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Journal Article

Citation

Andersen LB, Froberg K, Kristensen P, Moller N, Resaland G, Anderssen S. Scand. J. Med. Sci. Sports 2010; 20(5): 757-763.

Copyright

(Copyright © 2010, John Wiley and Sons)

DOI

10.1111/j.1600-0838.2009.00936.x

PMID

unavailable

Abstract

It is important to monitor changes over time in aerobic fitness and obesity in order to target interventions when health deteriorates. We analyzed data from three population studies of adolescents carried out in 1983, 1997, and 2003. Participants were 1050 adolescents from the whole country of Denmark in 1983, 410 in 1997, and 418 in 2003, the two latter cohorts from the City of Odense. VO2max was estimated from maximal power output (MPO) in a cycle test with progressively increasing workload. Estimated VO2max for boys and girls was 52 and 41 mL/min/kg, respectively, both in 1983, 1997, and 2003 with no difference between the three cohorts. However, body mass index (BMI) increased 10% in the upper decentile of the distribution since 1983. MPO decreased over time, but validation studies showed that this was not due to decreased VO2max. The cohort from 1983 was tested twice by school teachers and experienced scientists, and the scientists found higher MPO than school teachers in the same subjects, which emphasize the importance of good validation studies.

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