Search Results - (Author, Cooperation:S. Lavoie)

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  1. 1
    V. Demers-Carpentier ; G. Goubert ; F. Masini ; R. Lafleur-Lambert ; Y. Dong ; S. Lavoie ; G. Mahieu ; J. Boukouvalas ; H. Gao ; A. M. Rasmussen ; L. Ferrighi ; Y. Pan ; B. Hammer ; P. H. McBreen
    American Association for the Advancement of Science (AAAS)
    Published 2011
    Staff View
    Publication Date:
    2011-11-15
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    M. R. Howitt ; S. Lavoie ; M. Michaud ; A. M. Blum ; S. V. Tran ; J. V. Weinstock ; C. A. Gallini ; K. Redding ; R. F. Margolskee ; L. C. Osborne ; D. Artis ; W. S. Garrett
    American Association for the Advancement of Science (AAAS)
    Published 2016
    Staff View
    Publication Date:
    2016-02-06
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Chemoreceptor Cells/*immunology ; Eosinophils/immunology ; Goblet Cells/immunology ; Helminthiasis/immunology/parasitology ; Helminths/immunology ; Immunity, Mucosal ; Interleukin-13/immunology ; Interleukin-17/immunology ; Intestinal Diseases, Parasitic/*immunology/parasitology ; Intestinal Mucosa/*immunology/*parasitology ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Microbiota/*immunology ; Protein-Serine-Threonine Kinases/immunology ; Protozoan Infections/immunology/parasitology ; Signal Transduction ; TRPM Cation Channels/*immunology ; Taste ; Transducin/genetics/immunology ; Tritrichomonas/immunology
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Lavoie, S. S., Dumas, E., Vulesevic, B., Neagoe, P.-E., White, M., Sirois, M. G.
    The American Association of Immunologists (AAI)
    Published 2018
    Staff View
    Publication Date:
    2018-05-22
    Publisher:
    The American Association of Immunologists (AAI)
    Print ISSN:
    0022-1767
    Electronic ISSN:
    1550-6606
    Topics:
    Medicine
    Published by:
    http://www.aai.org/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    McFadyen, B. J. ; Lavoie, S. ; Drew, T.
    Springer
    Published 1999
    Staff View
    ISSN:
    1432-1106
    Keywords:
    Key words Obstacle avoidance ; Walking ; Torque ; Power ; Quadruped
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Abstract  The safe control of walking over different terrains requires appropriate adaptations in the dynamic and kinematic limb patterns. To date, the study of locomotor dynamics in the cat has been confined to level, unobstructed walking. The present study extends the work of Lavoie et al. by applying linked segment analyses to estimate muscle contributions to torque and mechanical power at the hindlimb joints of two female cats during both unobstructed walking and obstacle avoidance. Data during obstacle avoidance were analyzed both when the hindlimb led in clearance and was farthest from the obstacle, and when it trailed in clearance and was closest or near to the obstacle. It was found that, in both the Far and Near obstructed conditions, the cats cleared the obstacles primarily by increasing the knee flexor torque already used during unobstructed gait. Contributions from the hip and ankle muscle groups were more variable. There was more emphasis on the hip extensors in mid to late stance, and the hip flexors generated a small amount of energy at paw-lift in the Far condition. In the Near condition, the hip extensors were employed to control hip flexion. We suggest that hip flexor generation power in mid-swing contributes to the clearance of the upcoming obstacle in the Far condition while, in the Near condition, hip flexion advances the already extended limb ahead of the obstacle. The ankle was actively dorsiflexed in the Near condition but was maintained in extension in the Far condition. The emphasis on active knee flexor control by the cat to avoid obstacles, as well as the dependence of ankle control on obstacle proximity, is similar to strategies seen for humans. However, the knee flexor strategy is innate to the cat’s normal level walking control, whereas in humans active knee flexion at toe-off requires a reorganization from level, non-obstructed gait.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s002210050708

    Articles: DFG German National Licenses