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 its 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 dont 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. Thats also why when
you choose the "fat burning" program on your treadmill or bike it has you
exercise at any easy level. Yes, youre burning fat, but so little that youd
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 thats 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 cant do high
intensity exercise, I have a bad knee" and dont 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 dont 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. |