MEDICAL: CONDITIONS: OBESITY :
PHYSICAL EXERCISE AND FITNESS:
Obesity More Deadly Than Lack of Fitness
Obesity More Deadly Than Lack of Fitness
Medscape Medical News
Veronica Hackethal, MD
December 24, 2015
Low aerobic fitness during late adolescence increases the risk for early
death, according to a study published online December 20 in the
International Journal of Epidemiology.
The results also undermine the "fat but fit" concept by showing that
physically fit obese men are at higher risk for death than unfit
"In the present study, we found a graded association between aerobic
fitness at the age of 18 years and the risk of early death," write Gabriel
Hstr, PhD, a postgraduate student in the Department of Community Medicine
and Rehabilitation at UmeUniversity, Sweden, and colleagues.
"Also of interest was the finding that the risk of death from any cause
during follow-up was 30% lower in unfit normal-weight men than in obese
fit men," they continued. "These results counter the notion that the 'fat
but fit' condition does not increase mortality risk."
Much research supports the idea that frequent physical activity decreases
the risk for death. Research on the detrimental health effects of low
fitness levels, however, has focused mainly on older populations. Few
studies have looked at the direct link between aerobic fitness and health
in younger individuals.
The study drew data from the Swedish Military Conscription Registry and
included 1,317,713 Swedish men (mean age, 18 years) conscripted into the
Swedish military between 1969 and 1996. At the time of conscription, the
men underwent baseline assessments that included aerobic fitness testing,
in which they cycled until fatigue caused them to stop. The researchers
looked at all-cause and cause-specific death, using national registers.
Mortality information came from the National Cause of Death Registry.
The complete article may be read at the URL above.
During a mean follow-up of 28.8 years, 44,301 of the men died.
Aerobic fitness in late adolescence and the risk of early death: a
prospective cohort study of 1.3 million Swedish men
Gabriel Hstr1,2, Anna Nordstr1,2 and Peter Nordstr1,*
+ Author Affiliations
1Department of Community Medicine and Rehabilitation, Geriatric Medicine
2Department of Public Health and Clinical Medicine, Environmental Medicine
(AN), UmeUniversity, 90185 Ume Sweden
?*Corresponding author. Department of Community Medicine and
Rehabilitation, Geriatric Medicine, UmeUniversity, 90185 Ume Sweden.
E-mail: [log in to unmask]
Accepted November 10, 201
Background: Fitness level and obesity have been associated with death in
older populations. We investigated the relationship between aerobic
fitness in late adolescence and early death, and whether a high fitness
level can compensate the risk of being obese.
Conclusions: Low aerobic fitness in late adolescence is associated with an
increased risk of early death. Furthermore, the risk of early death was
higher in fit obese individuals than in unfit normal-weight individuals.
Fitness obesity death
Medicine and Health
International Journal of Epidemiology
(215) 204 - 4584
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