View Single Post
Old 02-06-2013, 08:00 PM   #63
NLBwell
Legend
 
Join Date: Jun 2004
Posts: 6,870
Default

A man burns about 100 calories per mile walking (flat surface). I've burned over 2000 calories practicing tennis in a couple of hours (basket of balls, so no stopping even to pick up balls). That would be about a 20 mile walk. I don't think 20 mile walks are very time efficient.
NLBwell is offline   Reply With Quote