by Jesse Cannone CFT, CPRS, CSPN
With obesity and disease increasing dramatically, many fitness experts
are recommending walking for weight loss and fitness. Some are even going
so far as saying that walking is the best way to burn fat and lose weight.
I strongly disagree with this and am going to show you why walking is NOT
effective at burning off body fat.
Yes, you read that correctly...
Walking is NOT effective at burning body fat and if your goal is fat
loss you might be wasting your time. I am not saying that walking is not
beneficial, I am saying that if fat loss is the primary goal, there are
far better choices that will deliver far better results.
The primary benefits of walking are increased blood flow and circulation,
improved recovery, and a strengthened immune system. There are several
reasons why walking in not the best choice when it comes to fat loss. Here
are just a few:
1. Walking does NOT burn a lot of calories
The lower the intensity of the activity or exercise the smaller the
number of calories burned per unit of time. For example, you can burn more
calories in 15 minutes of bicycling at a high intensity level than you
can in 45 minutes of easy walking.
2. Walking does NOT result in a large increase in metabolism
Another downside to walking is that because it’s generally low intensity
it results in only a small increase in metabolism that will only last approximately
1-2 hours after the walk. On the other hand, metabolism increases are larger
and last longer (4-24 hrs or more) when you perform high intensity cardio
workouts.
3. Walking does NOT deplete muscle glycogen
Low intensity exercise like walking does not deplete muscle glycogen
levels and therefore, later that day if you have excess calories they will
likely be stored as body fat whereas if you deplete the glycogen the excess
calories will primarily be stored in the muscles.
So why then do so many fitness and health experts recommend walking
for weight loss? One reason is that people don’t want to hear that they
have to work hard so they figure some activity is better than none. Another
reason is that the body burns more fat for fuel when exercising at an easy
pace, however, the total amount of energy used is so small that you end
up burning off little body fat. That’s also why when you choose the “fat
burning” program on your treadmill or bike it has you exercise at any easy
level. Yes, you’re burning fat, but so little that you’d have to exercise
at that easy pace for hours and hours each day.
High intensity cardiovascular/aerobic exercise is much more effective
in burning off the excess body fat. In fact, several studies have been
done to prove this. In one study they compared one group who did moderate
level aerobics for 45 minutes with another group who performed high intensity
workouts for 15 minutes. They did before and after fitness testing including
body fat analysis and found that the group who performed the high intensity
aerobics lost nine times as much body fat!
Want more proof?
Compare the bodies of a walker, marathon runner, and sprinter. If you
are not familiar with what a sprinters body looks like, it is very muscular
and has little body fat while on the other hand the body of a walker will
likely have the opposite, little muscle and more fat. The sprinter does
little or no low intensity exercise and does primarily short hard bursts
of work while the marathoner overtrains so much they burn off both the
body fat and the muscle and that’s why they tend to look almost sickly
thin.
So what should you do then if your main objective is to shed those
excess pounds of body fat?
Two things:
1. Perform some form of high intensity cardio 2-4 times per week
2. Stabilize blood sugar to minimize the storage of new fat
I know some of you by now are saying “I can’t do high intensity exercise,
I have a bad knee” and don’t worry, I have a solution for you. The good
news is that high intensity is all relative to you and your current fitness
level. For example, fast walking up and down hills may be high intensity
for you... it all depends. So don’t think that you have to start running
or something like that. Just slowly start to increase the intensity of
your cardio workouts while also maybe decreasing the time because you can
either work hard or you can work long.
Also, you can make almost any activity or exercise high intensity....
here are a few examples:
· increase your speed
· use an incline or hills
· increase resistance
· perform intervals ( the most effective method)
Obviously, some exercises/activities or better suited than others but
the point is if you want to burn more fat and make your workouts as productive
as possible you need to increase the intensity.
To learn more about high intensity cardiovascular exercise please check
out the following articles:
· Forget the Fat Burn Zone - http://www.achieve-fitness.com/forget.htm
· In Search of the Ideal Aerobics Routine - http://www.achieve-fitness.com/ideal.htm
· Heart Rate Guidelines - http://www.achieve-fitness.com/cardio.htm
Be sure to also check out my Burn Fat FAST! ebook and audio program
here: http://www.burn-fat-fast.com
- it covers everything from cardiovascular training to strength training
to nutrition and more.
As with any changes to your fitness program be careful and don’t over
do it. Just because high intensity workouts burn more fat, don’t think
that you’ll get even better results by doing it everyday - that will quickly
lead to over-training and a loss of muscle which will only make it even
harder to burn off the fat.
So if your primary goal is fat loss, don’t waste your time walking
and instead focus on progressive, high intensity cardio to maximize the
effectiveness of your workouts.