[GarvielLoken]

"anybody" = an office worker that has spent his life behind a desk. We are talking about farmers and craftsmen that has marched on foot for years with their gear. And now days we know that even our fastest runners train 80% of theri weekely training in a low steady state traingins, the kind of conditioning that increases the heart size, lowers the resting pulse and improves your ability to work after rest.

[IkmoIkmo]

And yet professional boxers regularly gas after 5 rounds of 3 minutes... Now add equipment, particularly armour.

Or look up a Judo match, particularly during tournaments. You can see these guys are often wrecked after a particularly long match, and typically matches last only a few minutes. Just see Judo matches in the last Olympics, guys who typically have 3 to 5 training sessions a day, 7 days a week, for 2 decades.