Exercise

Why you should try to burn fewer calories, not more

Burning calories is a bankrupt concept.   And paying attention to how many calories you burn is as utterly bankrupt as trying to eat healthy by counting calories.

In the CBS piece about our barefoot running event, they suggested that a benefit of barefoot running is that it burns more calories.  Not only does this miss the entire point of natural running (a healthier stride, less injury), but it is factually wrong.  Research by Dan Lieberman up at Harvard (and others) have shown that barefoot running is more efficient -- i.e., you expend less energy for a given distance.  This is because, in part, you actually use your arch to store your momentum and release it in your next stride.  So if you run properly, the end result will be to burn fewer calories, not more.  And that's a good thing.

This is true for other movements too, not just running.  For any given exercise, you should seek to expend as few calories as possible.  Don't get me wrong, you want some big workouts where you burn through a bunch of calories.  That's why I say "for any given exercise".  But for that specific workout, you should seek to accomplish it as efficiently as possible.  That means good form.  No wasted movement.

Good form allows you to do more with less.  Athletes understand this.  Good form allows you to:
  • hit a golf ball further and more accurately with the same or fewer calories
  • hit a baseball out of the park with the same or fewer calories
  • throw a football further and harder with the same or fewer calories
Or say that you're in the wild on a persistence hunt.  You don't know how long the hunt will last -- 2 miles, 5 miles, 10 miles.  If you're successful, you'll have more work ahead of you to butcher the animal and possibly carry it some distance.  If you're not successful, then you still have some work ahead of you.  Due to the uncertainty of life in the wild, you want to accomplish your objectives while conserving as much energy as possible, husbanding your resources, and being more efficient.  For a given objective, you want to burn as few calories as possible
 
So the next time you hear someone say that an activity is a great way to burn calories, alarm bells should go off.  Remember that whenever there is an external goal -- like in sports or life in the wild -- there is a desire to expend fewer calories for a given motion.
 
It's not about counting calories.  It's about moving and exercising in the right ways.  It's about eating the right kinds of foods.  It's quality, not quantity.

Workout Anywhere #24: The Hotel Rooftop

With the right mindset, you can find a good workout anywhere.

I was at a wedding in Chicago this weekend.  The hotel had a nice gym (by conventional standards), but I had forgotten to bring VFFs or sneakers.  And of course, they don't allow people to work out barefoot.  So I did some laps in the pool, then went out on a sun balcony and improvised my own CrossFit-style workout.  I used different pieces of furniture for box jumps and uneven push-ups, and then did some squats, burpees, and some ab work.  A few circuits of that hit the spot.  Plus, a stunning view of Chicago, fresh air, a nice breeze, and no rules on footwear.
 
Finished, I went back into the pool area.  A hotel employee walked past me and out on the balcony, apparently looking for whomever was jumping on furniture on the roof.  He went that-a-way, sir, and I got a good look at him: no beard, short hair, very clean cut, wearing shoes.
 
Another benefit to high intensity, short duration workouts: you're done before the authorities notice and can come tell you to stop.
Footnote: 

(Photo credits: Lily Harrington)

It's hard to sprint on a treadmill

Ever notice that it's nearly impossible to sprint at max speed on a treadmill?

This week I wrote about how refrigerator design reflects (and influences) what we eat.  Well, so too with our gyms.  The rows and rows of treadmills and ellipticals are a sign of our chronic cardio habit -- and the treadmill itself reinforces the habit by making it hard to do anything other than jog in a straight line at a moderate pace.  Spend too many years in a gym and you almost forget that sprinting is even an option.

I actually sprint on a treadmill sometimes.  Other people in the gym get nervous because nobody ever sprints on a treadmill.  There must be rules against such a thing!  They get worried that I'll wipe out.  And I do hold back just a little, just in case I don't find the Stop button on the first try.  (But only a little.)

Probably better to just go to the park and do some sprints.  Of course, I rather enjoy blasting the zombie joggers out of their treadmill stupor.

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