Phone: (905) 525-9140 ext: 22685
Fax: (905) 524-0069
Office: IAHS Rm. 420
Dr. Namasivayam-MacDonald is a clinically trained speech-language pathologist and Assistant Professor in the Speech-Language Pathology Program with the School of Rehabilitation Science. She completed her undergraduate degree at the University of Waterloo and both graduate degrees at the University of Toronto.
Keywords: swallowing, dementia, caregiver burden, older adults
Dr. Namasivayam-MacDonald’s research specializes in understanding the physiological features of disordered swallowing (known as dysphagia). Swallowing function is commonly disrupted after many conditions including dementia, stroke, ALS, brain injury and head and neck cancer. Her over-arching research goal is to produce clinically-relevant research to inform front-line clinical practice. Her research focuses on understanding swallowing physiology in patients with dementia in order to design targeted interventions to prevent or reverse any changes, as well as dysphagia-related caregiver burden.
Dr. Namasivayam-MacDonald is not currently accepting graduate students.
Aging Swallow Research Lab
Namasivayam-MacDonald, A.M. & Shune, S.E. (2019). The influence of swallowing impairments as an independent risk factor for burden among caregivers of aging parents: A cross-sectional study. Geriatric Nursing.
Namasivayam-MacDonald, A.M. & Riquelme, L.F. (2019). Presbyphagia to dysphagia: Multiple perspectives and strategies for quality care of older adults. Seminars in Speech and Language. 40(3), 227-242. DOI: 10.1055/s-0039-1688837
Namasivayam-MacDonald, A.M., Steele, C.M., & Keller, H.H. (2019). Swallow function and perception of dysphagia in residents of long term care. American Journal of Speech-Language Pathology. 28, 1198–1205. https://doi.org/10.1044/2019_AJSLP-18-0186
Steele, C.M., Peladeau-Pigeon, M., Barbon, C.E.A., Guida, B.T., Namasivayam-MacDonald, A.M., Nascimento, W.V., Smaoui, S., Tapson, M.S., Valenzano, T.J., Waito, A.A., & Wolkin, T. (2019). Reference values for healthy swallowing across the range from thin to extremely thick liquids. Journal of Speech, Language, and Hearing Research. 62(5), 1338-1363. https://doi.org/10.1044/2019_JSLHR-S-18-0448
Namasivayam-MacDonald, A.M., Steele, C.M., Carrier, N., Lengyel, C. & Keller, H. (2019). The relationship between texture-modified diets, mealtime duration and dysphagia risk in long term care. Canadian Journal of Dietetic Practice and Research. 80, 1-5. https://doi.org/10.3148/cjdpr-2019-004
Shune, S.E. & Namasivayam-MacDonald, A.M. (2019). Swallowing impairments increase emotional burden in spousal caregivers of older adults. Journal of Applied Gerontology. https://doi.org/10.1177/0733464818821787
Namasivayam-MacDonald, A.M. & Riquelme, L.F. (2019). Quantifying airway invasion and pharyngeal residue in patients with dementia. Geriatrics. 4(1),13. doi:10.3390/geriatrics4010013
Namasivayam-MacDonald, A.M. & Shune, S.E. (2018). The Burden of Dysphagia on Family Caregivers of the Elderly: A Systematic Review. Geriatrics. 3(2), 30. https://doi.org/10.3390/geriatrics3020030
Steele, C.M., Namasivayam-MacDonald, A.M., MacKichan, B.T. Cichero, J.A., Lam, P., Hanson, B., Duivestein, J. & Riquelme, L.F. (2018). Creation and initial validation of the IDDSI Functional Diet Scale (IDDSI-FDS). Journal of the Academy of Nutrition and Dietetics. 99(5):934-944. https://doi.org/10.1016/j.apmr.2018.01.012
Namasivayam-MacDonald, A.M., Slaughter, S., Steele, C.M., Morrison, J., Lengyel, C., Carrier, N. & Keller, H. (2018). Inadequate fluid intake in long term care residents: prevalence and determinants. Geriatric Nursing. 39(3):330-335. https://doi.org/10.1016/j.gerinurse.2017.11.004
Namasivayam-MacDonald, A. M., Barbon, C.E.A. & Steele, C.M. (2018). A review of swallow timing in the elderly. Physiology & Behavior. 184: 12-26. DOI: 10.1016/j.physbeh.2017.10.023
Namasivayam-MacDonald, A. M., Burnett, L., Nagy, A., Waito, A. & Steele, C.M. (2017). The effect of tongue strengthening to improve mealtime outcomes in long term care. American Journal of Speech-Language Pathology. 35(5): 1-78-1083. DOI: 10.1016/j.clnu.2015.08.001
Namasivayam-MacDonald, A. M., Morrison, J.M., Steele, C.M. & Keller, H. (2017). How swallow pressures and dysphagia affect malnutrition and mealtime outcomes in long term care. Dysphagia. 32(6): 785-796. DOI: 10.1007/s00455-017-9825-z