Someone needs a fact checker. This math is so wrong. 1000 jumping jacks is only 500 calories burnt. That's only the calories of one pound of fat, 3500 calories. To burn 1 pound do 7000 jumping jacks. That sounds a bit more reasonable, eh?
not really sure how this is calculating 7000 but I will do some jacks lol Jumping jack challenge. Doing 7000 jumping jack burns enough calories to lose a pound. Spread that our over a week and lose an extra pound.