title: Verification of Maximal Oxygen Uptake in Obese and Nonobese Children.
abstract: The purpose of this study was to examine whether a supramaximal constant-load verification test at 105% of the highest work rate would yield a higher V˙O2max when compared with an incremental test in 10- to 12-yr-old nonobese and obese children.
  
  
  
  Nine nonobese (body mass index percentile = 57.5 ± 23.2) and nine obese (body mass index percentile = 97.9 ± 1.4) children completed a two-test protocol that included an incremental test followed 15 min later by a supramaximal constant-load verification test.
  
  
  
  The V˙O2max achieved in verification testing (nonobese = 1.71 ± 0.31 L·min and obese = 1.94 ± 0.47 L·min) was significantly higher than that achieved during the incremental test (nonobese = 1.57 ± 0.27 L·min and obese = 1.84 ± 0.48 L·min; P < 0.001). There was no significant group (i.e., nonobese vs obese)-test (i.e., incremental vs verification) interaction, suggesting that there was no effect of obesity on the difference between verification and incremental V˙O2max (P = 0.747).
  
  
  
  A verification test yielded significantly higher values of V˙O2max when compared with the incremental test in obese children. Similar results were observed in nonobese children. Supramaximal constant-load verification is a time-efficient and well-tolerated method for identifying the highest V˙O2 in nonobese and obese children.
authors.affiliation: 1Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, TX; 2UT Southwestern Medical Center, Dallas, TX; 3Exercise Physiology Program, College of Nursing and Health Sciences, Valdosta State University, Valdosta, GA; 4Health and Exercise Science, Appalachian State University, Boone, NC; and 5Exercise Science, Department of Health and Human Performance, Texas A&M University-Commerce, Commerce, TX.
authors.forename: Dharini M
authors.initials: DM
authors.lastname: Bhammar
authors.forename: Jonathon L
authors.initials: JL
authors.lastname: Stickford
authors.forename: Vipa
authors.initials: V
authors.lastname: Bernhardt
authors.forename: Tony G
authors.initials: TG
authors.lastname: Babb
mesh_terms: D000072599:Cardiorespiratory Fitness / Q000502:physiology; D002648:Child; D004734:Energy Metabolism; D005080:Exercise Test / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D063766:Pediatric Obesity / Q000503:physiopathology*; D015203:Reproducibility of Results