Since then, Niemi has been working to make that technology into a product people can use. Original prototypes included huge, bulky battery boxes clipped to the shoe. Now, the insole fits into shoes. It can be inductively charged — no cords or wires needed, like those pads you just set your phone on to charge — and a mobile app controls the vibrations’ amplitude and reports battery status.
Despite the progress, the insole isn’t commercially available yet. The Wyss Institute is discussing licensing with different companies, but the question is whether to partner with a traditional footwear company or a medical device company. Niemi believes the product should have FDA approval, a process familiar to medical device-makers, but footwear companies would likely provide better marketing.
Regardless of which route the insole takes to consumers, Niemi believes it’ll have the right look. “When we finally put it on the table, everyone looked at it and said, ‘That looks like a boring insole,’ ” Niemi says. “That’s exactly what we’ve been trying to do.”
[This article originally appeared in print as "Sure-footed Progress."]