Cardiorespiratory Fitness and Health Outcomes: A Call to Standardize Fitness Categories

Peter Kokkinos, Jonathan Myers, Barry Franklin, Puneet Narayan, Carl J. Lavie, Charles Faselis

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


An inverse association between physical activity or fitness status and health outcomes has been reported by several cohort studies. When fitness categories are established in quartiles or quintiles based on the peak exercise capacity achieved, the association is graded. Although significant health benefits of increased cardiorespiratory fitness (CRF) have been uniformly reported, the degree of protection has varied substantially between studies. This variability is likely due to varying methods used to define CRF categories, and not considering age, despite its strong effect on CRF. To ameliorate these methodological discrepancies, we propose standardized guidelines by which age-specific CRF categories should be defined.

Original languageEnglish (US)
Pages (from-to)333-336
Number of pages4
JournalMayo Clinic Proceedings
Issue number3
StatePublished - Mar 1 2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Medicine(all)

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