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October 1950

FACTORS INFLUENCING RETENTION OF NITROGEN AND CALCIUM IN PERIOD OF GROWTH: VIII. Influence of Rest and Activity

Author Affiliations

DETROIT
From the Department of Pediatrics, Henry Ford Hospital.

AMA Am J Dis Child. 1950;80(4):551-565. doi:10.1001/archpedi.1950.04040020563004
Abstract

REST has been accepted until recent years as a principle of treatment of many chronic illnesses, notably tuberculosis and rheumatic heart disease. To the extent that the retentions of nitrogen and calcium can be taken as paralleling healing (and in tuberculosis it is felt that healing correlates with adequate storage of nitrogen and calcium in the growth period1 ), the known depressing effects of inactivity on their retention would make the employment of this measure questionable unless it could be shown that other desirable effects offset this disadvantage. Even then, however, thought should be given to the possibility of securing the worth while effects of activity without sacrificing any gains achieved by rest.

In a recent symposium on this subject, internist, surgeon, orthopedist, psychiatrist and cardiologist joined in questioning the value and indicating the harmful effects of prolonged bed rest on the basis of clinical observations. Harrison,2 in addition,

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