I weigh 174 today. I will exercise today, but not all out. I am going to a school track to walk. It is 400 meters per time around. So I will go at least four times around. Nice since there are no stop lights, and danger walking on the side of a busy road. I wonder why my weight is going abnormally up and down?

I agree that “all over the map” is not that large of a range. The only time calories burned changes for me in a significant way is when something changes in even a more significant way. This does not happen much. So my calories burned usually goes from a bit lower than 100 to 110, which is not that much different than those charts. By the way, that watch of mine tells me I am in “poor” health. Compared to what? An athlete? Anyways, even though not entirely accurate for me right now, those charts are still usable in place of a sophisticated watch. I really do not need any more accuracy for my purposes. I am not training for a marathon. So much for needing my watch. It is a luxury item now.

I also want to mention that you seem to be doing well with those web services that allow you track your efforts in different ways without an expensive watch. Probably even more accurate at lower speeds than my watch. You can even graph your performance. All what one really needs is a phone that can count steps. Paddling more consistently at a high rate is a good idea. I find that I need to do this for my walking. It can sometimes go up and down for me.