Parcourir par auteur "Kenny, G. P."
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Aging impairs heat loss, but when does it matter?
Stapleton, J. M.; Poirier, M. P.; Flouris, A. D.; Boulay, P.; Sigal, R. J.; Malcolm, J.; Kenny, G. P. (2015)Aging is associated with an attenuated physiological ability to dissipate heat. However, it remains unclear if age-related impairments in heat dissipation only occur above a certain level of heat stress and whether this ... -
At What Level of Heat Load Are Age-Related Impairments in the Ability to Dissipate Heat Evident in Females?
Stapleton, J. M.; Poirier, M. P.; Flouris, A. D.; Boulay, P.; Sigal, R. J.; Malcolm, J.; Kenny, G. P. (2015)Studies have reported that older females have impaired heat loss responses during work in the heat compared to young females. However, it remains unclear at what level of heat stress these differences occur. Therefore, we ... -
Changes in heart rate variability during the induction and decay of heat acclimation
Flouris, A. D.; Poirier, M. P.; Bravi, A.; Wright-Beatty, H. E.; Herry, C.; Seely, A. J.; Kenny, G. P. (2014)We evaluated the changes in core temperature, heart rate, and heart rate variability (HRV) during the induction and decay of heat acclimation. Ten males (23 +/- A 3 years; 79.5 +/- A 3.5 kg; 15.2 +/- A 4.5 percent body ... -
Does type 1 diabetes alter post-exercise thermoregulatory and cardiovascular function in young adults?
McGinn, R.; Carter, M. R.; Barrera-Ramirez, J.; Sigal, R. J.; Flouris, A. D.; Kenny, G. P. (2015)Recent data demonstrated that individuals with type 1 diabetes mellitus (T1DM) exhibit impaired sweating and increased rectal temperature (i.e., heat storage) during exercise compared with healthy controls. Our purpose in ... -
Effectiveness of cold water immersion for treating exertional heat stress when immediate response is not possible
Flouris, A. D.; Friesen, B. J.; Carlson, M. J.; Casa, D. J.; Kenny, G. P. (2015)Immediate treatment with cold water immersion (CWI) is the gold standard for exertional heatstroke. In the field, however, treatment is often delayed due to delayed paramedic response and/or inaccurate diagnosis. We examined ... -
An Evaluation of the Physiological Strain Experienced by Electrical Utility Workers in North America
Meade, R. D.; Lauzon, M.; Poirier, M. P.; Flouris, A. D.; Kenny, G. P. (2015)The purpose of this study was to assess the physiological strain experienced by North American electrical utility workers during the performance of their normal work duties in heat stressed conditions. Three common job ... -
The Influence of Arc-Flash and Fire-Resistant Clothing on Thermoregulation during Exercise in the Heat
Poirier, M. P.; Meade, R. D.; McGinn, R.; Friesen, B. J.; Hardcastle, S. G.; Flouris, A. D.; Kenny, G. P. (2015)We evaluated the effect of arc-flash and fire-resistant (AFR) clothing ensembles (CE) on whole-body heat dissipation during work in the heat. On 10 occasions, 7 males performed four 15-min cycling bouts at a fixed rate of ... -
Local infusion of ascorbate augments NO-dependent cutaneous vasodilatation during intense exercise in the heat
Meade, R. D.; Fujii, N.; Alexander, L. M.; Paull, G.; Louie, J. C.; Flouris, A. D.; Kenny, G. P. (2015)Nitric oxide (NO)-dependent cutaneous vasodilatation is reportedly diminished during exercise performed at a high (700W) relative to moderate (400W) rate of metabolic heat production. The present study evaluated whether ... -
Non-invasive measurement of tibialis anterior muscle temperature during rest, cycling exercise and post-exercise recovery
Flouris, A. D.; Dinas, P. C.; Tsitoglou, K.; Patramani, I.; Koutedakis, Y.; Kenny, G. P. (2015)We introduce a non-invasive and accurate method to assess tibialis anterior muscle temperature (Tm) during rest, cycling exercise, and post-exercise recovery using the insulation disk (INDISK) technique. Twenty-six healthy ... -
Noninvasive assessment of muscle temperature during rest, exercise, and postexercise recovery in different environments
Flouris, A. D.; Webb, P.; Kenny, G. P. (2015)We introduced noninvasive and accurate techniques to estimate muscle temperature (Tm) of vastus lateralis (VL), triceps brachii (TB), and trapezius (TRAP) during rest, exercise, and postexercise recovery using the insulation ... -
Older Firefighters Are Susceptible to Age-Related Impairments in Heat Dissipation
Kenny, G. P.; Larose, J.; Wright-Beatty, H. E.; Boulay, P.; Sigal, R. J.; Flouris, A. D. (2015)Purpose: The aging-induced reduction inwhole-body heat loss (H-L) capacity generates concerns regarding the continued participation of older workers in occupations such as firefighting. We compared H-L and change in body ... -
Treatment of exertional heat stress developed during low or moderate physical work
Flouris, A. D.; Wright-Beatty, H. E.; Friesen, B. J.; Casa, D. J.; Kenny, G. P. (2014)We examined whether treatment for exertional heat stress via ice water immersion (IWI) or natural recovery is affected by the intensity of physical work performed and, thus, the time taken to reach hyperthermia. Nine adults ...