Here’s a first look at the Mac OS X application that comes with the Forerunner 305 GPS Runner’s watch. I can’t say enough good things about this product.
I suspect avid runners will immediately see the usefulness of all this data. Most often when you go running, there are highs and lows, dips and peaks in your energy levels. Is it hydration? Is it my breathing? Or am I just running faster or slower, or at a gradient?
This kind of data will answer most of those questions. It’s amazing. You can see exactly where your heart rate is, and Mph speed.
Here’s an example. A few months back I was doing a week of Bikram Yoga. As an added bonus, on some days I would do a double session, and go running *after* the bikram yoga. I found that my heart rate was elevated, to around 152 bpm all the time, and yet my running speed was actually slower than usual. It just amounts to general exhaustion. Another example, when it is extremely humid out, I go running, and bring extra water. I run slower, but find my heart rate stays high.
Most watches with a heart rate monitor just keep the min, max, and total for the run. So all that time in the middle you know nothing about. Here the watch is collecting hundreds of little data points, and syncing them to your computer when you come back home. Graphing the whole thing is like turning on a light in a dark room. Now you can see everything!