Cardio-Fitness and Weight
Weight Loss Study Aim
To determine the longitudinal relation of change in cardio-pulmonary fitness
to subsequent change in body weight in a cohort of healthy middle-aged
adults.
Weight Loss Study Subjects
Participants were 4599 men and 724 women (43±9 y) receiving at
least three medical examinations between 1970 and 1994. Examinations included
assessment of cardio-respiratory fitness by maximal exercise tests and
measurement of body weight.
Weight Loss Study Measurements
Change in fitness was calculated as the difference in maximal treadmill
time between the first and second examination. Weight change was calculated
as the difference in body weight between the first and last examination
(mean follow-up, 7.5 years).
Weight Loss Study Results
There was a small, yet statistically significant weight gain over the
follow-up. Estimates from the multiple linear regression modelling show
that each 1 min improvement in treadmill time, significantly attenuated
weight gain in both men and women, respectively. Moreover, each 1 min
improvement in treadmill time, reduced the odds of a 5 kg gain by 14 percent
in men and by 9 percent in women and the odds of a 10 kg gain by 21 percent
in both men and women.
Weight Loss Study Conclusion
Improvements in fitness, appear important in attenuating age-related weight
gain in healthy middle-aged adults. Thus, an active life-style should
be promoted early and maintained through adulthood to prevent substantial
weight gain and obesity with age.
Source: International Journal of Obesity
(1997)
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