Michael C Riddell


Graduate Program Director

Locations / Contact Info:

225 Lumbers - LUM
Keele Campus
Phone (Lab): 416 736 2100 Ext. 22324

Email address(es):


Web site(s):


Faculty & School/Dept.

Faculty of Health - School of Kinesiology & Health Science


PhD - 2000
McMaster University
Hamilton, ON


Dr. Michael Riddell is a Full Professor in the School of Kinesiology and Health Science at York and the founder of the York University Diabetes Sports Camp. His global interests center on the effects of exercise and stress on diabetes and metabolism. He is the Principle Investigator for the Canadian Foundation for Innovation Exercise Physiology & Endocrinology Laboratory for the Study of the Metabolic Syndrome and Diabetes.


Dr. Riddell is also a founder and Chair of the Scientific Advisory Board for Zucara Therapeutics Inc., a spin-off company from The Centre for Drug Research and Development and MaRS Innovation that is advancing a novel technology that prevents hypoglycemia in insulin-treated diabetes. He is also a Senior Scientist at LMC Diabetes and Manna Research in Toronto where he leads clinical studies on glucose management strategies for exercise in type 1 diabetes.


Dr. Riddell has published more than 170 peer-reviewed journal articles, 20 book chapters, and one patient guidebook on the metabolic and hormonal responses to exercise and stress in diabetes. He has authored several international guidelines on exercise and diabetes and he engages with several community-based diabetes sports and exercise programs, including Dskate- a hockey camp for kids living with type 1 diabetes. He has over 200 invited scholarly talks and keynote lectures at various academic, scientific, professional and public events.


A recipient of the Faculty of Health Dean’s Established Career Research Award, Riddell currently holds research grants from various funding agencies and industry partners totaling ~$4M. His research team uses a broad selection of innovative models and techniques to discover how regular exercise, stress and diabetes influence metabolism and health.

Selected Publications

Please see Dr. Riddell's website at www.yorku.ca/mriddell/

1: Riddell MC, Pooni R, Fontana FY, Scott SN. Diabetes Technology and Exercise. Endocrinol Metab Clin North Am. 2020 Mar;49(1):109-125.

 2: Zaharieva DP, Cinar A, Yavelberg L, Jamnik V, Riddell MC. No Disadvantage to Insulin Pump Off vs Pump On During Intermittent High-Intensity Exercise in Adults With Type 1 Diabetes. Can J Diabetes. 2019 Jun 7. pii: S1499-2671(18)31006-2. doi: 10.1016/j.jcjd.2019.05.015. [Epub ahead of print] PubMed PMID: 31416695.

3: Scott SN, Anderson L, Morton JP, Wagenmakers AJM, Riddell MC. Carbohydrate Restriction in Type 1 Diabetes: A Realistic Therapy for Improved Glycaemic Control and Athletic Performance? Nutrients. 2019 May 7;11(5). pii: E1022. doi: 10.3390/nu11051022. Review. PubMed PMID: 31067747; PubMed Central PMCID: PMC6566372.

4: Zaharieva DP, Turksoy K, McGaugh SM, Pooni R, Vienneau T, Ly T, Riddell MC. Lag Time Remains with Newer Real-Time Continuous Glucose Monitoring Technology During Aerobic Exercise in Adults Living with Type 1 Diabetes. Diabetes Technol Ther. 2019 Jun;21(6):313-321. doi: 10.1089/dia.2018.0364. Epub 2019 May 6. PubMed PMID: 31059282; PubMed Central PMCID: PMC6551983.

5: Zaharieva DP, McGaugh S, Pooni R, Vienneau T, Ly T, Riddell MC. Improved Open-Loop Glucose Control With Basal Insulin Reduction 90 Minutes Before Aerobic Exercise in Patients With Type 1 Diabetes on Continuous Subcutaneous Insulin Infusion. Diabetes Care. 2019 May;42(5):824-831. doi: 10.2337/dc18-2204. Epub 2019 Feb 22. PubMed PMID: 30796112.

6: Riddell MC, Pooni R, Yavelberg L, Li Z, Kollman C, Brown RE, Li A, Aronson R. Reproducibility in the cardiometabolic responses to high-intensity interval exercise in adults with type 1 diabetes. Diabetes Res Clin Pract. 2019 Feb;148:137-143. doi: 10.1016/j.diabres.2019.01.003. Epub 2019 Jan 11. PubMed PMID: 30641168.

7: Riddell MC, Zaharieva DP, Tansey M, Tsalikian E, Admon G, Li Z, Kollman C, Beck RW. Individual glucose responses to prolonged moderate intensity aerobic exercise in adolescents with type 1 diabetes: The higher they start, the harder they fall. Pediatr Diabetes. 2019 Feb;20(1):99-106. doi: 10.1111/pedi.12799. Epub 2018 Dec 13. PubMed PMID: 30467929.

Other Research Outputs



JDRF Peak Performance
expert member


Faculty of Health Established Researcher Award - 2013


Currently available to supervise graduate students: Yes

Currently taking on work-study students, Graduate Assistants or Volunteers: Yes

Available to supervise undergraduate thesis projects: Yes

Current Research

The effects of exercise and stress hormones on metabolism in health and disease with a particular emphasis on diabetes mellitus.

Research Projects

Canadian Glycomics Network (GlycoNet) Strategic Initiatives Grant: DO-19, “Elucidating the role of somatostatin in dysglycemia in a rodent model of type 2 diabetes
Role: Principal Investigator
Amount funded: $65,000
Year Funded: 2020
Duration: 1
Funded by: Other...
Other funding: 1. Canadian Glycomics Network (GlycoNet) Strategic Initiatives Grant

Type-1 Diabetes and Exercise Initiative (T1-Dexi) Grant
Role: Principal Investigator
Amount funded: $9,000
Year Funded: 2020
Duration: 1
Funded by: Other...
Other funding: Helmsley Trust

Additional Signals for Next Generation AP Systems RFA: Improving the Daily Lives of People with Type 1 Diabetes by Meeting the Challenges of Glucose Control through the Development of a Next-Generatio
Role: CoInvestigator
Amount funded: $898,123
Year Funded: 2018
Duration: 2
Funded by: Other...
Other funding: JDRF and Helmsley Trust

NSERC Operating Grant: Role of somatostatin signaling on pancreatic islet function and energy homeostasis.
Role: Principal Investigator
Amount funded: $200,000
Year Funded: 2018
Duration: 5
Funded by: Natural Sciences and Engineering Research Council

3. JDRF Industry Development and Discovery Program (IDDP). Preclinical drug development of somatostatin receptor 2 antagonists for the prevention of recurrent hypoglycemia in type 1 diabetes
Role: Principal Investigator
Amount funded: $400,000
Year Funded: 2017
Duration: 4
Funded by: Other...
Other funding: JDRF

Curriculum Vitae (C.V. file):

CV of Michael C Riddell