By Wini Linguvic
If you want to get more exact
with your precision cardio, you can use a heart rate monitor in addition
to evaluating your rate of perceived exertion. The heart rate monitor will
tell you exactly what your heart rate is as you're exercising, which means
you can then increase or decrease your intensity to get a precise workout.
Monitors are available at sporting goods stores and some department stores.
First, you'll need to figure
out the heart rate range that you should be working at. The best way to
do this is to get tested by an exercise physiologist. If you don't want
to do that, you can get a pretty good estimate by calculating your maximum
heart rate and then calculating certain percentages of this rate to work
at for your warm up and cool down, your moderate pace, and your interval
pace. This will be a good starting point, though keep in mind that this
calculation is based on the "average" person -- something that none of
us is!
To estimate your maximum
heart rate, subtract your age from 226. (Men would subtract their age from
220.)
226 - your age = age-adjusted
maximum heart rate
Now, take your age-adjusted
maximum heart rate and calculate the following percentages for the various
parts of your workout.
· 60 percent for your
warmup and cooldown
· 65 to 75 percent
for your moderate pace
· 75 to 85 percent
for your vigorous or interval pace
For instance, a 40-year-old
woman's estimated maximum heart rate is 186 (226 - 40 = 186).
· 60 percent of her
max = 112
· 65 percent of her
max = 121
· 75 percent of her
max = 140
· 85 percent of her
max = 158
Keep in mind, however, that
this calculation can be off by as much as 15 beats, so use the rate of
perceived exertion as well. Also take into account that your heart rate
can vary depending on which activity you choose. Different activities use
different skills and muscle groups, so an experienced swimmer will have
a lower heart rate swimming than she does when running. Keep that in mind
as you vary your cardio choices. Also, some exercises that you do while
sitting down, like riding a recumbent bicycle, won't get your heart rate
as high as those that you do while standing, such as walking hills outside.
So use your heart rate monitor and evaluate your rate of perceived exertion,
but also learn to listen to your body.
Reprinted from: Lean, Long
& Strong: The 6-Week Strength-Training, Fat-Burning Program for Women
by Wini Linguvic © 2005 Wini Linguvic. (January 2005) Permission
granted by Rodale, Inc., Emmaus, PA 18098. Click
here to purchase Lean, Long & Strong.