Saturday, May 28, 2011
My heart rate monitor (HRM) acted funny earlier this week and it kind of scared me. Also, I have a head cold and didn't feel great. So this is the first week in months I am not over the 1800 calories I committed to burn each week.
Today I went to my Weight Watcher meeting. I was up a pound, but still in my range, and I think and hope it is just a fluctuation. The meeting was about overcoming exercise excuses and I decided it applied to me.
After the meeting I went straight to the running store where I bought my HRM. They assured me that my heart rate DID NOT spike to 220; the HRM was malfunctioning. They told me to wet the strap better and tighten it more. I did and my heart rate feedback made sense this workout. Whewwww!
According to the HRM I burned 360 calories in my 55 minute workout. The treadmill showed a burn of 441, despite the fact I put in my correct weight and age. When I put my distance and time in SparkPeople it only showed about 280 calories burned. I suspect that is because I ran at 6mph about half the time, but walked really slowly some of the time. So I don't 100% trust my HRM, but I suspect it is correct on this calorie burn.