As had been said for centuries and decades that one of the best ways of keeping fit and healthy are through having sex as a form of exercise. Not only is it enjoyable but also makes you sweat and requires a lot of energy. Which position do you think gives the best results and why? Or do you think all positions shed the same results and effort?
And apart from all the benefits it's free right? I don't have a position that I can say, this one is best and it was really a good workout, I think it's something that happens in the moment and cannot be defined.
I don't feel strained that much after any single position. But, a long vigorous night can make me feel like I'm starting to be an old man.
I think for me being a female It would have to be me on top that I feel gives me the most work out. Since I am doing all the work.
I would say missionary style is pretty enjoyable and also makes you sweat a whole bunch. If you're doing it right, pretty much any position should be making you sweat and should be enjoyable. For women I would say cowgirl or reverse cowgirl, any position where she is on top might require the most energy.
I don't think you should see sex as exercise, sex is sex. Would you have sex just because it burns calories? I don't think that is a good reason to have sex, it devalues sex, in my opinion. Sex will burn around 400 calories per hour. You could burn a lot of calories if you are having a lot of sex. Not that it is really important...
Almost any position can get you to lose weight. But it also depends if you are on the receiving or giving end most of the time. I think that sex is definitely a good exercise and can keep you committed to losing weight as it is enjoyable.