Yves Lajoie

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Yves Lajoie
Associate Professor

1995, Post-Doctoral, Motor control and rehabilitation, McGill University
1994, Ph.D., Motor control, Laval University
1988, M.Sc., Biomecanics, Université du Québec à Trois-Rivières
1985, B.Sc., Physical education, Université du Québec à Trois-Rivières

Room: MNT 335
Office: (613) 562-5800 ext. 4273
Work E-mail: ylajoie@uottawa.ca

Yves Lajoie

Biography

Yves Lajoie is an associate professor in the School of Human Kinetics. He obtained his Ph.D. in motor control and learning from the Laval University in 1994. In 1995, he realized one year of post-doc in physiotherapy at McGill University where he received a fellowship from the Center of Excellence in Neurosciences. In 1995, he joined Laurentian University as an assistant professor. Since 1996, he has been carrying out externally funded research (NSERC) in the area of cognitive involvement, static and dynamic equilibrium and aging. He is a member of the "Society for Neurosciences" and of the "North American Society for Psychology of Sports and Physical Education".


Research Interests

  • Motor control, Psychomotricity

Ongoing Research

My research currently deals with postural and attention control. The literature shows that when we pay less attention to controlling our actions, they often improve. We have shown that posture also benefits from this attentional strategy, among young adults and even seniors. At this time, we are trying to see if we can extrapolate these results to other population groups (normal or pathological).


Selected 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.

Conferences and Presentations

  • 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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