A Variable Stiffness Graded Shoe at Microscopic Level. Application Number 63/077,610, In Prosecution. (internal no. 7092)
- A midsole that progresses monotonically from soft to hard during the 0.3-second stance phase of gait.
- A shoe that provides good shock absorption at initial impact yet provides good running economy at push-off.
- A shoe that does not cause atrophy and deconditioning of your muscles and tendons leading to strain, tendinitis, and stress fractures.
Conversion, In prosecution (internal no. 7098)
PCT (internal no. 7099)