thats not exercising. thats called working. most of us do that stuf 40hrs a week.
heh, I often have the same thought when people post stuff like that. It seems like Eric had a decent workout though.
I know that I used to work as a mover and recently I helped someone move from one third floor walkup to another doing almost 20 trips each with super heavy boxes and furniture. This really isn't a 'workout' in the way I feel like vomiting after doing 15 minutes of non stop russian step ups, box jumps, overhead squats and weighted long jumps....which is all I really need a few times a week..whereas constant physical work yields way more mediocre results.
There were some interesting debates in the past about this. Personally I believe this is one of those things where human knowledge really trumps what is actually going to happen in a real world setting - natural, neolithic, or modern work. Even natural exercise or using natural objects - which can be great - one has to increasingly push them into some abstract (doing reps etc...) in order to really stress the muscles and cardio etc..in the necessary fashion. Of course just being active is a big bonus...just not the most effective.
The methods of work and necessity in nature would require and produce fit, agile and relatively strong people, yet when trying to become more fit, agile and strong one gets the most effective results focusing on the methods that
concentrate on those things without all the things that are really un-relevant as far as the physical human body is concerned (the actually prey from the chase etc..)
I'm sure people that tended fields and such without sophisticated machinery were perhaps stronger than the average person of today that 'works out' and stone agers were possibly far stronger but that often enough would be due to their health and vitality rather than 'exercise' methods.
I personally think its good to strive to have the most natural kind of movements that also capitalize on the knowledge we have in order to work out less and rest more - for better and safer results.