| Determination of the maximal fat oxidation point in obese children and adolescents: validity of methods to assess maximal aerobic power. | |
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MedLine Citation:
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PMID: 19002708 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We aimed to examine the interchangeability of techniques used to assess maximal oxygen consumption (VO2max) and maximal aerobic power (MAP) employed to express the maximal fat oxidation point in obese children and adolescents. Rate of fat oxidation were measured in 24 obese subjects (13.0 +/- 2.4 years; Body Mass Index 30.2 +/- 6.3 kg m(-2)) who performed a five 4-min stages submaximal incremental cycling exercise. A second cycling exercise was performed to measure VO2max. Results are those of the 20 children who achieved the criterion of RER (>1.02) to assess the attainment of VO2max. Although correlations between results obtained by different methods were strong, Bland-Altman plots showed little agreement between the maximal fat oxidation point expressed as a percentage of measured VO2max and as % VO2max estimated according to ACSM guidelines (underestimation : -5.9%) or using the predictive equations of Wasserman (-13.9%). Despite a mean underestimation of 1.4% several values were out of the limits of agreement when comparing measured MAP and Theoretical MAP. Estimations of VO2max lead to underestimations of the maximal fat oxidation point. |
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Authors:
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Julien Aucouturier; Mélanie Rance; Martine Meyer; Laurie Isacco; David Thivel; Nicole Fellmann; Martine Duclos; Pascale Duché |
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Publication Detail:
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Type: Journal Article Date: 2008-11-12 |
Journal Detail:
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Title: European journal of applied physiology Volume: 105 ISSN: 1439-6327 ISO Abbreviation: Eur. J. Appl. Physiol. Publication Date: 2009 Jan |
Date Detail:
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Created Date: 2009-01-09 Completed Date: 2009-03-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100954790 Medline TA: Eur J Appl Physiol Country: Germany |
Other Details:
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Languages: eng Pagination: 325-31 Citation Subset: IM |
Affiliation:
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Laboratoire Inter-Universitaire de Biologie des Activités Physiques et Sportives, Université Blaise Pascal, Clermont-Ferrand, France. Julien.AUCOUTURIER@univ-bpclermont.fr |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adipose Tissue
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metabolism* Adolescent Child Ergometry / methods* Exercise* Exercise Test Female Guidelines as Topic / standards Humans Male Obesity / physiopathology* Oxidation-Reduction Oxygen Consumption Physical Endurance Physical Exertion Societies, Medical |
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