Isabelle Gagnon

Academic title(s): 

Associate Professor

Isabelle Gagnon
Contact Information

Building: Hosmer House, room 203, 3630 prom Sir-William-Osler

Mailing Address: 3654 prom Sir-William-Osler, Montréal, QC, Canada H3G 1Y5

514-398-4400 ext 099057
Fax number: 
Email address: 
isabelle.gagnon8 [at]
Associate Professor (School of Physical and Occupational Therapy/Pediatrics; McGill University); Clinician Scientist (Trauma/Child Development Montreal Children's Hospital C-833)

BSc (Phys Ther); MSc (Biomedical Sciences) Université de Montréal; PhD (Biomedical Sciences) Université de Montréal, Post-doctoral Fellowship (Program Evaluation, Health Administration) CRIR, Université de Montréal.

Teaching areas: 

PHTH 551: PT Neurorehabilitation
PHTH 606: Introduction to pediatric physical therapy
POTH 636: Physical Therapy in Pediatrics

Current research: 

Prof. Gagnon's research program focuses on how children and adolescents function after traumatic injury as well as on how rehabilitation services can contribute to achieving the best outcomes possible. Specifically she uses various tests for balance, motor abilities and self-confidence in order to determine whether children and adolescents are ready to return to physical activities. She has developed an innovative rehabilitation approach with children who are slow to recover after a concussion or mild traumatic brain injury. Through collaborations, she is also involved in using functional and structural imaging, psychophysics and virtual reality assessments to explore how children recover after an injury. She currently leads a research group working on the development of common data elements to help researchers and clinicians speak the same language when taking care of children and teens with concussions.  

Research Areas: 
physical activity
traumatic brain injury
visual perception

Professional activities: 

Clinical Practice:

Prof. Gagnon is a physiotherapist at the Montreal Children’s Hospital of the McGill University Health Center. She practices as a clinician on a part-time basis and is involved in the assessment and treatment of infants and children with developmental disabilities, congenital torticollis and is also involved in the Trauma Programs specifically with children who sustain concussions/mild traumatic brain injuries.

Selected publications: 

Keays G, Friedman D, Gagnon I. A 20-Year Comparison of Football-Related Injuries in American and Canadian Youth Aged 6 to 17 Years: A Replication Study. Clin Pediatr (Phila). 2016 Jun;55(7):603-13. doi: 10.1177/0009922815602631.

Zemek, R., N. Barrowman, S. B. Freedman, Gravel J, Gagnon I,  McGahern C, Aglipay M,  Sangha G,  Boutis K, Beer D, Craig W, Burns, E, Farion KJ, Mikrogianakis A, Barlow K, Dubrovsky AS, Meeuwisse W, Gioia G, Meehan WP, Beauchamp MH, Kamil Y, Grool AM, Hoshizaki B,  Anderson P,  Brooks B,  Yeates KO,  Vassilyadi M, Klassen, T, Keightley M, Richer L,  DeMatteo C, Osmond M,  for the Pediatric Emergency Research Canada (PERC) Concussion Team. Clinical risk score for persistent postconcussion symptoms among children with acute concussion in the ed. JAMA (2016); 315(10): 1014-1025.

Corbin-Berrigan L-A*, Gagnon I. Post-concussion symptoms as a marker of delayed recovery in children and youth who recently sustained a concussion: A brief report. Clinical Journal of Sport Medicine  2016 Jun 22. [Epub ahead of print] DOI:10.1097/JSM.0000000000000355

Gagnon I, Friedman D, Grilli L, Iverson G. A pilot study of active rehabilitation for adolescents who are slow to recover from sport-related concussion. Scandinavian Journal of Medicine and Science in Sports. Scand J Med Sci Sports. 2016 Mar;26(3):299-306

Reed N, Greenspoon D, Reed, N, Greenspoon, D., Iverson, G.L., DeMatteo, C., Fait, P., Gauvin-Lepage, J*., Hunt, A., & Gagnon, I. The management of persistent post-concussion symptoms in youth: a randomized control trial protocol. BMJ Open 2015; 5: e008468.

Piponnier JC*, Forget R, Gagnon I, McKerral M, Giguere JF, Faubert J. First and second-order stimuli reaction time measures arehighly sensitive to mild traumatic brain injuries, J Neurotrauma. 2016 Jan 15;33(2):242-53 DOI:

Sambasivan K*, Grilli, L, Gagnon, I. Balance and Mobility in Clinically Recovered Children and Adolescents after a Mild Traumatic Brain Injury. Journal of Pediatric Rehabilitation Medicine: An Interdisciplinary Approach 8 (2015) 335–344. DOI: 10.3233/PRM-150351

Saluja RS*, Chen JK, Gagnon I, Keightley M, Ptito A. Navigational memory fMRI: A test for concussion in children. Journal of Neurotrauma.  2015. 32(10): 712-722.

 Trottier N, Gagnon I, Wiley P, Graham H, Lessard S, Emery C. Use of 3D Surface Scanner for Measurement of Deformational Plagiocephaly- a cross-sectional study. J Phys Ther. 2014; 8:51-63. 

Keays G, Gagnon I and Friedman D. (2014). Ringette-related injuries in young female players. Clinical Journal of Sports Medicine, 24(4):326-330.

Keightley ML, Saluja RS, Chen JK, Gagnon I, Leonard G, Petrides M and Ptito A. (2014). An fMRI Study Investigating Working Memory in Youth Following Sports-related Concussion: Is it Still Working? Journal of Neurotrauma, 31:437-451.

Zemek R, Osmond MH and Barrowman N on behalf of the Pediatric Emergency Research Canada (PERC) Concussion Team* (2013). Predicting and preventing postconcussive problems in paediatrics (5P) study: protocol for a prospective multicentre clinical prediction rule derivation study in children with concussion. BMJ Open, 3(8).

Turner M*, Gagnon D and Gagnon I. (2013). Effect of treatment for pediatric cancers on balance: What do we know? A review of the evidence. European Journal of Cancer Research, 22: 3-11.

Pomerleau G, Hurteau A-M, Parent L, Doucet K and Gagnon I. (2012). Developmental trajectories of infants and toddlers with good initial presentation following moderate or severe traumatic brain injury: a pilot project. Journal of Pediatric Rehabilitation Medicine. 5:89-97.

Fradette J, Gagnon I, Kennedy E, Snider L and Majnemer A. (2011). Clinical decision making regarding intervention needs of infants with torticollis. Pediatric Physical Therapy, 23:249-56.

Lessard S, Gagnon I and Trottier N. (2011). Exploring the impact of osteopathic treatment on cranial asymmetries associated with nonsynostotic plagiocephaly in infants. Complementary Therapies in Clinical Practice, 17:193-8.

Gagnon I, Galli C, Friedman D, Grilli L and Iverson GL. (2009). Active Rehabilitation for Slow-to-Recover Children Following Sport-Related Concussion. Brain Injury, 23: 956-64.

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