Journal article
Cross-Validation of Single-Stage Treadmill Tests for Predicting Aerobic Fitness in Adolescents With Type I Diabetes
Pediatric exercise science, Vol.27(3), pp.396-403
08/2015
DOI: 10.1123/pes.2014-0146
PMID: 26186625
Abstract
Purpose:Determining fitness is important when assessing adolescents with type 1 diabetes mellitus (T1DM). Submaximal tests estimate fitness, but none have been validated in this population. This study cross-validates the Ebbeling and Nemeth equations to predict fitness (VO2max (ml/kg/min)) in adolescents with T1DM.Methods:Adolescents with T1DM (n = 20) completed a maximal treadmill test using indirect calorimetry. Participants completed one 4-min stage between 2.0 and 4.5 mph and 5% grade (Ebbeling/Nemeth protocol). Speed and grade were then increased until exhaustion. Predicted VO2max was calculated using the Ebbeling and Nemeth equations and compared with observed VO2max using paired t tests. Pearson correlation coefficients, 95% confidence intervals, coefficients of determination (R2), and total error (TE) were calculated.Results:The mean observed VO2max was 47.0 ml/kg/min (SD = 6.9); the Ebbeling and Nemeth mean predictions were 42.4 (SD = 9.4) and 43.5 ml/kg/min (SD = 6.9), respectively. Paired t tests resulted in statistically significant (p < .01) mean differences between observed and predicted VO2max for both predictions. The association between the Ebbeling prediction and observed VO2max was r = .90 (95% CI = 0.76, 0.96), R2 = .81, and TE = 6.5 ml/kg/min. The association between the Nemeth prediction and observed VO2max was r = .81 (95% CI = 0.57, 0.92), R2 = .66, and TE = 5.6 ml/kg/min.Conclusion:The Nemeth submaximal treadmill protocol provides a better estimate of fitness than the Ebbeling in adolescents with T1DM.
Details
- Title: Subtitle
- Cross-Validation of Single-Stage Treadmill Tests for Predicting Aerobic Fitness in Adolescents With Type I Diabetes
- Creators
- Shelby L Francis - 1University of IowaAjay Singhvi - 2Northwestern UniversityEva Tsalikian - 1University of IowaMichael J Tansey - 1University of IowaKathleen F Janz - 1University of Iowa
- Resource Type
- Journal article
- Publication Details
- Pediatric exercise science, Vol.27(3), pp.396-403
- DOI
- 10.1123/pes.2014-0146
- PMID
- 26186625
- ISSN
- 0899-8493
- eISSN
- 1543-2920
- Language
- English
- Date published
- 08/2015
- Academic Unit
- Endocrinology and Diabetes; Stead Family Department of Pediatrics; Epidemiology; Fraternal Order of Eagles Diabetes Research Center; Health and Human Physiology
- Record Identifier
- 9984093346502771
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