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Estimation de la consommation pic d’oxygène par la perception de l’effort chez des patients obèses et diabétiques de type 2

Estimation of peak oxygen uptake from ratings of perceived exertion in obese patients with a type 2 diabetes

  • Article Original / Original Article
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Résumé

Objectifs

Les objectifs étaient: 1) d’examiner la validité des valeurs de perception de l’effort (RPE) à prédire la consommation pic d’oxygène (.VO2pic) des patients obèses et diabétiques durant une épreuve d’effort sousmaximale, et 2) de comparer la précision des prédictions obtenues à partir des RPE ≤ 15 et RPE ≤ 17.

Matériels et méthodes

Dix-sept patientes obèses et diabétiques de type 2 réalisaient une épreuve d’effort maximale, durant laquelle les consommations d’oxygène (.VO2) et les RPE étaient mesurées. Les régressions linéaires individuelles entre.VO2 et RPE étaient extrapolées à RPE = 20 afin de prédire.VO2pic.

Résultats

Les.VO2pic mesurées (12,7 ± 3,6 ml.kg−1.min−1) n’étaient pas significativement différentes des.V O2pic estimées par les RPE ≤ 15 et RPE ≤ 17 (13,1 ± 3,7 et 13,3 ± 3,8 ml.kg−1.min−1, respectivement). Les.V O2pic mesurées étaient corrélées aux.VO2pic estimées par les RPE ≤ 15 et les RPE ≤ 17 (r = 0,89 et r = 0,92, respectivement). Les limites d’agrément étaient de −0,4 ± 3,4 et −0,6 ± 3,0 ml.kg−1.min−1 pour les prédictions à partir des RPE ≤ 15 et RPE ≤ 17, respectivement.

Conclusion

Ces résultats suggèrent que les RPE ≤ 15 fournissent une prédiction précise de la.VO2pic des patientes obèses et diabétiques. Cependant, la précision des prédictions était améliorée lorsque les.VO2pic étaient prédites par les RPE ≤ 17. En conséquence, les RPE peuvent être utilisées pour prédire la.VO2pic, et ainsi diminuer le risque de complications cardiovasculaires durant une épreuve d’effort.

Abstract

Objectives

The main objectives of this study were: 1) to assess the validity of predicting peak oxygen uptake (.VO2peak) from ratings of perceived exertion (RPE) during a sub-maximal graded exercise test (GXT), in obese patients with diabetes, and 2) to compare the accuracy of predictions obtained from RPE ≤ 15 and RPE ≤ 17. Materials and methods: Seventeen obese women with type 2 diabetes performed GXT to volitional exhaustion, in which oxygen uptake (.VO2) and RPE were measured. Individual linear regressions between.VO2 and RPE, that were collected during the first stages of GXT (RPE ≤ 15 and RPE ≤ 17), were extrapolated to RPE = 20 in order to predict.VO2peak. Results: Actual (12.7 ± 3.6 ml.min−1.kg−1) and predicted.VO2peak from RPE ≤ 15 and RPE ≤ 17 (13.1 ± 3.7 and 13.3 ± 3.8 ml.min−1.kg−1, respectively) were not significantly different. The actual.V O2peak were significantly correlated to the predicted.VO2peak from RPE ≤ 15 and RPE ≤ 17 (R = 0.89 and R = 0.92, respectively). The 95% limits of agreement analysis were −0.4 ± 3.4 and −0.6 ± 3.0 ml.min−1.kg−1 for the predictions from RPE ≤ 15 and RPE ≤ 17, respectively.

Conclusion

Results suggested that the RPE ≤ 15 provide accurate.V O2peak prediction in obese women with type 2 diabetes. However, the accurate of predictions was improved when the.VO2peak was predicted from RPE ≤ 17. Consequently, RPE may be used to predict.VO2peak and to decrease the risk of cardio-vascular complications during GXT.

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Authors and Affiliations

  1. Cellule Qualité, Centre Hospitalier Germon et Gauthier, rue Delbecque, BP 809, 62408, Béthune Cedex, France

    J. B. J. Coquart

  2. Laboratoire d’Etudes de la Motricité Humaine, Université de Lille 2, 9 rue de l’Université, 59790, Ronchin, France

    J. B. J. Coquart & M. Garcin

  3. Service de Pneumologie, Centre Hospitalier Germon et Gauthier, rue Delbecque, BP 809, 62408, Béthune Cedex, France

    J. -M. Grosbois

  4. Service d’Endocrinologie, de Diabétologie et des Maladies de la Nutrition, Centre Hospitalier Germon et Gauthier, rue Delbecque, BP 809, 62408, Béthune Cedex, France

    F. Wibaux & C. Lemaire

  5. Service de Cardiologie, Centre Hospitalier Germon et Gauthier, rue Delbecque, BP 809, 62408, Béthune Cedex, France

    A. -E. Dubart & C. Lemaire

  6. Association Prévention Vasculaire Artois, 42-48 rue de la Ferme du Roy, 62400, Béthune, France

    C. Lemaire

Authors
  1. J. B. J. Coquart
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  2. M. Garcin
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  3. J. -M. Grosbois
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  4. F. Wibaux
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  5. A. -E. Dubart
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  6. C. Lemaire
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Correspondence to J. B. J. Coquart.

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Coquart, J.B.J., Garcin, M., Grosbois, J.M. et al. Estimation de la consommation pic d’oxygène par la perception de l’effort chez des patients obèses et diabétiques de type 2. Obes 6, 98–104 (2011). https://doi.org/10.1007/s11690-011-0261-1

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  • DOI: https://doi.org/10.1007/s11690-011-0261-1

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