Research Topics
| Ollie JaySummaryAffiliation: University of Ottawa Country: Canada Publications
| Collaborators
|
Detail Information
Publications
Influence of adiposity on cooling efficiency in hyperthermic individualsBruno Lemire
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, 125 University, Ottawa, Ontario, Canada
Eur J Appl Physiol 104:67-74. 2008..239) was not different between groups. These results suggest that a difference of approximately 10% of body adiposity does not affect core cooling rates in active individuals under 25% body fat rendered hyperthermic by exercise...- Estimating changes in volume-weighted mean body temperature using thermometry with an individualized correction factorOllie Jay
Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Am J Physiol Regul Integr Comp Physiol 299:R387-94. 2010..66/0.34 describing 74%, 84%, and 82% of the variation observed in DeltaT(b) from calorimetry after 30, 60, and 90 min, respectively... - Heat exposure in the Canadian workplaceOllie Jay
School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Am J Ind Med 53:842-53. 2010..Work is on-going, particularly in the European Union to develop an improved individualized heat stress risk assessment tool. More work is required to improve the predictive capacity of these indices... 
Differences in finger skin contact cooling response between an arterial occlusion and a vasodilated conditionOllie Jay
Department of Human Sciences, Environmental Ergonomics Research Centre, Loughborough University, Leicestershire, United Kingdom
J Appl Physiol 100:1596-601. 2006..5 N), circulating blood provides a heat input source that significantly affects finger skin contact cooling during a vasodilated state...- Large differences in peak oxygen uptake do not independently alter changes in core temperature and sweating during exerciseOllie Jay
Thermal Ergonomics Laboratory, School of Human Kinetics, University of Ottawa, Ottawa, Ontario Canada
Am J Physiol Regul Integr Comp Physiol 301:R832-41. 2011..22) and REL (P = 0.77) trials. In conclusion, changes in core temperature and sweating during exercise in a neutral climate are determined by H(prod), mass, and BSA, not Vo(₂ peak)... - A three-compartment thermometry model for the improved estimation of changes in body heat contentOllie Jay
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
Am J Physiol Regul Integr Comp Physiol 292:R167-75. 2007..It is concluded that a major source of error in the estimation of DeltaH(b) using the traditional two-compartment thermometry model is the lack of an expression independently representing the heat storage in muscle during exercise... - Can supine recovery mitigate the exercise intensity dependent attenuation of post-exercise heat loss responses?Glen P Kenny
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
Appl Physiol Nutr Metab 33:682-9. 2008..Supine recovery attenuates the post-exercise reductions in MAP, CVC, and sweat rate in a manner dependent directly on exercise intensity. This effect is likely attributable to a non-thermal baroreceptor mechanism... - Menstrual cycle and oral contraceptive use do not modify postexercise heat loss responsesGlen P Kenny
University of Ottawa, School of Human Kinetics, 125 University, Ottawa, Ontario, Canada
J Appl Physiol 105:1156-65. 2008..No effect of OC use was observed. We conclude that neither menstrual cycle nor OC use modifies the magnitude of the postexercise elevation in Th(vd) and Th(sw)... - Heat balance and cumulative heat storage during intermittent bouts of exerciseGlen P Kenny
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Med Sci Sports Exerc 41:588-96. 2009..Whole-body heat loss (H x L) and changes in body heat content (Delta Hb) were measured using simultaneous direct whole-body and indirect calorimetry... 
Aural canal, esophageal, and rectal temperatures during exertional heat stress and the subsequent recovery periodDaniel Gagnon
School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
J Athl Train 45:157-63. 2010..However, little information is available about how different measurements of body temperature respond during and after exertional heat stress...- Human heat balance during postexercise recovery: separating metabolic and nonthermal effectsOllie Jay
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
Am J Physiol Regul Integr Comp Physiol 294:R1586-92. 2008..Evidence for nonthermal influences upon heat loss responses must therefore be sought after accounting for differences in heat production... - Postexercise heat loss and hemodynamic responses during head-down tilt are similar between gendersW Shane Journeay
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Canada
Med Sci Sports Exerc 39:1308-14. 2007.... - Estimating changes in mean body temperature for humans during exercise using core and skin temperatures is inaccurate even with a correction factorOllie Jay
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
J Appl Physiol 103:443-51. 2007.... - Sex differences in postexercise esophageal and muscle tissue temperature responseGlen P Kenny
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
Am J Physiol Regul Integr Comp Physiol 292:R1632-40. 2007.... - Heat balance and cumulative heat storage during exercise performed in the heat in physically active younger and middle-aged menGlen P Kenny
Human and Environmental Physiology Research Unit, Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, 125 University, Ottawa, Ontario, Canada
Eur J Appl Physiol 109:81-92. 2010..24 +/- 0.14 degrees C for W and 0.33 +/- 0.21 and 0.33 +/- 0.13 degrees C for H). We conclude that highly trained middle-aged men demonstrate a similar capacity for heat dissipation when compared with physically active younger men... - Sex-related differences in evaporative heat loss: the importance of metabolic heat productionDaniel Gagnon
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, University of Ottawa, 125 University, Montpetit Hall, Ottawa, ON K1N 6N5, Canada
Eur J Appl Physiol 104:821-9. 2008..To compare thermoregulatory function between sexes, differences in metabolic heat production must therefore be accounted for... - Sweating is greater in NCAA football linemen independently of heat productionTomasz M Deren
Thermal Ergonomics Laboratory, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Med Sci Sports Exerc 44:244-52. 2012..The study's purpose was to investigate whether differences in local sweat rates on the upper body between American football linemen (L) and backs (B) exist independently of differences in metabolic heat production... - Does summer in a humid continental climate elicit an acclimatization of human thermoregulatory responses?Anthony R Bain
Thermal Ergonomics Laboratory, School of Human Kinetics, University of Ottawa, 200 Lees Avenue, Ottawa, ON, K1N 6N5, Canada
Eur J Appl Physiol 111:1197-205. 2011..The apparent lack of heat acclimatization could be due to frequent air-conditioning use and an avoidance of outdoor activity during the hottest times of day but may also be due to a lack of environmental stimulus... - Hyperthermia modifies the nonthermal contribution to postexercise heat loss responsesDaniel Gagnon
School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Med Sci Sports Exerc 40:513-22. 2008.... - Describing individual variation in local sweating during exercise in a temperate environmentAnthony R Bain
Thermal Ergonomics Laboratory, School of Human Kinetics, University of Ottawa, 200 Lees Avenue, Ottawa, ON, K1N 6N5, Canada
Eur J Appl Physiol 111:1599-607. 2011..79, P = 0.002) and LSR(arm) (r = 0.89, P < 0.001) correlated with WBSR(ss). In conclusion, the individual variation in WBSR(ss), LSR(head) and LSR(arm) is described by the ratio of E (req) relative to E (max)... - Skin cooling on contact with cold materials: the effect of blood flow during short-term exposuresOllie Jay
Human Thermal Environments Laboratory, Department of Human Sciences, Loughborough University, Leicestershire LE11 3TU, UK
Ann Occup Hyg 48:129-37. 2004..Further protocol improvements are also recommended... - Core temperature differences between males and females during intermittent exercise: physical considerationsDaniel Gagnon
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, University of Ottawa, 125 University PVT, Ottawa, ON, Canada
Eur J Appl Physiol 105:453-61. 2009..97 +/- 0.26 degrees C, p <OR= 0.05). Differences in core temperature between sexes appear to be solely related to differences in physical characteristics, and not due to concurrent differences in whole-body thermoregulatory responses... - 15 degrees head-down tilt attenuates the postexercise reduction in cutaneous vascular conductance and sweating and decreases esophageal temperature recovery timeNatalie H McInnis
Laboratory of Human Bioenergetics and Environmental Physiology, University of Ottawa, School of Human Kinetics, Ottawa, Ontario, Canada K1N 6N5
J Appl Physiol 101:840-7. 2006..In conclusion, extended recovery from dynamic exercise in the 15 degrees HDT position attenuates the reduction in CVC and sweating, thereby significantly increasing the rate of T(es) decay compared with recovery in the URS posture... - Disturbance of thermal homeostasis following dynamic exerciseGlen P Kenny
Laboratory for Human Bioenergetics and Environmental Physiology, Faculty of Health Sciences, School of Human Kinetics, 125 University Ave, Montpetit Hall, University of Ottawa, Ottawa, ON K1N 6N5, Canada
Appl Physiol Nutr Metab 32:818-31. 2007..The following review will examine the etiology of the post-exercise disturbance in thermal homeostasis and evaluate possible thermal and nonthermal factors associated with a prolonged hyperthermic state following exercise... - Differences between sexes in rectal cooling rates after exercise-induced hyperthermiaBruno B Lemire
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
Med Sci Sports Exerc 41:1633-9. 2009..We evaluated differences between sexes in core cooling rates during cold water immersion after exercise-induced hyperthermia... - Evidence of a greater onset threshold for sweating in females following intense exerciseGlen P Kenny
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, 125 University, Montpetit Hall, Room 367, PO Box 450 Station A, Ottawa, ON, Canada
Eur J Appl Physiol 101:487-93. 2007..05). In conclusion, females demonstrate a greater postexercise onset threshold for sweating, which is paralleled by a greater postexercise hypotensive response following intense exercise... - Calorimetric measurement of postexercise net heat loss and residual body heat storageGlen P Kenny
Laboratory of Human Bioenergetics and Environmental Physiology, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Med Sci Sports Exerc 40:1629-36. 2008..Whole-body evaporative (H(E)) and dry (H(D)) heat loss as well as changes in body heat content (DeltaH(b)) were measured using simultaneous direct whole-body and indirect calorimetry... - Local sweating on the forehead, but not forearm, is influenced by aerobic fitness independently of heat balance requirements during exerciseMatthew N Cramer
Thermal Ergonomics Laboratory, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
Exp Physiol 97:572-82. 2012.... - Finger skin cooling on contact with cold materials: a comparison between male and female responses during short-term exposuresOllie Jay
Human Thermal Environments Laboratory, Department of Human Sciences, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
Eur J Appl Physiol 91:373-81. 2004..This study showed females to be at a higher risk during contact with cold objects... - Postexercise hypotension causes a prolonged perturbation in esophageal and active muscle temperature recoveryGlen P Kenny
Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Am J Physiol Regul Integr Comp Physiol 291:R580-8. 2006.... - The effect of exercise training on resting metabolic rate in type 2 diabetes mellitusAlison E Jennings
Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
Med Sci Sports Exerc 41:1558-65. 2009.... - A comparison between the technical absorbent and ventilated capsule methods for measuring local sweat rateNathan B Morris
Thermal Ergonomics Laboratory, School of Human Kinetics, University of Ottawa, Ontario, Canada
J Appl Physiol 114:816-23. 2013..12 and 0.05 mg · min(-1) · cm(-2) for TA and VC methods, respectively. These data support the TA method as a reliable alternative for measuring the rate of sweat appearance on the skin surface... - Compensatory hyperhidrosis following thoracic sympathectomy: a biophysical rationaleMatthew N Cramer
Thermal Ergonomics Laboratory, School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ontario, Canada
Am J Physiol Regul Integr Comp Physiol 302:R352-6. 2012.... - Physical work capacity in older adults: implications for the aging workerGlen P Kenny
Center for Human and Environmental Physiology Research, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Am J Ind Med 51:610-25. 2008..The purpose of this review is to examine the physiological adaptations to aging, the impact of aging on performance and the benefits of physical fitness in improving functional work capacity in aging individuals... - Human face-only immersion in cold water reduces maximal apnoeic times and stimulates ventilationOllie Jay
Laboratory for Exercise and Environmental Physiology, 8888 University Drive, School of Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada
Exp Physiol 92:197-206. 2007.... - The combined effects of local contact force and lower arm cooling upon cutaneous blood cell velocity of the fingertipOllie Jay
Laboratory for Exercise and Environmental Physiology, School of Kinesiology, Simon Fraser University, 8888 University Drive, Burnaby, BC, Canada, V5A 1S6
Eur J Appl Physiol 97:332-9. 2006..Although decay constants became progressively greater at lower water temperature conditions, a cooler hand also had a lower initial and subsequently smaller decrements in CBV with increases of FCF... - The effects of hyperthermia and hypoxia on ventilation during low-intensity steady-state exerciseAaron L Chu
School of Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada
Am J Physiol Regul Integr Comp Physiol 292:R195-203. 2007.... - Maximum effort breath-hold times for males and females of similar pulmonary capacities during sudden face-only immersion at water temperatures from 0 to 33 degrees COllie Jay
Laboratory for Exercise and Environmental Physiology, School of Kinesiology, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
Appl Physiol Nutr Metab 31:549-56. 2006....