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Is it true that you burn the same calories walking as running as long as you cover the same distance? Thanks, Barb          I don't know about recent studies, but this issue was resolved in the 70-80s. I used to post this often, but I guess it's time to do it again.         Walking is the *most efficient* way to bi-pedally locomote

Is it true that you burn the same calories walking as running as long as you cover the same distance? Yes there are extremes in calorie burning for walking rule of thumb is 4 mph and above starts over taking running (for set distances not time) as a calorie burning exercise I looked up a bunch of different calorie calculators on the web and naturally got somewhat different results from each of them. Also, there were very few which would give numbers for walking above 4 mph. But these are roughly the values which they provided - all numbers are calories/mile for a 150 lb person: running (any speed): 115 - 120 walking (2-4mph): 85 - 100 walking (5mph): 110 - 115 walking (6mph): 115 - 125 Only one source actually took walking up to 7 mph, and it cited a figure of 136 cal/mile for the 150 lb person! - Bob C.

Is it true that you burn the same calories walking as running as long as you cover the same distance? Yes there are extremes in calorie burning for walking rule of thumb is 4 mph and above starts over taking running (for set distances not time) as a calorie burning exercise I looked up a bunch of different calorie calculators on the web and naturally got somewhat different results from each of them. Also, there were very few which would give numbers for walking above 4 mph. But these are roughly the values which they provided - all numbers are calories/mile for a 150 lb person: running (any speed): 115 - 120 walking (2-4mph): 85 - 100 walking (5mph): 110 - 115 walking (6mph): 115 - 125 Only one source actually took walking up to 7 mph, and it cited a figure of 136 cal/mile for the 150 lb person! - Bob C.        Where did you find your numbers?  I'd like to take a look myself.         Apropos of your numbers:        I forgot to mention that in walking, the calorie expenditure (per minute) varies as approx. the square of the speed, whereas in running it increases approx. linearly.  This is a nice reflection of the biomechanical mechanisms at work:           Walking is basically the motion of the legs like a pendulum, which has a natural oscillating frequency. At the self-selected step mentioned above, the legs are working at just this natural frequency, and the calorie burn is thus a minimum.  At higher frequencies (faster walking), the oscillations are now *forced*, which takes energy, which is proportional to the square of the amplitude of the oscillation, and linear with the frequency.  Actually, the leg is more like a compound pendulum, but the principles remain essentially the same.         THUS,          The figure for 7 mph might appear out of line, but is consistent with the non-linearity of calories in walking.  If the numbers are from different sources, it's hard to grok a trend, unless you have large amounts of data.         This pendulum business actually sheds some light on Tony Little's near-useless contraption, and also Leslie Sansone's walking fraud, but I'll save that for another post.         Tony looks cute, what with his ponytail wagging out of the back of his _base_ball cap, but I think the main purpose of the cap is to conceal a receding hairline.

I looked up a bunch of different calorie calculators on the web and naturally got somewhat different results from each of them...        Where did you find your numbers?  I'd like to take a look myself. If I remember correctly, I used AltaVista (http://www.altavista.com) to do a search on calorie calculator , then searched through the results to see which looked useful, then went to those sites the find the very few that actually were useful. But I never did find a single source which I liked enough to bookmark. I also got some numbers of out a book on walking which I have at home ( Walking by Casey Meyers). - Bob C.