31. VITAL CAPACITY VS AGE: CHILDREN AND ADOLESCENTS 



Ventilatory values have been corrected to BTPS conditions (cf Page 1). Values in parentheses are ranges. Age 

 ranges conform to estimate "c" of the 95% range (cf Introduction). Vital capacity ranges of Ferris and Shock 

 conform to estimate "b" of the 95% range; those of Morse conform to estimate "c." 



Males 



/I/ Maximal volume of gas expelled from the lungs by forceful effort, following a maximal inspiration. Ill Subjects 

 seated; body surface area obtained from DuBois nomogram; Benedict-Roth type spirometer (Collins ventilometer). 

 HI All measurements made in recumbent position; Sanborn closed-circuit wet spirometer. /4/ From single 

 determination. 



Contributors : (a) Ferris, B. G., Jr., (b) Morrow, P. E., (c) Morse, M., (d) Shock, N. W., (e) Whittenberger, J. L. 



R efer e nces : [ l] Ferris, B. G. , Jr., Whittenberger, J. L., and Gallagher, J. 

 12] Ferris, B. G., Jr., and Smith, C. W., ibid 12:341, 1953. [3] Morse, M. 

 J. Clin. Invest. 31^:380, 1952. 1 4] Morse, M., Univ. of Chicago, unpublished. 

 Gerontology Branch. National Institutes of Health, unpublished. 



R.. Pediatrics. Springf, 9:659. 1952. 



Schlutz. F. *., and Cassels, D. E., 



[5] Shock, N. W., and Norris, A. H., 



30 



