Physical activity improves protein utilization in young men
Open Access
- 9 March 1984
- journal article
- Published by Cambridge University Press (CUP) in British Journal of Nutrition
- Vol. 51 (02), 171-184
- https://doi.org/10.1079/bjn19840021
Abstract
1. Protein utilization in young men under circumstances of one or two periods of work and both adequate and surfeit energy intake was determined by nitrogen balance; protein intake was constant at the FAO/WHO (1973) safe level (0.57 g/kg body–weight). 2. Physical activity affected protein utilization negatively by increasing sweat and faecal N losses, and positively by supporting increased energy intake. 3. Efficiency with which surfeit energy improved N utilization (mg N retained/added kJ) was greater under circumstances of increased activity. 4. Changes in body composition as determined by total body potassium and hydrostatic weighing supported the N retention values.Keywords
This publication has 21 references indexed in Scilit:
- Effect of Exercise on Protein Turnover in ManClinical Science, 1981
- Nitrate and nitrogen balances in menThe American Journal of Clinical Nutrition, 1981
- Effect of initial muscle glycogen levels on protein catabolism during exerciseJournal of Applied Physiology, 1980
- Adaptation of protein metabolism to endurance training. Increased amino acid oxidation in response to trainingBiochemical Journal, 1977
- Human protein requirements: evaluation of the 1973 FAO/WHO safe level of protein intake for young men at high energy intakesBritish Journal of Nutrition, 1977
- Nitrogen Balance of Men with Marginal Intakes of Protein and EnergyJournal of Nutrition, 1975
- Disclosure by dietary modification of an exercise-induced protein catabolism in man.Journal of Applied Physiology, 1971
- Protein requirements in tropical countries: nitrogen losses in sweat and their relation to nitrogen balanceBritish Journal of Nutrition, 1967
- A study of the effect of overfeeding on the protein metabolism of manBiochemical Journal, 1937
- CUTANEOUS EXCRETION OF NITROGENOUS MATERIAL IN NEW ORLEANSAmerican Journal of Physiology-Legacy Content, 1926