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Metrics Categories

Performance Scores

Performance scores quantify overall running efficiency and effectiveness. These metrics consider factors like:

  • Efficiency Score
  • Impact Score
  • Braking Score
  • Endurance Score
  • Warm-up Score
  • Sway Score
  • Variation Score

Efficiency

Efficiency measures how much energy you could be losing to excessive motion in your form. A lower efficiency score suggests that your form may be using more energy than necessary while a higher efficiency score suggests that you have a form with economical energy usage.

  • Maximize Your Energy Use – Reduce wasted movement and keep your energy focused on forward motion.
  • Improve Your Running Economy – A higher efficiency score means you’re running smoother and using less effort per step.
  • Refine Your Form – Identify areas like excessive arm swing or overstriding that could be costing you energy.

Variation

Variation measures how much your form changes from one stride to the next. A lower variation score suggests that you may have inconsistencies in your form while a higher variation score suggests that your form is consistent.

  • Find Your Rhythm – A consistent stride leads to better efficiency and lower injury risk.
  • Minimize Unnecessary Adjustments – Less variation means smoother, more predictable movement patterns.
  • Stay in Control – Detect inconsistencies in footstrike, cadence, or posture before they impact performance.

Impact

Impact measures the strength of the forces that your body experiences as you contact the ground. A lower impact score suggests that you are stressing your body by exposing it to large forces while a higher impact score suggests that you are mitigating the stress that your body experiences.

  • Protect Your Joints – Lower impact means less stress on your body with every step.
  • Absorb Force Efficiently – A controlled landing reduces excessive force traveling up your legs.
  • Optimize Ground Contact – Identify if you're landing too hard and adjust for a softer, more controlled stride.

Braking

Braking measures how much you decelerate while your feet are in contact with the ground. A lower braking score suggests that your form is causing you to lose energy by temporarily slowing yourself down with each stride while a higher braking score suggests that you have a smooth form that allows you to conserve energy.

  • Keep Your Momentum – Reduce sudden slowdowns that waste energy.
  • Smooth Transitions – A high braking score means less deceleration, leading to better endurance.
  • Land Efficiently – Minimize braking forces by keeping foot placement aligned with your center of mass.

Sway

Sway measures lateral (side-to-side) motion in your form. A lower sway score suggests that your form has excessive lateral motion while a higher sway score suggests that your motion is in alignment with the direction that you are running.

  • Run in a Straight Line – Reduce side-to-side movement that takes energy away from forward motion.
  • Improve Stability – A higher sway score means better core control and balance.
  • Stay Aligned – Detect excessive hip or torso motion that may be holding you back.

Endurance

Endurance measures how consistent your form is from the middle to the end of your session. A lower endurance score suggests that your form noticeably changes by the end of your run while a higher endurance score suggests that your form stays consistent through the end of your run. Endurance is only calculated when you are running for at least 9 consecutive intervals.

  • Maintain Your Form Longer – A high endurance score shows you’re keeping good posture and stride even as you fatigue.
  • Run Strong to the Finish – Identify when your form starts breaking down so you can push through effectively.
  • Improve Long-Term Performance – Build stamina by recognizing how fatigue affects your running mechanics.

Warmup

Warmup measures how consistent your form is from the start to the middle of your session. A lower warmup score suggests that your form noticeably changes by the middle

  • Ease Into Your Stride – A proper warmup leads to smoother, more efficient movement.
  • Reduce Injury Risk – Gradually improving form early on prepares your body for the full run.
  • Find Your Optimal State Faster – A high warmup score means your mechanics stabilize quickly, leading to better runs.