Diet advice-8 weeks to lose some bodyfat

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I think it is impossible to sprint for forty minutes straight so either you are doing some interval sprinting or running as fast as you can for forty minutes. I think that if you do some interval sprinting, ex:sprint for a minute and then run for a couple of minutes, then that is not too bad for weight loss. However, I don't think that forty minutes of all out running is good for maintaining LBM. Here is a good site to learn out many calories you can burn from drinking ice water. It's pretty cool. http://www.howstuffworks.com/question447.htm

Interval training for any cardio, bike, treadmill, eliptical, etc is in my opinion, the most effective way to go.