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Objectives: To cross-validate the existing peak rate of oxygen consumption (VO2peak) prediction equations in Dutch law
enforcement officers and to determine whether these prediction equations can be used to predict VO2peak for groups and
in a single individual. A further objective was to report normative absolute and relative VO2peak values of a sample of law
enforcement officers in the Netherlands. Material and Methods: The peak rate of oxygen consumption (ml×kg–1×min–1)
was measured using a maximal incremental bicycle test in 1530 subjects, including 1068 male and 461 female police officers.
Validity of the prediction equations for groups was assessed by comparing predicted VO2peak with measured VO2peak using
paired t-tests. For individual differences limits of agreement (LoA) were calculated. Equations were considered valid for
individuals when the difference between measured and predicted VO2peak did not exceed ±1 metabolic equivalent (MET)
in 95% of individuals. Results: None of the equations met the validity criterion of 95% of individuals having ±1 MET difference
or less than the measured value. Limits of agreement (LoAs) were large in all predictions. At the individual level,
none of the equations were valid predictors of VO2peak (ml×kg–1×min–1). Normative values for Dutch law enforcement
officers were presented. Conclusions: Substantial differences between measured and predicted VO2peak (ml×kg–1×min–1)
were found. Most tested equations were invalid predictors of VO2peak at group level and all were invalid at individual levels.

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OrganisatieHogeschool Utrecht
AfdelingKenniscentrum Gezond en Duurzaam Leven
LectoraatLeefstijl en Gezondheid
Gepubliceerd inInternational Journal of Occupational Medicine and Environmental Health Vol. 28, Uitgave: 3, Pagina's: 519-531
Jaar2015
TypeArtikel
TaalEngels

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