disclosure: rconrunning.com and I have raced a few ragnar relays together. one day, he sat me down, bought me a beer and some sweet appetizers at a local pub. During that sit-down he showed me the guts of an easy-to-use sensor that measures totalAcceleration (i.e, all three axes). I was curious enough to build him a tool that I thought might help dial in some signal processing parameters. this tool helped visualize the data from the sensor. the sensor data I saw was fascinating - so good, in fact, that I was able visualize and quantify L/R leg stiffness asymmetry in the best fit SLIP model coefficients at the heart of the tool that was developed. With that disclosed, I don't know the exact details of how g-count is calculated, so don't ask me. I'm kinda like
BASF -> I don't make a lot of the products you buy in the sporting goods industry. I make a lot of the products you buy in the industry better! ;-) haha.
With that said, Ryan (rconrunning.com) is good people. He's a runner. He's passionate. The sensor is cool, IMO.
I've been beta-testing it for the past few weeks (I'm on strava if you want to check all my data out) and recently did this quick and dirty experiment:
I've used the sensor with my refurb'd garmin 210 to identify and address some issues in my downhill running form as well.
Happy to share my experiences for those curious,
cheers,
-k
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Kraig Willett
http://www.biketechreview.com -
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