title: Cardiorespiratory fitness of a Brazilian regional sample distributed in different tables.
abstract: BACKGROUND
  Most classification tables of cardiorespiratory fitness (CRF) used in clinical practice are international and have not been validated for the Brazilian population. That can result in important discrepancies when that classification is extrapolated to our population.
  
  
  OBJECTIVE
  To assess the use of major CRF tables available in a Brazilian population sample of the Central High Plan of the state of Rio Grande do Sul (RS).
  
  
  METHODS
  This study assessed the retrospective data of 2,930 individuals, living in 36 cities of the Central High Plan of the state of RS, and considered the following: presence of risk factors for cardiovascular disease and estimated maximum oxygen consumption (VO2peak) values obtained through exercise test with Bruce protocol. To classify CRF, the individuals were distributed according to sex, inserted in their respective age groups in the Cooper, American Heart Association (AHA) and Universidade Federal de São Paulo (Unifesp) tables, and classified according to their VO2peak.
  
  
  RESULTS
  Women had lower VO2peak values as compared with those of men (23.5 ± 8.5 vs. 31.7 ± 10.8 mL.kg-1.min-1, p < 0.001). Considering both sexes, VO2peak showed an inverse and moderate correlation with age (R = -0.48, p < 0.001). An important discrepancy in the CRF classification levels was observed between the tables, ranging from 49% (Cooper x AHA) to 75% (Unifesp x AHA).
  
  
  CONCLUSIONS
  Our findings indicate important discrepancy in the CRF classification levels of the tables assessed. Future studies could assess whether international tables could be used for the Brazilian population and populations of different regions of Brazil.
authors.affiliation: Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: Karlyse Claudino
authors.initials: KC
authors.lastname: Belli
authors.forename: Carine C
authors.initials: CC
authors.lastname: Callegaro
authors.forename: Carine
authors.initials: C
authors.lastname: Calegaro
authors.forename: Cleusa Maria
authors.initials: CM
authors.lastname: Richter
authors.forename: Jonatas Zeni
authors.initials: JZ
authors.lastname: Klafke
authors.forename: Ricardo
authors.initials: R
authors.lastname: Stein
authors.forename: Paulo Ricardo Nazario
authors.initials: PR
authors.lastname: Viecili
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001938:Brazil; D002318:Cardiovascular Diseases / Q000209:etiology*; D002320:Cardiovascular Physiological Phenomena; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption / Q000502:physiology*; D010809:Physical Fitness / Q000502:physiology*; D012143:Respiratory Physiological Phenomena; D012307:Risk Factors; D017678:Sex Distribution; D012737:Sex Factors; D055815:Young Adult