Search Results - "McLellan, Tom M."

A review of caffeine’s effects on cognitive, physical and occupational performance by McLellan, Tom M., Caldwell, John A., Lieberman, Harris R.

“…•Caffeine in beverages and foods blocks central and peripheral adenosine receptors.•Low (40mg, 0.5mgkg−1) to moderate (300mg, 4mgkg−1) doses improve…”
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Exercise endurance 1, 3, and 6 h after caffeine ingestion in caffeine users and nonusers by Bell, Douglas G, McLellan, Tom M

“…Defence R&D Canada-Toronto, Toronto, Ontario, Canada M3M 3B9 The purpose of the present study was to examine the duration of caffeine's ergogenic effect and…”
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Perceptual versus physiological heat strain during exercise-heat stress by TIKUISIS, Peter, MCLELLAN, Tom M, SELKIRK, Glen

“…The physiological strain index (PSI) has been proposed as a universally applicable measure of exercise-heat strain. Unknown is whether this index, based on…”
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Heat acclimation, aerobic fitness, and hydration effects on tolerance during uncompensable heat stress by Cheung, Stephen S, McLellan, Tom M

“…Defence and Civil Institute of Environmental Medicine, Human Protection and Performance Section, North York M3M 3B9; Graduate Department of Community Health,…”
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Influence of circulating cytokines on prolactin during slow vs. fast exertional heat stress followed by active or passive recovery by Wright, Heather E, McLellan, Tom M, Friesen, Brian J, Casa, Douglas J, Kenny, Glen P

“…Prolactin (PRL) has been suggested as an indicator of fatigue during exertional heat stress (EHS), given its strong relationship with body core temperature…”
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Influence of aerobic fitness and body fatness on tolerance to uncompensable heat stress by Selkirk, Glen A, McLellan, Tom M

“…1  Faculty of Physical Education and Health, Exercise Science, University of Toronto, Toronto M5S 2W6; and 2  Environmental and Applied Ergonomics Section,…”
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The Effects of Protein Supplements on Muscle Mass, Strength, and Aerobic and Anaerobic Power in Healthy Adults: A Systematic Review by Pasiakos, Stefan M., McLellan, Tom M., Lieberman, Harris R.

“…Background Protein supplements are frequently consumed by athletes and recreationally active adults to achieve greater gains in muscle mass and strength and…”
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Effects of Protein Supplements on Muscle Damage, Soreness and Recovery of Muscle Function and Physical Performance: A Systematic Review by Pasiakos, Stefan M., Lieberman, Harris R., McLellan, Tom M.

“…Background Protein supplements are frequently consumed by athletes and recreationally-active individuals, although the decision to purchase and consume protein…”
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Do energy drinks contain active components other than caffeine? by McLellan, Tom M, Lieberman, Harris R

“…Energy drinks (EDs) contain caffeine and are a new, popular category of beverage. It has been suggested that EDs enhance physical and cognitive performance;…”
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The Management of Heat Stress for the Firefighter: A Review of Work Conducted on Behalf of the Toronto Fire Service by McLELLAN, Tom M., SELKIRK, Glen A.

“…This report provides a summary of research conducted through a grant provided by the Workplace Safety Insurance Board of Ontario. The research was divided into…”
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Protective clothing ensembles and physical employment standards by McLellan, Tom M, Havenith, George

“…Physical employment standards (PESs) exist for certain occupational groups that also require the use of protective clothing ensembles (PCEs) during their…”
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Caffeine improves reaction time, vigilance and logical reasoning during extended periods with restricted opportunities for sleep by Kamimori, Gary H., McLellan, Tom M., Tate, Charmaine M., Voss, David M., Niro, Phil, Lieberman, Harris R.

“…Rationale Various occupational groups are required to maintain optimal physical and cognitive function during overnight periods of wakefulness, often with less…”
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Protein supplementation for military personnel: a review of the mechanisms and performance outcomes by McLellan, Tom M

“…Protein supplement use is common among athletes, active adults, and military personnel. This review provides a summary of the evidence base that either…”
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Effects of Protein in Combination with Carbohydrate Supplements on Acute or Repeat Endurance Exercise Performance: A Systematic Review by McLellan, Tom M., Pasiakos, Stefan M., Lieberman, Harris R.

“…Background Protein supplements are consumed frequently by athletes and recreationally active adults for various reasons, including improved exercise…”
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Caffeine and energy drink use by combat arms soldiers in Afghanistan as a countermeasure for sleep loss and high operational demands by McLellan, Tom M., Riviere, Lyndon A., Williams, Kelly W., McGurk, Dennis, Lieberman, Harris R.

“…Combat deployments are characterized by high operational demands with limited opportunities for sleep leading to fatigue and degraded cognitive and operational…”
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Longitudinal trends in use of dietary supplements by U.S. Army personnel differ from those of civilians by Austin, Krista G, Price, Lori Lyn, McGraw, Susan M, McLellan, Tom M, Lieberman, Harris R

“…Prevalence and patterns of dietary supplement (DS) use by U.S. Army soldiers differ from the civilian population. Longitudinal trends in use of DSs by…”
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Soldier use of dietary supplements, including protein and body building supplements, in a combat zone is different than use in garrison by Austin, Krista G, McLellan, Tom M, Farina, Emily K, McGraw, Susan M, Lieberman, Harris R

“…United States Army personnel in garrison who are not deployed to combat theater report using dietary supplements (DSs) to promote health, increase physical and…”
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Are circulating cytokine responses to exercise in the heat augmented in older men? by Wright, Heather E, McLellan, Tom M, Larose, Joanie, Hardcastle, Stephen G, Boulay, Pierre, Kenny, Glen P

“…Age-related chronic low-grade inflammation may render older individuals more susceptible to heat illnesses. The purpose of this study was to examine the…”
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Inflammatory responses of older Firefighters to intermittent exercise in the heat by Wright-Beatty, Heather E., McLellan, Tom M., Larose, Joanie, Sigal, Ronald J., Boulay, Pierre, Kenny, Glen P.

“…Purpose Repeated strenuous work in the heat may predispose firefighters to augmented immune responses and inflammation. This study examined the immune…”
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HPA and SAS responses to increasing core temperature during uncompensable exertional heat stress in trained and untrained males by Wright, Heather E., Selkirk, Glen A., McLellan, Tom M.

“…Increases in core temperature ( T c ) augment stress hormones and neurotransmitters; however, the effect of different T c tolerated with varying fitness levels…”
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