Dec 25, 2012

Walking vs. Other Activities: calories expended by a 150-pound person per hour

Race walking: 600
Uphill walking, 10% incline (3 mph): 500
Walking, 15-lb. backpack (4 mph): 410
Brisk walking (4mph): 350
Slow running (5 mph): 550
Recreational tennis, singles: 430
Swimming, slow crawl: 400
(The Wellness Guide to Lifelong Fitness, by Timothy White, PhD., and the editors of the University of California at Berkeley Wellness Letter)