HKR Question

timer Asked: Feb 1st, 2013

Question Description

I’m working on a Social Science exercise and need support.

Two men, Chris and David each weighing 65Kg have been running together 5 days a week (at 8km/
hr for 40 minutes) for several years. As a New Year’s resolution they both decide that they will work 
harder at losing weight. Chris decides to double the distance he runs every day and keep to the 
same speed, while David decides that he will increase his speed to 10km/hr and run for the same 40 
min/day as before. At the end of 6 months, who has lost more weight, and by how much? What 
conclusion can you draw about exercising for weight loss? Is it better to increase duration of 
exercise or intensity? 

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