SACH-SAWCH

Build two AFOs (per volunteer) that can be finely adjusted degree by degree in the range of 'functional dorsiflexion' as it was called, plus or minus 5 degrees. Monitor cardiac output, O2 consumption, CO2 production and also take it outside to uphill and downhill driveways, and to the park on the walking and running paths and on grass all with fine GPS spatial tracking sensitive to height changes. Numbers numbers numbers... but nothing we didn't already know. Hills are harder & require more energy. “Functional dorsiflexion” is a real thing – a sweet spot, where energy loss is least. Basically the arc traveled through stance has to be near symmetrical to a vertical midpoint line. The apex the of that arc traveled by center of mass is well below the floor. What happened to Inman's sine wave?

Warning: Proceed at your own risk. Geek speak begins here!