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?
6 Crossfit workouts to do at home I love this Crossfit stuff. So much better than all that garbage weight stuff that is so limiting.Crossfit continually moves one away from being limited. Exercise,fitness and health,He