Striking A Balance
What's
your Body Mass Index?
We
all know that our nationwide weight
epidemic has reached epic
proportions. As a society, nearly
two-thirds of Americans are
overweight, and nearly one-third is
obese. And while maintaining a
healthy weight may seem to be quite
a challenge, once you've made the
decision to lose weight, knowing
your own Body Mass Index
measurement, and finding a target
BMI to set your sights on, might be
a great place to start.
|
What's Your BMI?
Are you at a healthy body
weight? Find out now.
The Body Mass Index (BMI)
is a general guide to
determining if those extra
pounds translate into a
health risk for you. The
higher your BMI, the greater
your risk of developing
various health problems.
You can find your
BMI in two ways:
•
Click here for the Body Mass
Index Chart and follow
the directions to look up
your BMI number.
OR
• Use the following
formula to determine your
BMI:
BMI = [Weight in pounds /
(Height (in inches) x Height
(in inches)] x 703
Once you've determined
your own BMI number, see
where you fall: |
BMI below 18.5
BMI 18.6 – 24.9
BMI 25 – 29.9
BMI 30 – 39.9
BMI 40+ |
= Underweight
= Normal
= Overweight
= Obese
= Extremely Obese |
|
In general, the Body
Mass Index measures your weight in
relation to your height. Once
calculated, a BMI of 18.5 to 24.9 is
considered healthy; a BMI of 25 to
29.9 is considered overweight; and a
BMI of 30 or more is considered
obese. (See sidebar on the right to
calculate your own BMI measurement).
By identifying your own BMI, you can
not only evaluate where you're at,
but also more accurately target a
good weight loss goal for yourself.
Sure, it's true—we do
live in a culture in which fast,
convenient, and large are often the
main descriptors of how and what we
eat, but experts contend that weight
gain is mainly the result of an
"energy imbalance" over a long
period of time.
Simply put, an energy
imbalance is when the number of
calories consumed by an individual
outnumbers the number of calories
used by him or her in a day; in
other words, if you eat more than
you burn, you're going to gain
weight. Conversely, if you burn more
than you consume, you'll lose
weight.
Another way to look
at it is like this:
One pound = 3500
calories
So to lose a pound,
you must burn 3500 more calories
more than you take in. Maintaining a
healthy weight and BMI is all about
balancing what you consume with what
you burn—in essence, the
relationship of diet to exercise.
Energy
In, Energy Out
|
Startling Stats |
|
Here
are the latest obesity
stats on Americans,
based on studies ending
in the year 2000.
However, by now, more
than four years later,
experts say totals have
likely risen
significantly higher.
33.5%
of American adults are
a healthy
weight (BMI
less than 25).
64.5%
of American adults are
overweight
(BMI more than 25).
This includes
those who are obese.
30.5%
of American adults are
obese
(BMI more than 30).
15.3%
of American children
(ages 6–11) and 15.5%
of American
adolescents (ages
12–19) are
overweight.
(An additional 15% of
children and 14.9% of
adolescents are
currently at risk for
being overweight.)
31.8%
of American adults get
regular leisure-time
physical
activity
(defined as light or
moderate activity five
times or more per week
for 30 minutes or
more, and/or vigorous
activity three times
or more per week for
20 minutes or more).
About 10% of adults do
no physical activity
at all.
|
|
On The Rise |
| • |
The
prevalence of obesity
has steadily increased
over the years among
both genders, all ages,
all racial/ethnic
groups, all educational
levels, and all smoking
levels. |
| • |
From
1960 to 2000, the
prevalence of overweight
(BMI 25-30) increased
from 31.5 to 33.6% in
American adults. |
| • |
The
prevalence of obesity
(BMI more than 30) from
1960 to 2000 more than
doubled from 13.3 to
30.9%, with most of this
rise occurring in the
past 20 years. |
| • |
From
1988-2000, the
prevalence of extreme
obesity (BMI above 40)
increased from 2.9 to
4.7%, up from 0.8% in
1960. |
| • |
In
1991, four states had
obesity rates of 15% or
higher, and none had
obesity rates above 16%.
By 2000, every state
except Colorado had
obesity rates of 15% or
more, and 22 states had
obesity rates of 20% or
more. |
|
Source: National
Institutes of Health.
Data based on NHANES
1999-2000. Population
numbers are based on the
U.S. Census Bureau
"Census 2000." |
|
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You can start working
toward a healthy balance of diet to
exercise today. One way to manage
that balance is by thinking of the
things you eat in reference to what
it will take to burn them off. For
example:
-
One small cookie
(50 calories) is equivalent to
walking at a brisk pace for about
10 minutes. However, if you go for
the larger, gourmet cookie you
often see at the mall (200 more
calories), you'd also need to rake
leaves for about 40 minutes to
burn off that one "treat."
-
If you decide to
go for that jelly doughnut sitting
in the office break room (300
calories), then get set to walk
about one hour at a moderate pace
to wear it off.
-
Thinking of
ordering the fast food "value"
meal at lunchtime? If you choose
the double cheeseburger,
extra-large fries and 24 oz. soft
drink (and note, these are not
even the "biggie" sizes), you'll
be taking in about 1500 calories,
and would need to run for about 2
½ hours at a strong pace to burn
off just that one meal.
-
Want to lose 10
pounds by this time next year? If
you don't change anything else
about your diet except simply
cutting out one, 12 oz. can of
regular soda (150 calories) 5 days
each week, in 52 weeks, you will
have decreased your caloric intake
enough to lose 10 pounds.
-
Want to wear off
another 150 calories
each day? Try
doing these activities:
-
Washing your car
for 1 hour
-
Gardening for 45
minutes
-
Pushing a
stroller 1.5 miles in 30 minutes
-
Walking 2 miles
in 30 minutes
-
Raking leaves
for 30 minutes
-
Playing
volleyball for 45 minutes
-
Shooting baskets
for 30 minutes
-
Bicycling 5
miles in 30 minutes
-
Doing water
aerobics for 30 minutes
-
Jumping rope for
15 minutes
-
Running 1.5
miles in 15 minutes
The opportunities to
balance your diet with exercise—to
regulate the calories you take in
and the calories you burn each
day—are endless. With a little
forethought and some elementary math
skills, you can easily identify ways
to lose weight, or to maintain a
balance once you've reached a
healthy weight. And through that
balance, you can maintain not only a
healthy BMI, but also a healthy
lifestyle for years to come. |