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Int J Sports Med 2017; 38(07): 541-545
DOI: 10.1055/s-0042-119726
Training & Testing
© Georg Thieme Verlag KG Stuttgart · New York

Comparison of Specific Prediction Equations to Estimate Peak Oxygen Uptake in Obese Women

Ghazi Racil
1   Université El-Manar de Tunis, Faculté des Sciences, Département des Sciences Biologiques, Tunis, Tunisie
,
Christine Lemaire
2   Centre Hospitalier de Béthune, Service d'Endocrinologie et Diabétologie, Beuvry, France
,
Alain-Eric Dubart
3   Centre Hospitalier de Béthune, Service des Urgences, Beuvry, France
,
David Debeaumont
4   Centre Hospitalier Universitaire de Rouen, Service de Physiologie Digestive, Urinaire, Respiratoire et Sportive, Rouen, France
,
Ingrid Castres
5   Université de Rouen, UFR STAPS; CETAPS, Mont Saint Aignan, France
,
Jérémy B. Coquart
5   Université de Rouen, UFR STAPS; CETAPS, Mont Saint Aignan, France
› Author Affiliations
Further Information

Publication History



accepted 13 October 2016

Publication Date:
02 June 2017 (online)

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Abstract

The aim of the current study was to compare 2 equations to predict peak oxygen uptake (V̇O2peak) in obese women, according to their obesity class. 92 maximal cardiopulmonary exercise testing sets (CPET with initial and subsequent increments set to achieve an exercise duration between 8–12 min) were retrospectively analysed. These CPET were divided into 3 groups according to the women body mass indexes (BMI): class 1 (30 kg.m−2≤BMI<35 kg.m−2, n=22), class 2 (35 kg.m−2≤BMI<40 kg.m−2, n=36) or class 3 (BMI≥40 kg.m−2, n=34). Each participant’s V̇O2peak was predicted from 2 prediction equations (from Wasserman et al.'s and Debeaumont et al.'s equations) and compared with the actual V̇O2peak. Moreover, the correlations between these values were studied, and the accuracy of the predictions was analysed. Only predicted V̇O2peak from the Debeaumont et al.'s equation was not significantly different from the actual V̇O2peak in the women in obesity class 3 (p=0.89). Moreover, significant correlation was found between these values (p<0.001, r=0.68). The bias and the 95% limits of agreement represented -3.2±34.0%. In women in obesity class 3, Debeaumont et al.'s equation may be the accurate one to predict V̇O2peak. However, the accuracy of predictions is low. Consequently, to improve this accuracy, new prediction equations for obese women are required according to the obesity class.

Key words

Maximal oxygen consumption - cardiopulmonary exercise testing - obesity - validity - accuracy
 

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