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Profil bibliographique

Jonathan D. Smirl

Informations fournies par OpenAlex. Research Africa ne déduit ni nationalité, ni poste, ni coordonnées personnelles.

157Publications signalées
4014Citations signalées
4Affiliations récentes

Les institutions déclarées

Les domaines associés

Traumatic Brain Injury and Neurovascular DisturbancesTraumatic Brain Injury ResearchOptical Imaging and Spectroscopy TechniquesHeart Rate Variability and Autonomic ControlHemodynamic Monitoring and Therapy

Les publications récentes

Accès ouvert 2026 article OpenAlex

CARE‐ing for concussions: Development of the Calgary Adapted aRm Ergometer (CARE) exertion test: A physiological alternative to the Calgary Concussion Cycle Test

Jonathan D. Smirl, Joshua Burkart, Matthew G. Neill, Jean-Michel F Galarneau et autres

Abstract Aerobic exercise testing helps facilitate recovery post‐concussion. Current protocols (Calgary Concussion Cycling Test: CCCT) are inaccessible for athletes with lower‐body impairments (i.e. Para athletes). This study compared physiological parameters for a novel arm crank test, the Calgary Adapted aRm Ergometer (CARE) …

ca, us, gb (code pays fourni par la source)

1 citation Experimental Physiology
Accès ouvert 2026 article OpenAlex

Direct Evidence for the Feedforward Neurovascular Coupling Mechanism in Humans During Task Onset: An EEG-fNIRS-TCD Multimodal Imaging Study

Joel S. Burma, Matthew G. Neill, Elizabeth K. S. Fletcher, Jina Seok et autres

This investigation assessed the neurovascular coupling response through integrated assessments of neuronal function [electroencephalography (EEG)], microvascular oxygenation concentrations [functional near-infrared spectroscopy (fNIRS)], and arterial responses [transcranial Doppler ultrasound (TCD)]. The NVC response was assessed in 113 participants (86 females, aged 19–40 years) …

ca (code pays fourni par la source)

1 citation Sensors
Accès ouvert 2026 article OpenAlex

Using reference intervals to improve interpretation of youth sport-related concussion biomarkers using a research platform

Kidus Achalu, Jennifer G Cooper, Jason B. Tabor, Mohammad Ghodsi et autres

Abstract Youth sports-related concussion (SRC) is a major health concern. Approximately 67% of Canadian youth participate in sports and recreation, and 93% of head injuries experienced in sports and recreation are concussions. SRCs are challenging to diagnose because symptoms are often subtle, …

ca (code pays fourni par la source)

0 citations Brain Communications
Accès ouvert 2025 article OpenAlex

Exercise intolerance and time to medical clearance to return to sport following sport-related concussion in adolescents

Matthew G. Neill, Lauren N. Miutz, Michaela K Chadder, Jean-Michel F Galarneau et autres

Objective: Recovery duration following adolescent sport-related concussion (SRC) is variable. Previous research revealed exercise intolerance is associated with delayed recovery (predominantly male Australian cohort). Additional sport contexts and considerations of sex are necessary. This study investigated sex-specific associations between exercise intolerance and …

ca, us (code pays fourni par la source)

2 citations BMJ Open Sport & Exercise Medicine
Accès ouvert 2025 article OpenAlex

Cerebral pressure-flow relationship directional sensitivity in healthy lowlanders and natives at high altitude

Shahrzad Soleimani Dehnavi, Jonathan D. Smirl, Marc‐Antoine Roy, Lawrence Labrecque et autres

Cerebral blood flow changes are buffered when blood pressure increases versus decreases. The current findings suggest that acute exposure and partial acclimatization to high altitude do not influence the presence of this phenomenon in lowlanders. Preservation of this hysteresis-like pattern across all …

ca, gb (code pays fourni par la source)

3 citations American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
Accès ouvert 2025 article OpenAlex

Neurophysiology of Downhill Mountain Bike Athletes—Benchmark Assessments of Event-Related Potentials

Matthew G. Neill, Elizabeth K. S. Fletcher, Ember Larson, Kristina Fraser et autres

Background: Downhill mountain biking (MTB) is a high-velocity sport where riders are potentially exposed to impacts and concussion. Rapidly obtained Event-Related Potentials (ERPs) are a promising use of portable electroencephalography for clinical assessment of concussion-related neurological impairment at the point of care. …

ca (code pays fourni par la source)

3 citations Sensors
Accès ouvert 2025 article OpenAlex

Advocates, Academics, Survivors and Clinicians to END Intimate Partner Violence (ASCEND-IPV) initiative: a prospective observational case–control study protocol to identify plasma biomarkers of intimate partner violence (IPV)-caused brain injury (BI)

Megan I Harper, Kelly A. McKinney, Shambhu Prasad Adhikari, Mohammad Ghodsi et autres

INTRODUCTION: Although as many as 92% of survivors of physical intimate partner violence (IPV) report impacts to the head and/or non-fatal strangulation (NFS) that raise clinical suspicion of brain injury (BI), there are no evidence-based methods to document and characterise BI in …

ca (code pays fourni par la source)

0 citations BMJ Open
2025 article OpenAlex

Age, power, and sport-related concussion. Is there a tension between sport performance and concussion risk in tackle football?

Matthew G. Neill, Jean-Michel F Galarneau, Ash T Kolstad, Joshua Cairns et autres

Sport-related concussion (SRC) poses a barrier to otherwise health-promoting sport participation. Tackle Football (American Football) is a popular sport with an elevated risk of SRC, which prioritises strength and conditioning. The association between physical performance, notably lower body maximal muscle power and …

ca, pe (code pays fourni par la source)

0 citations Journal of Sports Sciences
Accès ouvert 2025 article OpenAlex

Quantification of the cerebral pressure–flow relationship directional sensitivity: Reliability of shorter repeated squat–stand durations

Lawrence Labrecque, Marc‐Antoine Roy, Shahrzad Soleimani Dehnavi, Mahmoudreza Taghizadeh et autres

Abstract The magnitude of changes in middle cerebral artery mean blood velocity (MCAv) is attenuated when mean arterial pressure (MAP) increases compared with when MAP decreases. This directional sensitivity has been characterized using a time‐corrected ratio calculated on MCAv and MAP changes …

ca (code pays fourni par la source)

3 citations Experimental Physiology
Accès ouvert 2025 article OpenAlex

Effects of interval exercise and diurnal variation on blood biomarkers for sport-related concussion: A crossover cohort study

Linden C. Penner, Jason Tabor, Joel S. Burma, Heather C Godfrey et autres

OBJECTIVES: Preliminary investigation of exercise and diurnal effects on neurofilament light, glial fibrillary acidic protein, ubiquitin carboxy-terminal hydrolase L1 and total tau. METHODS: Plasma biomarkers were assayed from blood drawn before, during, immediately following, and 1, 2, 4, 6, 8, 24, and …

ca (code pays fourni par la source)

3 citations Journal of science and medicine in sport
Accès ouvert 2025 article OpenAlex

Post-prandial hyperlipidaemia impairs systemic vascular function and dynamic cerebral autoregulation in young and old male adults

Christopher J. Marley, Danielle N. Davis, Julien V. Brugniaux, Hayato Tsukamoto et autres

To what extent post-prandial hyperlipidaemia (PPH) impacts both systemic vascular function and dynamic cerebral autoregulation (dCA) is unknown. To address this, we recruited 20 healthy young males (24 + 5 y) and compared them to 21 healthy older males (67 + 6 …

gb, fr, jp, ca (code pays fourni par la source)

1 citation The Journal of Nutritional Physiology
Accès ouvert 2025 article OpenAlex

Altered autonomic cardiovascular function in adults with persisting post‐concussive symptoms and exercise intolerance

Leah J. Mercier, Samantha J. McIntosh, Joel S. Burma, Julia Batycky et autres

Alterations in autonomic cardiovascular function may result following mild traumatic brain injury (mTBI), but there is a lack of data evaluating autonomic function in adults with persisting post-concussive symptoms (PPCS). We collected resting measures of heart rate (HR), heart rate variability (HRV), …

ca (code pays fourni par la source)

2 citations Physiological Reports

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