Yves Lajoie

Carte électronique

Yves Lajoie
Professeur agrégé

1995, Formation Post-Doctorale, Contrôle moteur et réadaptation, Université McGill
1994, Ph.D., Contrôle moteur, Université Laval
1988, M.Sc., Biomécanique, Université du Québec à Trois-Rivières
1985, B.Sc., Éducation physique, Université du Québec à Trois-Rivières

Pièce : MNT 335
Bureau : (613) 562-5800 poste 4273
Courriel professionnel : ylajoie@uottawa.ca

Yves Lajoie

Biographie

Yves Lajoie est professeur agrégé à l'École des sciences de l'activité physique de l'Université d'Ottawa. Après avoir obtenu son PH.D en 1994 de l'Université Laval en apprentissage et contrôle moteur, il a réalisé une année de post-doc en physiothérapie à l'Université McGill alors qu'il recevait un fellowship des Centres d'excellences en Neuroscience. Par la suite, il a obtenu un poste de professeur adjoint à l'Université Laurentienne de 1995 à 2001, moment de son embauche à l'Université d'Ottawa. Depuis 1996, il mène des recherches subventionnées par le CRSNG dans le domaine des exigences attentionnelles, l'équilibre statique et dynamique et le vieillissement. Il est membre de la "Society for Neurosciences" ainsi que de la "North American Society for Psychology of Sports and Physical Education".


Champs d’intérêt

  • Contrôle moteur, psychomotricité

Recherches en cours

Ma recherche porte actuellement sur le contrôle postural et le contrôle de l’attention. La littérature démontre que lorsque l’on porte moins d’attention au contrôle de nos actions, celles-ci deviennent souvent meilleures.  Nous avons démontré que la posture bénéficie également de cette stratégie attentionnelle chez des jeunes adultes et même chez des personnes âgées. Nous tentons en ce moment de généraliser ces résultats à d’autres populations (normale ou pathologique).


Sélection de publications

  • Lajoie, Y., Richer, N., Jehu, D. A., Polskia, N., Saunders, D. (2016). Letter to the Editor: On "Advantages and disadvantages of stiffness instructions when studying postural control" by C.T. Bonnet: You just can't win: Advantages and disadvantages of the postural stability requirement. Gait and Posture. May; 46: 215-8. doi:10.1016/j.gaitpost.2015.12.031.
  • Polskaia, N., Lajoie, Y. (2016). Reducing postural sway by concurrently performing challenging cognitive tasks. Human movement science. 46:177-83. doi: 10.1016/j.humov.2015.12.013. Epub 2016 Jan 18
  • Paquet, N., Jehu, D. A., Lajoie, Y. (2016). Age-related differences in Fukuda Stepping and Babinski-Weil tests. Aging and Clinical Experimental Research. Feb 24. doi: 10.1007/s40520-016-0544-3 EPub ahead of print.
  • Jehu, D. A., Paquet, N., Lajoie, Y. (2016). Examining the stability of dual-task posture and reaction time measures in older adults over five sessions. Aging and Clinical Experimental Research. Jan 5. EPub ahead of print.
  • Paquet, N., Jehu, D. A., Lajoie, Y. (2016). Impact of the number of steps on the Fukuda Stepping test in older adults. Physical & Occupational Therapy in Geriatrics. 34, 104-11. doi:10.3109/02703181.2015.1128510.
  • Jehu, D. A., Thibault, J., Lajoie, Y. (2015). Magnifying the scale of visual biofeedback improves posture. Applied Psychophysiology and Biofeedback Journal. Dec 17. EPub ahead of print.
  • Lajoie, Y., Richer, N., Jehu, D. A., Tran, Y. (2016). Continuous cognitive tasks improve postural control compared to discrete cognitive tasks. Journal of Motor Behavior. 48(3): 264-9. doi: 10.1080/00222895.2015.1089833.
  • Lajoie, Y., Jehu, D. A., Richer, N., Tran, Y. (2016). Reaction time is slower when walking at a slow pace in young adults. Journal of Motor Behavior. 48(2): 153-4. doi: 10.1080/00222895.2015.1056767.
  • Richer, N., Polskaia, N. & Lajoie, Y. (2017) Continuous cognitive task promotes greater postural stability than an internal or external focus of attention in older adults. Experimental Aging Research. 43(2). (Manuscript is accepted but will be publish in 2017)
  • Polskaia, N., Richer, N., Dionne, E. & Lajoie, Y. (2015). Continuous cognitive task promotes greater postural stability than an internal or external focus of attention. Gait & Posture 41(2), 454-458.
  • Paquet N., Lajoie Y., Taillon-Hobson A. (2015). Effect of ankle weight on blind navigation.  Percept. Motor Skills:Motor Skills & Ergonomics. 120,2,1-17.
  • Paquet N., Taillon-Hobson A., Lajoie Y. (2014). Fukuda and Babinski-Weil tests: Within-subject variability and test-retest reliability in healthy adults. J Rehabil Res;51(6):1013-22. doi: 10.1682/JRRD.2013.09.0206.
  • Richer N, Paquet N, Lajoie Y. (2014). Impact of age and obstacles on navigation precision and reaction time during blind navigation in dual-task conditions. Gait Posture. 39(3):835-40. doi: 10.1016/j.gaitpost.2013.09.019.
  • Jehu DA, Desponts A, Paquet N, Lajoie Y. (2015). Prioritizing attention on a reaction time task improves postural control and reaction time. Int J Neurosci. 125(2): 100–106. doi: 10.3109/00207454.2014.907573
  • Bisson EJ, Lajoie Y, Bilodeau M. (2014). The influence of age and surface compliance on changes in postural control and attention due to ankle neuromuscular fatigue. Exp Brain Res. 2014 Mar;232(3):837-45. doi: 10.1007/s00221-013-3795-7.
  • Remaud A, Boyas S, Lajoie Y, Bilodeau M. (2013). Attentional focus influences postural control and reaction time performances only during challenging dual-task conditions in healthy young adults. Exp Brain Res. 231(2):219-29. doi: 10.1007/s00221-013-3684-0.
  • Boyas S., Mcgown C.,  Lajoie Y., Bilodeau M.  (2013). Changes in posture associated with postural control impairment induced by ankle plantarflexor fatigue during unipedal quiet standing. Neuroscience Letters. dx.doi.org/10.1016/j.neulet.2013.05.003.
  • Bisson, E.J., Remaud, A., Boyas, S., Lajoie, Y., & Bilodeau, M. (2012). Effects of fatiguing isometric and isokinetic ankle exercises on postural control while standing on firm and compliant surfaces. Journal of NeuroEngineering and Rehabilitation, 9,39.
  • Lajoie Y., Lafleur R., Paquet, N. (2013) Attentional demands during a goal directed blind navigation task in young and older adults. The Open Behavioral Science Journal, 1-6. Doi:  10.2174/1874230001307010001.
  • Bisson, E.J., McEwen, D., Lajoie, Y., & Bilodeau, M. (2011). Differential Effects of Ankle and Hip Muscle Fatigue on Postural Sway and Attentional Demands during Unipedal Stance. Gait & Posture, 33(1): 83-87.
  • Lajoie, Y., Teasdale, N., Bard, C., Fleury, M. Attentional demands for static and dynamic equilibrium, Experimental Brain Research, 97, 139-144, 1993.

Conférences et présentations

  • Saunders, D., Richer, N., Jehu, D.A., Paquet, N., Lajoie, Y. The influence of an anterior load on attention demand and obstacle clearance before, during, and after an obstacle crossing. North American Society for the Psychology of Sport and Physical Activity Conference Abstract, NASPSPA 2015 Portland, OR, USA. Journal of Sport & Exercise Psychology.
  • Jehu, DA., Thibault, J., Lajoie, Y.  Magnifying the scale of visual biofeedback improves posture. Poster (#702.12) presented at the annual Society for Neuroscience, Chicago, IL, USA. October, 2015 at the McCormick Place.
  • Jehu, DA., Paquet, N., & Lajoie, Y.  How does the number of steps influence involuntary linear and angular displacements when stepping on the spot without vision in old adults? Poster presented at the annual Canadian Psychological Association Convention, Ottawa, Ontario, Canada.  June, 2015 at the Westin.
  • Richer, N., Polskaia, N., Athanathious, A., Saunders, D. & Lajoie, Y. Effect of attentional focus on stability and muscular activation of the leg while standing. Neuroscience, Chicago, IL, October 2015. Nanosymposium oral presentation.
  • Polskaia, N., Richer, N., Thibeault, J., Labelle, I. & Lajoie, Y. Cognitive tasks of increasing load improve stability in challenging postural tasks. North American Society for Psychology of Sport and Physical Activity Conference, Portland, Oregon, June 2015.
  • Saunders, D., Richer, N., Jehu, D., Paquet, N. & Lajoie, Y. The influence of an anterior load on attention demand and obstacle clearance before, during, and after an obstacle crossing. North American Society for the Psychology of Sport and Physical Activity, Portland, Oregon, June 2015. 
  • Richer, N., Labelle, I., Polskaia, N. & Lajoie, Y. Effect of cognitive tasks of varying difficulty on postural control. Canadian Psychological Association Convention, Ottawa, ON, June 2015.
  • Polskaia, N., Dionne, E., & Lajoie, Y. The influence of visual cognitive tasks of varying difficulty on quiet standing. Oral presented at the Canadian Society for Psychomotor Learning and Sport Psychology (SCAPPS 2014) Conference, London, ON.
  • Polskaia, N., Dionne, E., Richer, N., & Lajoie, Y. The effect of attentional focus on postural control during quiet standing. Poster presented at the International Society for Posture and Gait Research (ISPGR 2014), Vancouver, BC.
  • Richer, N., Polskaia, N., & Lajoie, Y. Cognitive task performed during upright standing improves postural control in older adults. Poster presented at the International Society for Posture and Gait Research (ISPGR 2014) Conference. Vancouver, BC.
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