Thats pretty cool. i guess we feel burn more because we burn more when we running because we cover more distance in less time. For me exercise is about the time I have. If I run fir 30 mins as opposed to walking fir 30 mins im gonna burn way more. So I opt for running if I can. Working smarter with my time.
Thanks for sharing your experiment.
RE: Comparing 1km walking to 1km running