39. EFFECT OF POSTURAL CHANGE OF LUNG VOLUMES: MAN 



Values for supine and sitting positions are expressed as per cent of total lung capacity. The tidal volume is 

 variable and can be assumed to be 10-15%. Values are for adult males less than 30 years of age, and for healthy 

 females 18-34 years. 



/I/ Mean of averages. IZI Mean values. /3/ Tidal volume + inspiratory reserve volume. /4/ Computed. 



Contributor : (a) Rahn, H. 



References : [l] Kaltreider. N. L., Fray, W. W., and Hyde, H. W., Am. Rev. TuheTC. Yhb^Z, 1938. 



[2] Robinson, S., Arbeitsphysiologie J£;251 , 1938. [3] Lundsgaard, C, and Van Slyke, D.. J. Exp. M. 27:65, 



1918. [4] Lundsgaard, C, and Schierbeck, K., Acta med. scand. ^8: 541, 1923. [5] Binger, C. A., J. Exp. M. 



38:445, 1923. [6] Anthony, A. J., Deut. Arch. klin. Med. J_67: 1 29, 1930. [7] Rotta, A., and Guerrero, F., Ann. 



Fac. cienc. med. 29: , 1936. [8] Rahn, H., Fenn, W. O., and Otis, A. B., J. Appl. Physiol. J^:725, 1949. 



[9] Dejours, P., and Rahn, H., ibid 5:445, 1953. (10] Hurtado, A., and Fray, W. W., J. Clin. Invest. r2:825, 



1933. [11] Osher, W. J., Am. J. Physiol. 2ii:352, 1950. [12] Bahnson, H. T., J. Appl. Physiol. 5:445, 1953. 



[13] Dow, P., ibid 127 :793, 1939. [ 14] Christie, C, and Beams, A. J., Arch. Int. M. 2£:34, 1922. 



40. EFFECT OF PREGNANCY ON LUNG VOLUMES AND OTHER VENTILATORY VARIABLES: MAN 

 Ranges in parentheses are estimate "b" of the 95% range (cf Introduction). 



Contributors : (a) Assali, N. S., (b) Jensen, A., (c) Larks, S. 



Reference : Adapted from Cugell, D. W., et al. Am. Rev. Tuberc. 67:568, 1953. 



40 



