I just thought i would share this info i found in a book. Here's roughly how many calories a 175 pound man will burn during an hour of these activities. Bicyling 6mph : 281 Bicycling 12mph : 476 Cross-country skiiing : 812 Jogging 5.5mph : 857 Jogging 7mph : 1067 Jumping rope : 751 Running in place : 753 Running 10mph : 1488 Swimming 25 yard/min : 320 Swimming 50 yards/min : 581 Tennis, singles : 463 Walking 2mph : 278 Walking 3mph : 371 Walking 4.5mph : 511
http://www.nutristrategy.com/activitylist.htm That website lists lots of caloric expenditure for activities/time for a few different bodyweights.
http://www.msnbc.msn.com/id/6817885/ There's a calculator for it there. It will no doubt depend on the position, the weight of either partner, the vigorousness of the thrusting, and other variables - making it difficult to accurately calculate. You'll obviously burn more calories doing it like this... This content is protected ...or like this... This content is protected ...than like this... This content is protected ...or this. This content is protected
Well, with that first position you might be able to combine it with roadwork. I imagine you'd burn tons of extra calories lugging around the extra 50 or more kilograms. The second position is also doable - though your broad will develop very strong and manly shoulders if you do it too much.