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    BRIARD   14,365
10,000-14,999 SparkPoints

Running App Test 2

Friday, July 05, 2013

After taking a look at the first round of tests on the running apps on my iPhone (
), I corrected my weight on all of them and then did a run at a local running path that has mileage markers every quarter mile. It is a 3.5 mile loop. Here's the new data:

As you can see, there is still a lot of variation in distance but Runkeeper is the most accurate if we assume that the mileage markers on the path are correct. I've been assuming that Runkeeper has been underestimating my run distance; maybe in fact all the others are overestimating. If that's the case, I'll try to increase my distance when using Zombies, Run! (my primary running app) so that I'm getting the full distance I'm trying to go. It may not seem like much, but if I'm trying to get ready for 5ks and 10ks and Z,R! is consistently overestimating my distance, those races are going to feel harder than I'm prepared for.

The calorie counts are all over the map again although correcting my weight did seem to tighten up the range a bit. Still, it goes to show that calorie calculation is very inexact. I trust my heart rate monitor the most, and that number is right in the middle of the range which seems reasonable to me.

I may try to do these same tests a couple more times, but right now I'm leaning towards using Runkeeper for distance calculation and my heart rate monitor for calories.

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