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223 results on '"Barrey, E."'

14. Indirect detection of growth hormone doping [Détection indirecte d'un dopage à l'hormone de croissance]

Author

Barrey, E., Pagneux, C., Guillaume, D., Unité de biologie intégrative des adaptations à l'exercice (UBIAE), Université d'Évry-Val-d'Essonne (UEVE)-Institut National de la Santé et de la Recherche Médicale (INSERM), Innovation et Développement dans l'Agriculture et l'Agro-alimentaire (UMR Innovation), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), HAL, Univ Évry, Innovation et Développement dans l'Agriculture et l'Agro-alimentaire (Innovation), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre national d'études agronomiques des régions chaudes (CNEARC)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM), and Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

National audience; [No abstract available]

Published
2012

23. Longitudinal ambulatory measurements of gait abnormality in dystrophin-deficient dogs

Author

Barthelemy, I, Barrey, E, Aguilar, P, Uriarte, A, Le Chevoir, M, Thibaud, J-L, Voit, T, Blot, S, Hogrel, J-Y, Barthelemy, I, Barrey, E, Aguilar, P, Uriarte, A, Le Chevoir, M, Thibaud, J-L, Voit, T, Blot, S, and Hogrel, J-Y

Abstract

BACKGROUND: This study aimed to measure the gait abnormalities in GRMD (Golden retriever muscular dystrophy) dogs during growth and disease progression using an ambulatory gait analyzer (3D-accelerometers) as a possible tool to assess the effects of a therapeutic intervention. METHODS: Six healthy and twelve GRMD dogs were evaluated twice monthly, from the age of two to nine months. The evolution of each gait variable previously shown to be modified in control and dystrophin-deficient adults was assessed using two-ways variance analysis (age, clinical status) with repeated measurements. A principal component analysis (PCA) was applied to perfect multivariate data interpretation. RESULTS: Speed, stride length, total power and force significantly already decreased (p<0.01) at the age of 2 months. The other gait variables (stride frequency, relative power distributions along the three axes) became modified at later stages. Using the PCA analysis, a global gait index taking into account the main gait variables was calculated, and was also consistent to detect the early changes in the GRMD gait patterns, as well as the progressive degradation of gait quality. CONCLUSION: The gait variables measured by the accelerometers were sensitive to early detect and follow the gait disorders and mirrored the heterogeneity of clinical presentations, giving sense to monitor gait in GRMD dogs during progression of the disease and pre-clinical therapeutic trials.

Published
2011

30. Relations entre la consommation d’oxygène et des mesures accélérométriques en course à pied sur piste

Author

Le Bris, R., Girard, O., Millet, G.P., Auvinet, B., Barrey, E., Le Bris, R., Girard, O., Millet, G.P., Auvinet, B., and Barrey, E.

Abstract

Introduction. – The purpose of this study was to analyse the relationships between the oxygen consumption (K4 b2) and lumbar triaxial accelerometric measures (Locometrix at 100 Hz) in field running. Synthesis of results. – Nine subjects performed five-minute stages at different velocities (10, 12, 14 and 16 km/h). The oxygen consumption (ml/min/kg) was estimated (R2 = 0.92) from a multiple linear model including anterior-posterior impulse (% BW.s), craniocaudal activity (g2/Hz) and the height (cm). Conclusion. – In field running, the oxygen consumption can be estimated accurately from 100 Hz tri-axial acceleration measures.

Published
2005

31. Transcriptome analysis of muscle in horses suffering from recurrent exertional rhabdomyolysis revealed energetic pathway alterations and disruption in the cytosolic calcium regulation

Author

Barrey, E., primary, Jayr, L., additional, Mucher, E., additional, Gospodnetic, S., additional, Joly, F., additional, Benech, P., additional, Alibert, O., additional, Gidrol, X., additional, Mata, X., additional, Vaiman, A., additional, and Guérin, G., additional

Published
2011
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43. Assessment of gait irregularities in the horse: eye vs. gait analysis

Author

Weishaupt, Michael A; https://orcid.org/0000-0001-7314-162X, Wiestner, Thomas, Hogg, H P, Jordan, P, Auer, Jörg A, Barrey, E, Weishaupt, Michael A; https://orcid.org/0000-0001-7314-162X, Wiestner, Thomas, Hogg, H P, Jordan, P, Auer, Jörg A, and Barrey, E

Abstract

The purpose of this study was to verify the sensitivity of 2 gait analysis methods in detecting subtle lameness and to compare the results to the traditional orthopaedic evaluation. Twenty-two horses were evaluated (1) subjectively by 3 different experienced clinicians and (2) objectively with synchronised ground reaction force and accelerometric gait measurements on a treadmill. The horses were assigned for each of the 3 methods independently to one of 3 groups (GR): sound, lameness front limb, lameness hindlimb. Additionally, for each horse, the affected limb (AL) and degree of lameness (DL) were defined. The accordance between the 3 assessment methods for the categorical variables was tested with a Spearman correlation analysis. The relationship between vertical ground reaction forces and dorsoventral as well as mediolateral accelerations were studied using a Pearson correlation matrix. Significant correlation was found between the clinical GR and GR based on force (r = 0.51, P < 0.05) and acceleration data (r = 0.47, P < 0.05), respectively, and between AL based on clinical and ground reaction force (r = 0.65, P < 0.05) assessment. No significant correlation was found, neither for GR between the 2 measuring methods, nor for DL between the 3 assessment methods. The Pearson correlation matrix revealed significant correlations between peak vertical forces and dorsoventral acceleration in the hindlimbs. We conclude that the measurement of kinetic parameters represents a helpful complementary tool in the assessment of subtle gait alterations. However, this information needs to be interpreted carefully and always related to the clinical observation.

Published
2001

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