Your Fitness
Needs, Milestone By Milestone
I've worked with thousands
of women. Twenty-somethings to 50-plus career women. Anorexics and starvers
to bingers and bulimics. Top athletes to women who were so obese that they
could barely walk a block. For all of them, a customized fitness "prescription"
became an essential part of their self-care.
Although women of every age
reap tremendous physical and mental benefits from regular physical activity,
age is a factor in how much and what kind of activity their bodies need
in order to get fit, energetic, and strong. Here's a Milestone-by-Milestone
description of a woman's physical activity needs.
Milestone 1: Menstruation
to First Pregnancy
Women in Milestone 1, with
their surging estrogen and burgeoning breasts, hips, and thighs, typically
have 21 to 32 percent body fat, well within a healthy range. They can keep
this optimal level with regular physical activity. And because there's
evidence that heart disease and diabetes can begin to develop in adolescence
-- even childhood -- being active now, and staying active, can help protect
them from heart disease, cancer, and diabetes down the road.
The benefits of fitness extend
beyond physical health. Research shows that physical activity eases stress
and depression in girls and that girls who play sports have a more positive
body image and higher self-esteem than those who don't. For that matter,
girls who are active in sports are less likely to contemplate suicide than
girls who aren't; they tend to spend more time concentrating on their physical
accomplishments and the fun of teamwork than obsessing about their weight.
Another study shows that when preteens and teen girls get in just 30 to
40 minutes of exercise each day, they can lower by 30 percent their likelihood
of developing breast cancer later in life.
Milestone 2: The Reproductive
Years
Women don't get fat from
pregnancy. Their bodies simply are gaining the necessary reserves on hips
and thighs to fuel the extra 500 calories a day required for breastfeeding.
Women who enter pregnancy fit and stay physically active throughout the
pregnancy are less likely to gain excess weight, and therefore, they have
less to lose after they give birth. And being strong can definitely improve
your endurance for the marathon of labor!
Of course, once the baby
is born, a woman has to work to lose that excess fat, and the older you
are when you deliver, the harder it is. Then, amid kids, career, the partner,
and the whirlwind of everyday life, women in Milestone 2 face a most formidable
challenge: to make physical activity a regular part of their high-stress
lives. According to one study, being a mom cuts a woman's time for exercise
by at least 20 percent. But putting in that sweat time is essential.
Regardless of whether a woman
bears kids or not, beginning in her thirties, she normally loses 1 to 2
percent of her muscle per year, slowing her metabolism. She can even begin
to lose bone. Regular physical activity revs up metabolism, preserves muscle,
and slows bone loss.
It also safeguards her future
health. Regular moderate-to-strenuous physical activity reduces a woman's
risk for certain female cancers triggered by estrone, a type of estrogen
that increases with higher-than-normal body fat and is associated with
an increased risk of breast and uterine cancer. If you do regular physical
activity from 1 to 3 hours a week from your teens to about age 40, you'll
cut your risk of breast cancer by 20 to 30 percent. Four or more hours
a week can reduce the risk almost 60 percent.
It's pretty simple: Move
the weight, remove the weight, and reduce your risk.
Milestone 3: Perimenopause
and Menopause
Remember the way your body
morphed at puberty? One day you were a beanpole, the next an hourglass.
Well, once you hit 40, you're shape-shifting again. Although premenopausal
women gain fat in the lower body to nourish children, women in Milestone
3, whose reproductive years are drawing to a close, gain it in their upper
bodies. Think larger breasts, the emergence of back fat, weird little fat
pouches near your armpits that hang over your bra, and the menopot. Hot
flashes and other symptoms triggered by the swoops and dips of estrogen
only add to the fun.
However! There's a huge difference
between Milestone 3 women who are active and those who aren't. Women who
stay fit through these years of hormonal fluctuations are less affected
by the typical symptoms of menopause. They pack more lean muscle, have
faster metabolisms, and can control their weight and body fat better. Physical
activity also helps them control their blood sugar, blood pressure, and
blood cholesterol, which become an issue for many women in this Milestone.
Milestone 4: Beyond Menopause
The goal of Milestone 4 women
is to retain their functional independence and prevent disease. To do it,
they need to pay special attention to achieving and maintaining adequate
endurance, strength, and flexibility.
As a result of declining
sex hormone levels, lack of physical activity, chronic stress, and overeating,
women in this Milestone are at high risk for accumulating Toxic Fat. That's
bad news, because apple-shaped women are at greater risk of heart disease
than are pear-shaped women, who carry their weight on their hips, thighs,
and bottoms. This extra weight can lead to chronic knee and back pain,
which limit a woman's ability to get around.
Hormonal changes can also
cause bone loss, raising a woman's risk of osteoporosis. In a recent study
of nearly 90,000 women ages 50 to 64, almost one-third had bone density
low enough to run an increased risk of fracture.
Happily, it doesn't take
much physical activity to keep women in this Milestone fit and healthy.
Weight training can build muscle, preserve bone, and improve strength,
and simple walking can keep hearts beating strong. In one study, 73,743
women ages 50 to 79 were asked about their exercise habits, and those women
who walked briskly or who engaged in more-intense exercise at least 2 1/2
hours per week were both 30 percent less likely to develop cardiovascular
disease than women who didn't do either.
I recommend that women in
all Milestones -- especially 3 and 4 -- seek out an experienced trainer
who specializes in working with women 50 and over. Most midlife women have
never lifted weights, and they need guidance to reduce the risk of training-related
injuries. The price? Reasonable, and you need only a few sessions to learn
proper form and technique, followed by perhaps monthly check-ins to make
sure you're progressing well.
About the Author:
Pamela Peeke, M.D., M.P.H.,
F.A.C.P., is a clinical assistant professor of medicine at the University
of Maryland School of Medicine, a Pew Foundation scholar in nutrition and
metabolism, an adjunct senior research fellow at the National Institutes
of Health and the author of the best-selling book, Fight
Fat after Forty. A regular contributor to Good Housekeeping, Dr. Peeke
is frequently quoted in O magazine, Shape, Vogue, Fitness, Glamour, and
Redbook. She is the chief medical correspondent for Discovery Health TV
and the spokesperson for its National Body Challenge. She appears as an
in-studio expert for CNN and the networks. She maintains her private practice
in Bethesda, Maryland. For more information, please visit www.drpeeke.com
Reprinted from Body-for-LIFE
for Women: A Woman’s Plan for Physical and Mental Transformation by
Pamela Peeke, M.D., M.P.H., F.A.C.P. (April 2005) © 2005 Pamela Peeke,
M.D. Permission granted by Rodale, Inc., Emmaus, PA 18098. Click
here to purchase Body For Life for Women