The Swiss Federal Institute of Technology’s results speak in favour of Joya
- In the first heel-strike phase, the cushioning effect of the Joya sole reduces the forces affecting the body considerably (by a factor of 2 to 5) compared with walking/running barefoot.
- Joya produces a far greater range of motion as the sole’s soft, supple structure makes it very yielding. When we walk barefoot on an uneven, natural surface (on sand, uphill, downhill, etc.), the range of motion is also naturally larger. The soft, supple structure of the sole makes it likely that more effort will be required, more energy burned and the muscles will get more exercise.
- In Joya shoes, motion graphs generally follow a smoother track (less jerky) than in conventional shoes.
- No difference was found between the Karl Müller shoes and the round-sole shoes when it came to upper body posture.