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Walking
for Health
Physical
activity and health outcomes
The
benefits of physical activity towards positive
health outcomes have been supported in a
large number of studies(1).
Regular exercise is thought to have protective
effects against coronary heart disease(2),
non-insulin dependent diabetes(3),
hypertension(4), obesity(5), osteoporosis(6), anxiety and depression(7),
and more recently breast and colon cancer(8).
These
health benefits are not restricted to vigorous
exercise. Recent evidence has highlighted
the contribution of moderate intensity exercise,
such as walking, to improved morbidity and
mortality outcomes. The greatest improvements
in health are achieved when the sedentary
become moderately active(9).
Participation in vigorous activity is often
not appropriate and an unrealistic goal
for many people. Walking, therefore, is
often a more suitable form of exercise that
is both low-cost and practical.
How
often?
Current
recommendations suggest that adults should
try to achieve a goal of at least thirty
minutes of moderate exercise on most days(9).
Further, this can be broken up into 3 bouts
of exercise of at least 10 minutes duration
for similar health benefits(10).
This recommendation is especially appropriate
for the elderly and the sedentary as it
is both safe and achievable. However, it
is important for an individual to consult
a doctor before embarking on any fitness
regime if they are elderly or have a condition
that may impact on their ability to exercise
safely. This include people who:
have been sedentary for a long time
have a chronic illness or disability
are a smoker
are very overweight
have a history of heart disease and chest
pains
have high blood pressure
are diabetic.
How
hard?
An
individual should walk at a pace they find
comfortable and at which they are able to
talk freely. If breathing becomes difficult
or compromised, the pace should be slowed.
If dizziness or pains in the chest are experienced,
it is advisable to stop walking and contact
a doctor if necessary.
It
is important for the foot to undergo a heel-to-toe
action for minimum impact to the body. Wearing
comfortable yet supportive shoes is a necessity.
Shoes should have adequate heel and arch
support, and ideally have uppers of a high
quality breathable material such as leather
and/or nylon mesh.
Other
points to consider
Sun protection should
also be considered, with a hat, sunglasses
and sunscreen being essential, especially
in warmer months.
Light and comfortable clothing should be
worn
Drink liberally before and after exercise
to offset dehydration. Dehydration can lead
to serious health complications if not addressed.
Carrying a drink bottle during long walks
is recommended
Stretch before and after exercise to prevent
muscle damage and promote recovery. Stretches
should be held for a minimum of 20 seconds
and should never cause pain. Stretches should
never be done in a bouncing or jolting motion
as this is potentially damaging to the muscles
Walking
can be both a fitness and sociable activity.
It is an ideal activity that can be shared
with others. A number of walking clubs are
often operating locally and can be accessed
through local councils, leisure centres,
and neighbourhood and community centres.
The
majority of information was provided by
Active Australia from their pamphlet
'Facts on Walking for pleasure and
Health',
For
more information, contact NSW Sport and
Recreation, Level 2 - MLC Building, 105-153
Miller Street, North Sydney, NSW 2060. Phone:
(02) 9923 4234 or access the Active Australia
website on http://www.ausport.gov.au/partic/activeoz.html
References
1.
Blair, S.N., Kohl, H.W. Paffenbarger, R.S.
and Clark, D.G. 1989, 'Physical
fitness and all-cause mortality: a prospective
study of healthy men and women',
Journal of the American Medical Association,
262, pp 2395-2401.
2.
Jennings, G.L. 1995, 'Mechanisms
for reduction of cardiovascular risk by
regular exercise', Clinical Experiments
in Pharmacology and Physiology, 22, pp 209-211.
3.
Viswanathan, V., Vidyavathis, P., Indu,
J., Ramachandran, A. 1997, 'Reduction
in body weight helps to delay the onset
of diabetes even in non-obese with strong
family history of the disease',
Diabetes Research and Clinical Practice,
35, pp 107-112.
4.
Puddy, I.B. and Beilin, L.J. 1995, 'Exercise
in the prevention of hypertension',
Current Opinions in Nephrology and Hypertension',
4, pp 245-250.
5.
Zachwieja, J.J. 1996, 'Exercise
as treatment for obesity', Endocrinology
Metabolism of the Clinics of North America,
25, pp 695-698.
6.
Henderson, N.K., Price, R.I., Cole, J.H.,
Gutteridge, G.H. and Bhagat, C.I. 1995,
'Bone density in young women
is associated with body weight and muscle
strength but not dietary intakes',
Journal of Bone Mineral Research, 10, pp
384-393.
7.
Steptoe, A. and Butler, N. 1996, 'Sports
participation and emotional well-being in
adolescents', Lancet, 347, pp 1789-1792.
8.
Fredenreich, C.M. and Rohan, T.E. 1995,
'Physical activity and risk
of breast cancer', European Journal
of Cancer Prevention, 4, pp 145-151.
9.
Pate, R.R., Pratt, M., Blair, S.N., Haskell,
W.L., Macera, C.A., Bouchard, C. et al.
1995, 'Physical activity
and public health. A recommendation from
the Centres for Disease Control and Prevention
and the American College of Sports Medicine',
Journal of the American Medical Association,
273, pp 402-407.
10.
Debusk, R.F., Stenestrand, U., Sheehan,
M., Haskell, W.L 1990, 'Training
effects of long versus short bouts of exercise
in healthy subjects', American Journal
of Cardiology, 65, pp 1010-1013.
Last
Updated: April 3, 2001.
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