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From Fellrnr.com, Running tips
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=Metrics=
RunScribe currently measures a number of key metrics.
* '''Symmetry'''. This is a composite based on several metrics comparing left and right legs. It shows symmetry of efficiency, shock, and motion in one graphic. These three values are themselves combinations of other metrics. <br/>[[File:RunScribe symmetry.png|none|thumb|500px200px|RunScribe's simple visualization of symmetry.]]
* '''Efficiency'''. This is a combination of shorter contact time, longer flight time and a higher step rate, which RunScribe considers indicating greater efficiency.
* '''Shock G's'''. This is the combination of braking and impact forces, with RunScribe suggesting typical ranges of 6-29 G's.