 meta-analysis found a small but real correlation (r = -0.20) between higher cadence and lower energy cost. A 2025 systematic review in Cureus on cadence and injury prevention reached a friendlier verdict: a moderate 5-10% cadence increase didn't hurt metabolic cost, and in some runners nudged economy slightly better while cutting impact forces.

But there's a hard limit. Studies consistently show that forcing your cadence too far from your self-selected rate, in either direction, raises energy cost. Your body already gravitates toward a near-optimal stride frequency for your build.

The practical rule matches the injury-prevention research: if you overstride and bounce, test a 5-10% bump over your natural cadence, not a jump to a mythical 180. If your baseline is 158 steps per minute, aim for about 166, not 180.

Locking in a target cadence without staring at your watch

Knowing your target cadence is easy. Holding it for 40 minutes while tired is the hard part, and most runners drift back to their bouncy default within a mile.

The most reliable fix is auditory-motor entrainment: your feet unconsciously sync to a steady beat. Set music to match your target step rate and your stride follows the tempo without conscious effort. This is exactly the mechanism the metronome studies used to retrain cadence in recreational runners.

Manually hunting for songs at the right BPM kills the flow, though. A tool like GagaRun imports your existing Apple Music or Spotify playlists and locks every track to your target cadence, so a 166-step-per-minute run stays at 166 without you skipping songs or watching your wrist. You get your own music working as a metronome.

Frequently asked questions

How long does it take to improve running economy?

Strength-based gains typically show up after 6-12 weeks of consistent training. Both the resistance and plyometric reviews noted that programs need to run at least 6-8 weeks before economy improvements become measurable.

Can beginners improve running economy?

Yes, and often faster than trained runners, because there's more low-hanging fruit. Early mileage builds your aerobic base, and adding strength work compounds the effect. The percentage gains from interventions tend to be larger in recreational runners than elites.

Is running economy more important than VO2max?

For long-distance events, often yes. VO2max sets your potential ceiling, but among runners with similar VO2max values, economy frequently predicts who finishes faster. It's the difference between having a big engine and using fuel efficiently.

Does losing weight improve running economy?

It improves the economy number expressed relative to body weight, since you're moving less mass at the same speed. But don't chase weight loss at the cost of the strength that drives neuromuscular efficiency. Power-to-weight matters more than weight alone.