I wore a Body Bugg thing on an EPIC a couple years ago. I burned 13,000 carlories according to it. Not sure how well they work, my wife swore by it and wanted me to try it. I hated the way it dug into my arm so I never used it again.
I was doing a day hike of Forester Pass from Roads End that went 23 hours and 42 minutes. It did show that some of the hardest work I did was about the time we were pushing to the pass and the last 1/2 hour - which was a full out run.
I took a scale with me to the trailhead a few times. Compared my pre and post weights. Biggest loss was 11 pounds in 25 hours of hiking. Mostly water weight I know............DUG
