Dave's ESL Cafe's Student Discussion Forums

[alex_007]

how do u think ? haha
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Don't try so hard, the best things come when you least expect them to.

[admiral]

http://www.novafeel.de/fitness/kalorienverbrauch.htm Sorry that I always link German sites.

But however, you don't have to know German. There it says:

Having sex for 15 min actively/passively: 90/41 use of calories
for 30 min: 180/82
45 min: 270/123
60 min 360/164

running for 15min (1km in 3,5 min): 325
30 min: 650
45 min: 975
60 min: 1300

So, I think running is more effective for your traiing/ if you want to loose fat.