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Show Me Some Spine!


My first wearable project: SpineTracker

At the Quantified Self 2012 meeting at Stanford University, I met Esther Gokhale, an expert posture teacher who had been helping people with back pain.

As I studied her research, I saw how important the posture of the spine was in her methods, and I wondered if technology could be designed to precisely measure and display a person’s posture in real time. I had training and experience in engineering and medicine, but my electronic hardware¬† skills were decades out-of-date, and I’d never designed a wearable device. To her great credit, Esther decided to give me a chance, and Wearable Health Labs LLC was born.

During this saga, I learned to design PC boards, have them fabricated, place tiny surface mount components using a forceps and microscope, and reflow solder the boards using a $10 hot plate and homebrew temperature controller. Then I tried some primitive Computer Aided Design (CAD) software to design prototype enclosures to be 3D printed. And finally: coding firmware for Bluetooth radio modules and software for laptops to receive that data wirelessly (I had not yet learned to write smartphone apps). After 5 years, many prototype iterations (shown in the accompanying slide deck), and considerable help from other consultants, we had a finished product. The video below shows the Spine Tracker in use.