Dharini M Bhammar1, Jonathon L Stickford, Vipa Bernhardt, Tony G Babb. 1. 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.
Abstract
PURPOSE: 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. METHODS: 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. RESULTS: 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). CONCLUSION: 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.
PURPOSE: 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 obesechildren. METHODS: 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. RESULTS: 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). CONCLUSION: A verification test yielded significantly higher values of V˙O2max when compared with the incremental test in obesechildren. 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 obesechildren.
Authors: Paulo Azevedo; Dharini M. Bhammar; Tony G. Babb; T. Scott Bowen; Klaus K. Witte; Harry B. Rossiter; Julien V. Brugniaux; Ben D. Perry; Ricardo Dantas de Lucas; Tiago Turnes; Jeann L. Sabino-Carvalho; Thiago Ribeiro Lopes; Rodrigo Zacca; Ricardo J. Fernandes; Greg L. McKie; Tom J. Hazell; Lucas Helal; Anderson Donelli da Silveira; Craig Ryan McNulty; Robert Andrew Roberg; Tom E. Nightingale; Abdullah A. Alrashidi; Evgeny Mashkovskiy; Andrei Krassioukov; Pierre Clos; Davy Laroche; Benjamin Pageaux; David C. Poole; Andrew M. Jones; Gustavo Z. Schaun; Diego Santos de Souza; Tatiane de Oliveira Barreto Lopes; Mary Vagula; Li Zuo; Tingyang Zhao Journal: J Appl Physiol (1985) Date: 2018-07-01
Authors: Daniel P Wilhite; Dharini M Bhammar; Bryce N Balmain; Tanya Martinez-Fernandez; Tony G Babb Journal: Respir Physiol Neurobiol Date: 2020-12-07 Impact factor: 1.931
Authors: Nuno Manuel Frade de Sousa; Danilo Rodrigues Bertucci; Gabriel Medeiros de Sant'Ana; Pedro Luiz Ribeiro Angelucci Padua; Diogo Mello da Rosa Journal: Sci Rep Date: 2021-06-23 Impact factor: 4.379