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Resting energy metabolism and cardiovascular disease risk in resistance-trained and aerobically trained males.

• Eric. T. Poehlman, Ann Gardner, +5 authors Robert S. Tyzbir
• Metabolism: clinical and experimental
• 1992

The objectives of this study were (1) to examine differences in resting metabolic rate (RMR) and cardiovascular risk factors among aerobically trained (n = 36), resistance-trained (n = 18), and… (More)

Mechanisms of thermogenesis induced by low protein diets.

• Nancy J. Rothwell, Michael Stock, Robert S. Tyzbir
• Metabolism: clinical and experimental
• 1983

Weanling (22-day-old) rats fed a low protein (8% casein) diet consumed the same amount of energy as controls (22% casein diet), but intake corrected for body size (kJ/kg0.75) was increased in the… (More)

Changes in selected fitness parameters following six weeks of snowshoe training.

• Declan A J Connolly, Julia Henkin, Robert S. Tyzbir
• The Journal of sports medicine and physical…
• 2002

BACKGROUND Recently, there has been an increase in popularity and participation in the sport of snowshoeing. While the sport has gained considerable recognition, to date there is little or no… (More)

Influence of diet composition on serum triiodothyronine (T3) concentration, hepatic mitochondrial metabolism and shuttle system activity in rats.

• Robert S. Tyzbir, Arthur S. Kunin, Nathanial M Sims, Elizabeth J Danforth
• The Journal of nutrition
• 1981

Two experiments were conducted to determine if variations in diet composition sufficient to alter circulating triiodothyronine (T3) concentration would influence hepatic mitochondrial metabolism. In… (More)

Energy balance and mitochondrial function in liver and brown fat of rats fed "cafeteria" diets of varying protein content.

• Nancy J. Rothwell, Michael Stock, Robert S. Tyzbir
• The Journal of nutrition
• 1982

Rats fed "cafeteria" diets with low (7%, LP) normal (23%, NP) or high (33%, HP) protein contents showed increases in metabolizable energy intake (kJ/kg 0.75, 23-41%) and in energy expenditure (36%)… (More)

Thyroid function, energy balance, body composition and organ growth in protein-deficient chicks.

• E M Keagy, L. B. Carew, F. A. Alster, Robert S. Tyzbir
• The Journal of nutrition
• 1987

Protein-deficient diets (17, 10, 6.5 or 3% protein) and a 24% control diet were fed to growing chicks. A control group was pair-fed daily with each deficient group. Energy intake was lower in the 6.5… (More)

A practical equation to predict resting metabolic rate in older females.

• P J Arciero, M. I. Goran, Anne Gardner, Peter Ades, Robert S. Tyzbir, Eric. T. Poehlman
• Journal of the American Geriatrics Society
• 1993

OBJECTIVE To develop a practical and accurate age-specific equation for predicting resting metabolic rate (RMR) in older women and, thereafter, to cross-validate existing equations for predicting RMR… (More)

Effects of dietary manipulation on hepatic mitochondrial metabolism and serum triiodothyronine levels in chronically uremic rats.

• Robert S. Tyzbir, Arthur S. Kunin
• The American journal of clinical nutrition
• 1980

Influence of dietary protein levels on rat brain enzyme activities during early development.

• Robert S. Tyzbir, J G Coupain, Gary R. Beecher
• The Journal of nutrition
• 1977

Regression of brown adipose tissue mitochondrial function and structure in neonatal goats.

• Itzick Vatnick, Robert S. Tyzbir, Jonathan Welch, Antony Hooper
• The American journal of physiology
• 1987

Rapidly regressing perirenal brown adipose tissue (BAT) of neonatal goats was studied to correlate changes in mitochondrial metabolism and thermogenic capacity with changes in mitochondrial… (More)

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