Weight / Fat loss

Seeing how far you can run in 45 minutes would probably be an entertaining test. And one that gives you an element of competition as you can do the same next week and should see some marginal gains, works most of the body out. No idea if its particulaly efficient for loosing weight, works for me though.

I willing to bet for a given weight and fitness. Constant running at the maximum pace said person could maintain for 45mins. Would burn the most calaries.