So I’m not uber fit, but I’m still fairly mobile. I sometimes like to go hiking and I will start early in the morning.
My routine is to do about one hour of hiking or walking, then drive to a new location (maybe 10-30 minutes of driving) then do another hour, then drive again, then another hour, etc. I travel at about 3mph with no backpack.
Usually by the end of the third hour, especially if on that third hour I am doing a lot of uphill hiking I am really worn out and can barely make it. If I’m not going uphill its not as bad though.
Is this due to a lack of cardio fitness, or the fact that I haven’t eaten enough? Like I said when I go I go in the morning, if I do eat breakfast it is usually under 1000 calories (online calculators say I burn about 800+ an hour hiking).
Shouldn’t my body be able to use muscle glycogen or fat stores to get me through?
Or is being able to do 8-10ish miles of hiking in 4-5 hours considered good?
If it is lack of calories (which is what I suspect, I think if traveling uphill I’m undergoing anaerobics w/o any external calories) is fast acting carbs the best thing to take with me (like sugary drinks) or do I want something like trail mix that has a lot of fat and protein in it?