Interbike 2012
We are preparing for a trip to Las Vegas where we are attending the 2012 Interbike Conference www.interbike.com . There will be a stationary bike right in our booth so interested athletes and trainers can give the Moxy monitor a try. They will be able to perform a brief exercise ride, then take a copy of their Moxy graph with them. The show is next week, and I will be there participating with the Moxy team on Thursday and Friday, September 20 and 21.
Treadmill Validation (informal)
Though it's not "officially" a validation study, there is something to be learned from Larry's work on a treadmill. My experiences with Moxy so far have all been "athlete" paced, so the athlete becomes a variable in the output of the device - which is good, but for the purposes of validating the Moxy SmO2 data, we need some data that isolates the two. Below is an exerpt from the Moxy Developer Forum at www.moxymonitor.com as posted by Larry, one of our engineers, and an avid runner. Check out the graph!!!
Here are the results from some interval training I was doing on the treadmill. My normal running pace is a 10 minute mile (6mph). So I set the treadmill to 4mph for the resting and 7mph for the working interval. Each interval is 2 minutes long for a total of 30 minutes. The recovery interval starts at 30 minutes and is 2mph.
The sensor is placed on the upper thigh of the left leg over vastus lateralis muscle.
You can see the SmO2 drop to around 30 during each working interval and come back to around 50 for each resting interval. When starting with the resting interval at time 0.00 minutes you can see the SmO2 dropped lower (mid 30’s) than the other resting intervals. Maybe I wasn’t warmed up yet. The ending recovery then went above 70.
Neural Adaptation
I learned something very interesting this week. A friend of mine, an avid recumbant bike rider, purchased a "street strider" www.streetstrider.com . On his first outing (and this is a guy who does 20+ miles a day on his recumbant) he was totally spent, pooped out, with only 2 miles on the bike. Within about 2 weeks, he's finding it is still a tough workout, but he's already able to get in 6 miles without stopping. His question; how could I have improved that much in such a short time? The answer: Neural Adaptation. Simply put, your body adapts to the environment, the muscles learn how to coordinate the movements, and the effort decreases. He's certainly getting into better shape, but that can't explain that much improvement. One example I like is how the body changes the stride, while walking, to adapt to up hills, down hills, and flats. We may not notice it, but we do adapt.
Thanks again for reading my blog. Hope the information is helpful.
Don't forget to say a prayer, pause for a moment, or simply remember all the brave souls and innocent victims who perished 11 years ago in NYC, Pennsylvania, and at the Pentagon.
Stu
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