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384 results on '"Lhermitte M"'

7. Factors associated with perceived exertion and estimated time limit at lactate threshold

Author

Garcin, M., Mille-Hamard, L., Duhamel, A., Boudin, F., Reveillere, C., Billat, V., and Lhermitte, M.

Subjects
Exercise -- Research, Health, Psychology and mental health
Abstract

The purpose was to identify the most predictive parameters for perceived exertion and estimated time limit responses at the velocity corresponding to the lactate concentration threshold. The former scale concerns the subject's current status (how hard he feels the exercise currently is) whereas the latter scale deals with a subjective prediction of how long the current exercise level can be maintained. Multiple regression equations were developed among physiological, psychological, nutritional, and individual parameters (subjects' characteristics and performances) as independent variables, and perceived exertion or estimated time limit as dependent variables. Independent variables were collected before or during an incremental running field test. 94 regional to national level athletes (47 endurance-trained runners, 11 sprinters, and 36 handball players) participated. Multiple stepwise regression showed that Rating of Perceived Exertion and Estimated Time Limit at the lactate threshold were mainly mediated by factors relative to the performance expressed in percentage of the maximal aerobic velocity. Secondary factors which contribute significantly as perceptual predictors were related to various classes of factors except for psychological factors.

Published
2006

8. Influence of acetaminophen consumption on perceived exertion at the lactate concentration threshold

Author

Garcin, M., Mille-Hamard, L., Billat, V., Humbert, L., and Lhermitte, M.

Subjects
Acetaminophen -- Health aspects, Acetaminophen -- Research, Athletes -- Health aspects, Athletes -- Research, Health, Psychology and mental health
Abstract

The purpose of this investigation was to study effects of acetaminophen consumption on ratings of perceived exertion and estimated time limit responses at the lactate threshold. 98 young regional to national level athletes performed a graded exhausting exercise on an outdoor running track to estimate their maximal aerobic velocity and the velocity associated with their lactate concentration threshold. Urine (30 mL) was collected during this test and analysed for numerous substances. During urinary screening for doping substances, 9 acetaminophen consumers (9.2%) among the 98 included athletes were detected. These acetaminophen consumers have significantly lower perceived exertion at velocity corresponding to the lactate concentration threshold than nonconsumers (11.9 [+ or -] 2.1 vs 13.6 [+ or -] 2.1, respectively) although they were at the same relative exercise intensity. This result shows that acetaminophen consumption may have mediated the perceived exertion response at the lactate concentration threshold. This may then suggest that the pain induced by training load could be a factor in use of self-prescribed pain relievers. Such consumption must be taken into account by medical staff, trainers, or educators who have to give information on the use and adverse effects of this substance and to propose palliative methods to their athletes.

Published
2005

16. Determination of glyphosate in biological fluids by (super 1)H and (super 31)P NMR spectroscopy.

Author

Cartigny, B., Azaroual, N., Imbenotte, M., Mathieu, D., Vermeersch, G., Goulle, J.P., and Lhermitte, M.

Subjects
Poisoning -- Research, Glyphosate -- Analysis -- Research -- Usage, Nuclear magnetic resonance -- Usage -- Research -- Analysis, Xenobiotics -- Research, Body fluids -- Research -- Analysis -- Usage
Abstract

Abstract Identification of glyphosate in four cases of poisoning, using nuclear magnetic resonance spectroscopy of biological fluids is reported. It has been performed by using a combination of ¹H and [...]

Published
2004

20. A fatal case of mercuric cyanide poisoning.

Author

Labat, L., Dumestre-Toulet, V., Goulle, J.P., and Lhermitte, M.

Subjects
Poisoning -- Research, Forensic toxicology -- Research, Cyanides -- Research, Chemical compounds -- Research
Abstract

Abstract A 57-year-old pharmacist was found dead 11 days after his disappearance. At the autopsy, samples of blood, urine, gastric content were obtained. Presence of ethanol, cyanide and mercury were [...]

Published
2004

24. DOSAGE PLASMATIQUE DES ANTIRÉTROVIRAUX

Author

EL JAOUDI, R., HUMBERT, L., WIART, J. F., HOUDRET, N., CHERRAH, Y., and LHERMITTE, M.

Subjects
Antiretroviral drugs
Abstract

Objectif : Il s’agit de l’étude d’une méthode de dosage par chromatographie liquide haute performance de huit antirétroviraux inhibiteurs de la protéase et de deux inhibiteurs non nucléosidiques de transcriptase inverse dans le plasma. Matériel et méthode : Les molécules sont extraites par le tert butyl méthyl éther en milieu basique en présence d’un étalon interne puis analysées par chromatographie liquide à haute performance sur une colonne symmetry C18 250 mm x 4.6 mm 5 μm (Waters). La phase mobile est un mélange de l’acétonitrile et du tampon phosphate 0.05 M pH 3,6 en mode isocratique (45/55). La détection est réalisée par un détecteur ultraviolet à une longueur d’onde fixe de 205nm. Résultats : La méthode analytique est linéaire de 200 à 10000 ng/ml, répétable et reproductible (coefficient de variation, Maroc Médical, Vol. 29, No 1 (2007)

Published
2013
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28. Investigation of nanoparticles and carbon nanotubes toxicity and transfer in bacteria and plants

Author

Carrière, M., Simon-Dekers, A., Larue, C., Mayne-Lhermitte, M., Herlin-Boime, Nathalie, Reynaud, C., Laboratoire Pierre Süe (LPS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Laboratoire Francis PERRIN (LFP - URA 2453)

Subjects
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2009

29. Study of ethnic differences in distribution of CYP3A5 gene polymorphisms

Author

S Chevalier D Allorge D Lo-Guidice Jm Migot-Nabias F Kenani a Imbenotte M Broly F Lacarelle B Lhermitte M., Quaranta, Cytosquelette et Intégration des Signaux du Micro-Environnement Tumoral - UMR 6032 (CISMET), Université de la Méditerranée - Aix-Marseille 2-Université de Provence - Aix-Marseille 1-Centre National de la Recherche Scientifique (CNRS), and Vidalin, Michèle

Subjects
[SDV.BC]Life Sciences [q-bio]/Cellular Biology, [SDV.BC] Life Sciences [q-bio]/Cellular Biology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2006

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