Concussion Research Program

Measuring cerebral oxygenation and blood flow

Dr. Neary is currently conducting research to investigate the pathophysiology of sport-induced concussion (mild traumatic brain injury) that is supported by the Canadian Institutes of Health Research (CIHR). The concussion research team is currently using near infrared spectroscopy (to examine cerebral oxygenation changes), transcranial Doppler (to measure cerebral blood flow), finger plethysmography using Finometer (non-invasive blood pressure measure). The specific focus of this research is to examine the apparent "neuroautonomic cardiovascular dysregulation" in concussion by examining the cerebral autoregulatory and cerebrovascular reactivity response.

Measuring exercising cerebral blood flow


Bishop, S.A., Dech, R.A., Baker, T., Butz, M., Aravinthan, K., Neary, J.P. pdf iconParasympathetic Baroreflexes and Heart Rate Variability during Acute Stage of Sport Concussion Recovery. Brain Injury, Published on-line January 4, 2017.

Bishop, S., Neary, J.P. (2015). pdf iconAutonomic, Cerebrovascular, and mTBI Physiology: Linkages and Future Applications. Current Research: Concussion, 2(2):49-58. (CIHR, SHRF)

Trevor K. Len, J. Patrick Neary, Gordon J. G. Asmundson, Darren G. Candow, David G. Goodman, Bruce Bjornson and Yagesh N. Bhambhani (2013). pdf iconSerial monitoring of CO2 reactivity following concussion using hypocapnia and hypercapnia. Brain Inj, 3. (CIHR, SHRF)

Len, T.K., Neary, J.P., Asmundson, G.J.G., Goodman, D., Bjornson, B., Bhambani, Y.N. (2011). pdf iconCerebrovascular reactivity impairment following sport-induced concussion. Med Sci Sports Exerc. 43(12), 2241-2248. (CIHR; SHRF)

Len, T.K., Neary, J.P. (2011). pdf iconCerebrovascular pathophysiology following mild traumatic brain injury. Clin Physiol Funct Imag, 31:85-33. (CIHR; SHRF)

Links of Interest:

Heads Up Concussion Institute (University of Winnipeg):

UK Rugby Health Project: