RT Journal Article
SR Electronic
T1 Late-breaking abstract: Evaluation and comparison of functional capacity to incremental shuttle walk test and maximal exercising test on treadmill in obese women
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP p1295
VO 38
IS Suppl 55
A1 Jurgensen, Soraia Pilon
A1 Di Thommazo-Luporini, Luciana
A1 Trimer, Renata
A1 Martinez, Adalberto Felipe
A1 Bonjorno-Junior, José Carlos
A1 Oliveira, Claudio Ricardo
A1 Catai, Aparecida Maria
A1 Dourado, Victor Zuniga
A1 Borghi-Silva, Audrey
YR 2011
UL http://erj.ersjournals.com/content/38/Suppl_55/p1295.abstract
AB The Incremental Shuttle Walk Test (ISWT) has been increasingly used and may constitute a method for assessing functional capacity in obese population. However, if ISWT represents maximal exercise effort and produces similar cardiorespiratory responses in obese women remains to be investigated. The aims was compare the cardiorespiratory responses between obese and eutrophic during the ISWT and the cardiopulmonary exercise testing (CPET). Twenty-nine women (17 obese), allocated in the obese group (OG) and eutrophic group (EG), performed two ISWT and a CPET on a treadmill (Bruce protocol). Heart rate (HR) was determined before and after each test. Ventilatory (VE) and metabolic (VO2; VCO2) measurements were collected breath by breath with a portable ergoespirometer (Oxycon mobile; CareFusion-Germany). We considered the results of the second ISWT to statistical analysis. Oxygen uptake (ml/kg/min) as well as distance walked and time of the test were significantly lower in the OG in both tests (ISWT: p<0.001, <0.001, <0.001; CPET: p<0.001, =0.016, =0.001; respectively). Both tests showed correlation between distance and VO2 (ml/kg/min) and HR (ISWT: r=0.83, r=0.68; CPET: r=0.53 ,r=0.52, respectively). Comparing the methods the ISWT was able to elicit ventilatory, metabolic and cardiovascular responses in agreement with CPET. In addition, it was observed the agreement of both tests to identify relative VO2, VE and HR at the peak of exercise. The ISWT seemed to be an adequate method to assess functional limitation in obese women and promote ventilatory, metabolic and cardiopulmonary responses in agreement to the CPET.Grants: FAPESP (09/01842-0;10/03030-0).