Donald M. Watkin, M.D., F.A.C.P.; John B. Das, M.B.; M. Constance McCarthy, B.S.
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In a series of studies designed to evaluate protein requirements during strenuous work performed daily for long periods of time, subjects receiving lower (0.4 g/kg/day) and higher (1.2 g/kg/day) levels of high quality protein and limited calories (35 cal/kg/day) were evaluated for cardiovascular performance before, during, and after work phases ranging from 20 to 44 days. Work equivalent to about 1,200 cal daily was performed by subjects' walking 1 hour twice daily on motor driven treadmills set at 4 mph and a 10% grade. Additional subjects consuming identical diets but performing no work served as absolute controls. Whereas all participants
Watkin DM, Das JB, McCarthy MC. Dietary Protein and Cardiovascular Performance.. Ann Intern Med. 1964;60:710. doi: 10.7326/0003-4819-60-4-710_2
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Published: Ann Intern Med. 1964;60(4):710.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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