Course Of Respiration Rate With Reduced Diet

Description

This section is from the book "Human Vitality And Efficiency Under Prolonged Restricted Diet", by Francis G.BENEDICT, Walter R. Miles, Paul Roth, And H. Monmouth Smith. Also available from Amazon: Human Vitality and Efficiency Under Prolonged Restricted Diet.

Course Of Respiration Rate With Reduced Diet

Making due allowance for the novelty of the experiment and the necessity for getting used to the breathing-appliance attachment in the first few days, namely, during the normal diet, no striking difference between the rate with normal diet and that in the first few days of reduced diet can be observed in the majority of instances. As the research progressed, however, it can be seen that there was a distinct tendency with a number of the subjects, especially towards the end, for the respiration rate to decrease somewhat. Thus with Bro we find a tendency for the level to be somewhat above 13 respirations per minute in the early part of the experiment, but during the month of January there is a tendency for the rate to be somewhat under this. With Can the rate is at first approximately 13 or thereabouts per minute, and during January it is on the average under 12 per minute. With Kon irregularity may be noted, particularly at the beginning, but unlike most of the subjects, his respiration rate shows a tendency to increase toward the end of the experiment. With Gar a respiration rate approximating 13 or 13.5 per minute at the start slows down to about 12.5 in January. With Gul considerable variation is seen at the start, with a tendency for a slight rise in January. With the values for Mon there is no noticeable persistent change throughout the experiment. With Moy a slight fall of less than 1 respiration per minute is noted at the end of the experiment. One of the most pronounced changes in respiration rate is found with Pea, who, in the early part of the experiment, shows rates approximately 17 per minute, but during January the rate fell to nearly 14. With Pec values averaging somewhat above 14 are noted in early October, and in January the rate is about 12 per minute.

Table 108. - Daily Respiration Rate - Squad A, Post-Absorptive And In Lying Position

Date.	Bro.	Can.	Fre.	Kon.	Gar.	Gul.	Mon.	Moy.	Pea.	Pec.	Spe.	Tom.	Vea.	Daily average.
Normal diet:
Sept. 27......		12.7	...	..	11.1	.	...	...	...	...	..			...
28......	12.6	..	20.0	.....	..	..	...	..	...	..	..	....	..	..
Oct. 29......	11.8	...		..	..	...	15.5	....	19.9	...	...	...	..	..
1......	..	14.4	20.6	. • . •	14.7	10.4	....	12.2	...	.	..			14.5
2......	..	12.8	18.7	• •	14.5	....	15.6	13.0	. • •.	....	10.5	....	12.2	13.9
3......	19.4		21.6			8.4		13.9		13.2		14.1	12.4	14.7
4......	15.6	12.0	23.1	....	13.4	• • • •	16.2	....	18.1	• ■ . •	12.9	• • • .	12.4	15.5
Reduced diet:
Oct 5	12.6	12.5	20.0	• • • •	14.2	10.2	15.6	. • ■ .	....	14.9	....	11.1	....	13.9
6......	....	..	..	..	..	...	14.7	. • • .	16.0	....	13.5	12.2	11.8	13.6
7......	..	..		..	..	11.0	. • • .	13.3	..	...	13.9	14.4	11.9	12.9
8......	15.2	13.1	21.9		13.4	11.9	15.3	..	18.0	..	12.4		10.6	14.6
9...	....	....	25.2	. • • •	14.0	12.0	16.9	28.8	. • . .	14.9	. ..• ■ .	13.1	.......	15.6
10......	..	13.0			12.7	..	16.3	12.2	17.9	16.1	..		..	14.7
11......	13.7	..	19.7	..	..	11.8	..	11.8	17.7	16.3	..	..	.	15.2
12......		..		..	..	..	14.6		16.3	...	11.6		13.3	14.0
13......	13.8	13.3	21.5		14.0	13.8		12.5	..	..	..	..	..	14.8
15......	....	14.0		....	13.5	....	13.5	....	18.4	13.9	• • •	15.2	13.8	14.6
16......	13.6		23.4			13.2		12.2			10.7	14.2	12.3	14.2
17......	• • • •	13.3	....	. • • •	12.0	. • . .	14.4	■ • . •	17.3	13.0	10.4	• • • •	13.0	13.3
18......	..	...	21.5					12.4	. • • ■	13.4	11.0	..	..	14.6
19......	....	12.8	. * • .	• • • •	13.2	. • • .	16.3	12.0	. . . .	....	11.3	....	12.4	13.0
20......	14.3		22.8	..	.	...		11.4	...	..	..	13.5	..	15.5
21......	..	12.7		.	12.2		12.7	11.8	...	.	..		12.2	12.3
22......	...	..	..	..		10.2	. . . .	12.1	....	16.7	. • ■ .	14.4	. • • .	13.4
23......		...	...		12.1		14.6		17.1		10.3		11.1	13.0
24......	12.8	..	..	....	13.1	11.9	14.0	12.7	...	13.6		14.0	..	13.2
25......	14.0	12.5	. •	....	13.4	• • • .	15.7	• • • •	16.1	• • • .	10.9	• • . .	10.2	13.3
26......	12.6	..	..	...	...	..	...	...		13.5	• • • •	14.6
27......	13.4	..	..	12.7	12.8	....	.		18.1		15.7	15.1	13.1	14.4
29......	..	..	..	12.9			..			13.1	....	14.1	14.0	13.5
30......	13.9	....	....	12.4	22.6	....	14.0	12.4	....	14.4	10.7	....	13.0	14.2
31......	13.2	13.0	..		14.7	8.8	...	.	18.6	. • • .	12.4	12.5		13.3
Nov. 1......	.....		...		12.3	..	..	...			11.2	..	..	...
2......	..		..	14.9	..	..		..	..	12.0				...
3......	..		...		...		12 4	..	14 1	..	..	....	.	.
4......	13.4	11.4	...	17.2	11.5	13.6	...	11.3	..	.		..	..	13.1
5......	..	12.0	..		12.8	..	..	11.6	16.8	14.1	12.5	13.4	14.5	13.5
6......	..	..	..	12.5	..	13.4	....	..	15.0	12.1	11.3	...	12.0	12.7
7......	12.8	11.1	>.. ■ • •	17.4	12.7	12.6	■ • • ■	• • ■ •	16.5	....	11.0	....	. • • •	13.4
8......	12.1			12.4	.	..	12.1	12.2	15.1	15.2		13.3		13.2
9......	...	11.2	....	....	12.0	...	12.1	12.1	15.1	11.8		11.8	12.1	12.3
10......	14.7	• • • •	..	11.6		11.3	...	13.1	16.6	14.2	12.8	12.7	12.5	13.3
12......	13.7	12.2		17.4	12.5	16.6	15.8	..	..	..	10.4		13.6	14.0
13......	12.2	11.4	....	16.9	12.3	14.5	15.5	10.6	....	12.2	...	10.8	....	12.9
14......		12.0			12.1	...	16.7	11.9	15.2	15.0	10.3	13.3	11.9	13.2
15......	11.4			15.3		14.8	..	12.1	15,2	16,0	11 1	..	13.8	13.7
16......	13.2	11.7		15.2	13.0	13.0	14.5	..	13.0	...	11.1	..	12.4	13.0
17......	15,6	11 8		14.9	12 8	12 9	17 6	12 0	..	13 4	..	11 6		13.6
18......		11.6	....	....	12.0		13.3	12.5	15.5	14.0	10.9	13.4	10.8	12.7
19......	ii.5	....	....	17.7	....	12.4	....	12.4	13.6	12.0	10.0	11.8	11.5	12.5
20......	12.7	11.6			10.8		17.2	...	14.8	..	10.1	..	11.9	12.7
21......	12.3	12.9		12.0	13.4	14.1	16.6	11.9	..	12.8	..	12.0		13.1
22......	....	11.4	....	....	14.3	13.9	14.5	13.4	14.5		10.0	12.6	12.8	13.0
23......	13.9		. . . .	15.6	....	12.8	14.8	11.8	15.7	13.2	9.9	....	12.9	13.4
24......	13.0	11.3	....	15.7	13.5				13.2	14.5	10.6	12.6	10.7	12.8
26......	13.1	11.5	..	..	..	18.1	14.0	11,9	...	12,3	..	11 6		13.2
27......		12.0	..	..	..	13.9	16.0	..	..	..	9.8	11.2	11.9	12.5
28......	11.3	-----	-----	13.6	11.6	14.5	-----	9.1	14.7	13.1	9.9	-----	12.7	12.3

Date.	Bro.	Can.	Fre.	Kon.	Gar.	Gul.	Mon.	Moy.	Pea.	Pec.	Spe.	Tom.	Vea.	Daily average.
(Thanksgiving recess).
Reduced diet - con.
Dec. 3......	12.7	11.2	..	..	..	13.7	12.6	....	14.5	....	9.7	....	11.4	12.3
4......	11.4	7.4	..	...	13.1	13.4	. . . .	11.0	15.2	12.4	....	12.6	10.0	11.8
5......	....	11.2	..	13.4	12.3	..	15.6	. . .	....	13.3		12.3	12.1	12.9
6......	11.6	> ■ . .	...	15.1	. . . .	....	16.6	....	16.3	11.3	9.8	11.9	....	13.2
7......	14.7	11.5	..	12.3	. . . .	....	16.4	....	13.7	..	9.8	....	11.8	12.9
8......	12.5	11.3	..	..	11.9	13.1	15.7	10.1	....	12.5	9.8	10.9	....	10.9
10......	. • * .	11.6	..	....	13.6	....	13.9	13.3	13.4	15.2	10.3	14.1	13.4	13.2
11......	12.4	• • > .	..		....	11.9	....	11.1	14.8	....	9.6	12.5	10.4	11.8
12......	. • • ■	11.7	..	15.4	11.7	13.3	14.3	....	14.6	11.4	..	..	11.4	13.0
13......	12.2	10.9	...	..	10.8	10.8	13.2	10.6	13.9	....	..	12.5		11.9
14......	• • • •	12.4	..	....	10.7	....	14.3	10.7	15.7	13.9	..	12.7	11.7	12.8
15......	12.2		....	15.7	....	13.1	..	..	..	...	...	12.6	11.6	13.0
16......	10.1	12.0	..	..	12.2	..	13.2	10.0	13.0	...	..	..	10.8	11.6
17......	• • •	11.7	...	14.0	11.2	....	13.9	• • • .	....	13.4	...	13.2	....	12.9
18......	12.1	11.6	.		11.4	13.0	14.9	..	.	...	...	..	12.2	12.5
19......	13.7	• • . .	...	15.0	....	12.9	....	11.2	15.5	11.4	.	13.0	12.9	13.2
Christmas recess).
Jan. 7......	..	12.0	..	.	12.3	11.6	16.9	....	15.4	12.4				13.4
8......	..		.	..				11.8	13.3	13.0			13.0	12.8
0......	12.3	13.4	....	...	12.4	13.6	....	12.0	....	12.7	. . . .	. • ■ •	11.8	12.6
10......	..	11.1	....	..	11.3	13.5	12.1	12.2	14.9					12.5
11......	12.8	11.9	..	.	...	..	13.1	12.6	....	13.0	....	....	13.1	12.8
12......	14.2	11.8	....	14.7	. . .	....	....	• • • •	13.8	....	....	13.1	....	13.5
14......	..	.	..	14.6	13.5	14.2	12.0	...	..	..	..	13.7	12.2	13.4
15......	11.5	11.5	..	15.9	..	..	..	..	..	..	....	..	..	..
16......	12.3	12.4						10.6	15.3	13.0	. • . •	13.2	12.7	12.8
17......	..	..	..	17.3	11.9	12.7	11.8	11.5	13.7	12.2				13.0
18......	11.8	12.1	....	15.9	12.8	14.0	..	....	...	..	..	13.2	10.9	13.0
19......	12.2	13.0	....	15.9	....	• • • ■	14.9	10.6	13.3	...	...		10.6	12.9
20......	..	...	....	...	12.5	10.2	14.5	11.2	14.1	..	..	12.4		12.5
21......	12.3	12.3	..	..		12.8	14.8		....	11.7		13.0	11.3	12.6
22......		11.4		15.0	11.1			10.4	15.3	11.4		13.3		12.6
23......	11.7	....	....	15.0	10.7	....	17.3	....	....	. • • •	....	13.3	12.1	13.4
24......	11.5	....	....	16.6	....	....	....	11.8	14.3	12.1			10.9	12.9
25......	.	..	..	..	12.7	13.4	12.2	10.3	14.0	11.9	. • • .	13.1	• • • •	12.5
26......	11.6	11.5	...	11.9	11.5	13.9	14.0						10.1	12.1
28......	..	...	..			..	..	9.9	15.1	11.8	• • • •	11.9	....	12.2
29......	12.0	11.5	...	13 8	11,9	...	...	..	..	12.3		12.1	10,0	11.9
30......	11.6	11.0	..	..	..	13.7	14.4	10.6	13.8	..	..	..	11.0	12.3
31......	...	..	..	15.4	13.0	14.3				....	...	...		...
Feb. 1......	12.4	...	....	....	13.0	11.0	12.7	• • •.	14.0	....	. . . .	13.9	12.2	12.8
2......	12.2	ii.5	..	11.3		....	..	..	....	12.5	..	13.8	11.3	12.1

In spite of the fact that Spe was one of the best subjects that we had for the respiration-apparatus experiments, showing very regular breathing and almost invariably giving very concordant results, we find the respiration rate is irregular. There is a tendency, however, for the lowest values to appear during the months of November and December. His respiration rate per minute was one of the slowest of those recorded.

With Tom the general average level is not far from 14 at the start of the experiment, and settles down to about 13 in January. With Vea, except between October 27 and November 15, when the respiration rate was somewhat above 13, the rate remained most of the time between 10.5 and 12. In the latter part of January the values average very closely to the rate in the first few days of reduced diet.

With Squad A, therefore, the general picture of the respiration rate shows a slight tendency for the values to decrease somewhat from a group average of not far from 14 in October to 12.5 in January. Careful inspection of the data indicates no appreciable difference in the respiration rate, whether the subject used the mouthpiece on the portable respiration apparatus or the mask with the respiratory-valve apparatus. Table 108 gives the respiration rates for the subjects in the post-absorptive condition and in the lying position, but does not include respiration rates found with the standing position just prior to walking; these will be given in a subsequent table.

It appears very clear from an examination of the averages in the last column of table 108 that no pronounced effect upon respiration rate is to be observed as a result of the restricted diet. In the majority of instances there is a slight decrease in the respiration rate. In one or two cases there is a perceptible increase. Considering the fact that all these respiration rates were obtained with artificial breathing appliances, one may not state positively that there is a general tendency for the reduced diet to alter the respiration rate by more than one or two respirations per minute.

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Course Of Respiration Rate With Reduced Diet

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Course Of Respiration Rate With Reduced Diet

Table 108. - Daily Respiration Rate - Squad A, Post-Absorptive And In Lying Position

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