410 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



Table 92. — Average -pulse records at morning, noon, and evening meals — Squad B} 



' Only 8 men included in these averages. ' With reduced diet. 



' Records for only four men. * Records for only two men; unrestricted diet. 



28 was 56 beats, or 7 beats lower than with full diet. The noon aver- 

 age with reduced diet was 61 beats, or 11 beats lower than with the 

 normal diet. At night the rate was lower than at noon, being 68 on 

 normal diet and 58 on restricted diet with a difference of 10 beats. 

 With Squad A the reverse was found, the evening rate being higher than 

 that recorded at noon. This may in part be explained by the fact that 

 the members of Squad A took their physical exercise between 3'*30'° and 

 5 o'clock in the afternoon while most of the men in Squad B took theirs 

 in the morning; hence the after-effect of muscular activity may have 

 influenced the pulse-rates. 



In the post-diet period we have observations for but two men. 

 These show the characteristic rise in pulse-rate which is likewise ob- 

 served with Squad A in the post-diet values obtained prior to bicycle 

 riding. (See p. 397.) The general picture, therefore, presented by 

 Squad B is in full conformity with that shown by Squad A and in addi- 

 tion we have a very clear picture of the normality of the pulse-rate 

 taken under conditions obtaining in Mr. Davis's counts. 



While these sitting pulse-rates of Squads A and B counted by the 

 subjects themselves under considerable psychical, digestive, and slight 

 muscular activity can not have the significance of careful records dur- 

 ing complete repose, they contribute important confirmatory evidence 

 as to the depressing effect of the reduced diet upon the heart rate. 



PULSE CURVES FOR SQUAD A. 



To give an indication of the general influence of the reduced diet 

 upon the pulse-rate of the men in Squad A as observed in the series 

 discussed in the previous sections, we have plotted the average values 

 and give these curves in figure 91. The values plotted include: (1) 

 the averages obtained for the basal pulse in the early morning, with 

 the subject in the post-absorptive condition, without previous activity, 

 and in the lying position; (2) the averages secured by Professor Johnson 

 immediately before work with the subject in the lying position but not 

 in the post-absorptive condition; (3) those obtained by the subjects on 

 themselves in the sitting position at the noon meal, and (4) in the same 

 position at the evening meal. 



