Differences between remaining ability and loss of capacity in maximum aerobic impairment

dc.creatorNeder, J.A.
dc.creatorNery, L.E.
dc.creatorBagatin, E.
dc.creatorLucas, S.R.
dc.creatorAnção, M.S.
dc.creatorSue, D.Y.
dc.date1998-05-01
dc.date2014-07-17T15:04:57Z
dc.date2015-11-26T11:25:18Z
dc.date2014-07-17T15:04:57Z
dc.date2015-11-26T11:25:18Z
dc.date.accessioned2018-03-28T20:39:18Z
dc.date.available2018-03-28T20:39:18Z
dc.identifierBrazilian Journal of Medical and Biological Research. Associação Brasileira de Divulgação Científica, v. 31, n. 5, p. 639-646, 1998.
dc.identifier0100-879X
dc.identifierS0100-879X1998000500006
dc.identifier10.1590/S0100-879X1998000500006
dc.identifierhttp://dx.doi.org/10.1590/S0100-879X1998000500006
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000500006
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/24148
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/24148
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1233315
dc.descriptionIn the evaluation of exercise intolerance of patients with respiratory diseases the American Medical Association (AMA) and the American Thoracic Society (ATS) have proposed similar classifications for rating aerobic impairment using maximum oxygen uptake (VO2max) normalized for total body weight (ml min-1 kg-1). However, subjects with the same VO2max weight-corrected values may have considerably different losses of aerobic performance (VO2max expressed as % predicted). We have proposed a new, specific method for rating loss of aerobic capacity (VO2max, % predicted) and we have compared the two classifications in a prospective study involving 75 silicotic claimants. Logistic regression analysis showed that the disagreement between rating systems (higher dysfunction by the AMA/ATS classification) was associated with age >50 years (P<0.005) and overweight (P = 0.04). Interestingly, clinical (dyspnea score) and spirometric (FEV1) normality were only associated with the VO2max, % predicted, normal values (P<0.01); therefore, in older and obese subjects the AMA/ATS classification tended to overestimate the aerobic dysfunction. We conclude that in the evaluation of aerobic impairment in patients with respiratory diseases, the loss of aerobic capacity (VO2max, % predicted) should be used instead of the traditional method (remaining aerobic ability, VO2max, in ml min-1 kg-1).
dc.description639
dc.description646
dc.languageen
dc.publisherAssociação Brasileira de Divulgação Científica
dc.relationBrazilian Journal of Medical and Biological Research
dc.rightsaberto
dc.sourceSciELO
dc.subjectdisability evaluation
dc.subjectwork capacity
dc.subjectexercise tolerance
dc.subjectoxygen consumption
dc.subjectoccupational diseases
dc.titleDifferences between remaining ability and loss of capacity in maximum aerobic impairment
dc.typeArtículos de revistas


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