Research Topics
| Francois HamanSummaryAffiliation: University of Ottawa Country: Canada Publications
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Detail Information
Publications
Metabolic requirements of shivering humansFrancois Haman
Faculty of Health Sciences, University of Ottawa and Behavioral and Metabolic Research Unit, Montfort Hospital, Ottawa, Ontario, Canada
Front Biosci (Schol Ed) 2:1155-68. 2010..Combining fundamental principles surrounding metabolic fuel selection with applied knowledge of human performance in the cold may allow important breakthroughs in this field of research...
Fueling shivering thermogenesis during passive hypothermic recoveryFrancois Haman
Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
J Appl Physiol 103:1346-51. 2007..Further research should focus on establishing the exact regulatory processes involved in achieving this large upregulation of CHO utilization rate following hypothermia...
Shivering in the cold: from mechanisms of fuel selection to survivalFrancois Haman
Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
J Appl Physiol 100:1702-8. 2006..By combining fundamental research on fuel metabolism and applied strategies to improve shivering endurance, future research in this area promises to yield important new information on what limits human survival in the cold...
Partitioning oxidative fuels during cold exposure in humans: muscle glycogen becomes dominant as shivering intensifiesFrancois Haman
Faculty of Health Sciences, University of Ottawa, 125 University St, Ottawa, Ontario, Canada K1N 6N5
J Physiol 566:247-56. 2005....
Obesity and type 2 diabetes in Northern Canada's remote First Nations communities: the dietary dilemmaF Haman
Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Int J Obes (Lond) 34:S24-31. 2010..It also highlights some of the complexities of establishing exact physiological causes and providing effective solutions...
Effects of carbohydrate availability on sustained shivering I. Oxidation of plasma glucose, muscle glycogen, and proteinsFrancois Haman
Biology Department, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
J Appl Physiol 96:32-40. 2004..We conclude that humans can show remarkable flexibility in oxidative fuel selection to ensure that heat production is not compromised during sustained cold exposure...
Fuel selection during intense shivering in humans: EMG pattern reflects carbohydrate oxidationFrancois Haman
Biology Department, University of Ottawa, 30 Marie Curie, Ottawa, Ontario, Canada K1N 6N5
J Physiol 556:305-13. 2004..Future work should focus on the study of shivering bursts that may provide essential clues on what limits human survival in the cold...
Effects of two glucose ingestion rates on substrate utilization during moderate-intensity shiveringDenis P Blondin
Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, 125 University St, Ottawa, ON, K1N 6N5, Canada
Eur J Appl Physiol 108:289-300. 2010..In conclusion, glucose ingestion even at low rates contributes a significant proportion of total heat production during moderate intensity shivering and reduces the utilization of liver-derived glucose but not muscle glycogen...
Effects of ingesting [13C]glucose early or late into cold exposure on substrate utilizationDenis P Blondin
Institut de Recherche de l Hôpital Montfort, Faculty of Health Sciences, University of Ottawa, 125 Univ St, Ottawa, Ontario, Canada K1N 6N5
J Appl Physiol 109:654-62. 2010..This substrate not only provides an auxiliary fuel source for shivering thermogenesis, but, more importantly, preserves the limited endogenous glucose reserves...
Effects of the menstrual cycle on muscle recruitment and oxidative fuel selection during cold exposureDenis P Blondin
Faculty of Health Sciences, University of Ottawa, and Unité de Recherche sur la Nutrition et le Métabolisme, Institut de Recherche de l Hôpital Montfort, Hôpital Montfort, Ottawa, Ontario, Canada
J Appl Physiol 111:1014-20. 2011..Whether the large contribution of lipids to total heat production in fuel selection confers a survival advantage remains to be established...
Dysregulation of cytokine response in Canadian First Nations communities: is there an association with persistent organic pollutant levels?Pascal Imbeault
Behavioral and Metabolic Research Unit, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
PLoS ONE 7:e39931. 2012....
Effects of carbohydrate availability on sustained shivering II. Relating muscle recruitment to fuel selectionFrancois Haman
Biology Dept, Univ of Ottawa, 30 Marie Curie, Ottawa, Ontario, Canada K1N 6N5
J Appl Physiol 96:41-9. 2004..During low-intensity shivering, humans are therefore able to sustain the same thermogenic rate by oxidizing widely different fuel mixtures within the same muscle fibers...
Fuel selection in Wistar rats exposed to cold: shivering thermogenesis diverts fatty acids from re-esterification to oxidationEric Vaillancourt
University of Ottawa, Department of Biology, 30 Marie Curie, PO Box 450, Station A, Ottawa, Ontario, Canada K1N 6N5
J Physiol 587:4349-59. 2009..Reallocation of fatty acids from re-esterification to oxidation is a novel, alternative strategy used by the rat to support shivering...
Increased proliferative effect of organochlorine compounds on human preadipocytesNatalie A Chapados
Montfort Hospital Research Institute, Nutrition and Metabolism Research Unit, Montfort Hospital, 713 Montreal Road, Pavilion E, 1st Floor, room 2E132, Ottawa, ON K1K 0T2, Canada
Mol Cell Biochem 365:275-8. 2012..These findings suggest that exposure to some OCs and concentrations increase the proliferative capacity of human preadipocytes...
Warming by immersion or exercise affects initial cooling rate during subsequent cold water immersionChris G Scott
Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ontario, Canada
Aviat Space Environ Med 75:956-63. 2004..Thus, functional time and possibly survival time could be reduced when cold water immersion is preceded by whole-body passive warming, and to a lesser degree by active warming...
Coingesting glucose and fructose in the cold potentiates exogenous CHO oxidationDenis P Blondin
Nutrition and Metabolism Research Unit, Montfort Hospital, Ottawa, Ontario, Canada
Med Sci Sports Exerc 44:1706-14. 2012....
The relationship of the burbot (Lota lota L.) to the reintroduction of off-the-land foods in the Sandy Lake First Nation CommunityMichael A Robidoux
School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Biodemography Soc Biol 55:12-29. 2009....
Cold exposure increases adiponectin levels in menPascal Imbeault
Behavioural and Metabolic Research Unit Montfort Hospital, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ontario, Canada K1N 6N5
Metabolism 58:552-9. 2009..The rise in adiponectin levels observed during shivering is inhibited with glucose ingestion but not after diets varying in CHO content...
Obesity and type 2 diabetes prevalence in adults from two remote first nations communities in northwestern ontario, CanadaPascal Imbeault
Behavioral and Metabolic Research Unit, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, 125, University Street room 350, Ottawa, ON, Canada K1N 6N5
J Obes 2011:267509. 2011..Using objective measurements, this study confirms that First Nations adults from remote communities of Canada continue to experience a disproportionately higher prevalence of obesity and type 2 diabetes than nonaboriginal Canadians...
Energetics of a long-distance migrant shorebird (Philomachus pugnax) during cold exposure and runningEric Vaillancourt
Biology Department, University of Ottawa, Ottawa, Ontario, Canada
J Exp Biol 208:317-25. 2005..The exact mechanisms allowing birds to use lipids at extremely high rates are still largely unexplored, and quantifying the relative importance of different fuels during long-distance flight remains a major challenge for future research...
