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Effect of varying energy and protein intake on nitrogen balance in adults engaged in heavy manual labour. 1979

A Iyengar, and B S Narasinga Rao

1. The effect of varying energy and protein intake on nitrogen balance in adult men engaged in heavy manual labour was investigated. 2. Low protein and energy levels resulted in negative N balance and urea index (Waterlow, 1963) was decreased. 3. Urinary excretion of hydroxyproline was found to be sensitive to dietary protein level, but not to energy.

UI MeSH Term Description Entries
D008297 Male Males
D009584 Nitrogen An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
D002149 Energy Intake Total number of calories taken in daily whether ingested or by parenteral routes. Caloric Intake,Calorie Intake,Intake, Calorie,Intake, Energy
D003404 Creatinine Creatinine Sulfate Salt,Krebiozen,Salt, Creatinine Sulfate,Sulfate Salt, Creatinine
D004032 Diet Regular course of eating and drinking adopted by a person or animal. Diets
D004044 Dietary Proteins Proteins obtained from foods. They are the main source of the ESSENTIAL AMINO ACIDS. Proteins, Dietary,Dietary Protein,Protein, Dietary
D005082 Physical Exertion Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included. Physical Effort,Effort, Physical,Efforts, Physical,Exertion, Physical,Exertions, Physical,Physical Efforts,Physical Exertions
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006909 Hydroxyproline A hydroxylated form of the imino acid proline. A deficiency in ASCORBIC ACID can result in impaired hydroxyproline formation. Oxyproline,4-Hydroxyproline,cis-4-Hydroxyproline,4 Hydroxyproline,cis 4 Hydroxyproline
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths

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