60 
MUSCULAK WORK 
Table 66. 
-Results with subject M. A. M. (without food, following 1 day with carbohydrate- 
rich diet). 
Date and time. 
Duration. 
Carbon 
dioxide 
eliminated 
per minute. 
Oxygen 
absorbed 
per 
minute. 
Respira- 
tory 
quotient. 
Aver- 
age 
pulse- 
rate. 
Average 
respira- 
tion-rate. 
Cur- 
rent. 
Revolu- 
tions per 
minute. 
Feb. 14, 1912.1 
Lying: 
8i" 36" a.m.* 
9 00 a.m 
9 23 a.m 
Work: 
9 h 59 m a.m. 8 
10 38 a.m.* 
Lying: 
11>>07 a.m.' 
11 28 a.m 
11 49 a.m 
min. sec. 
14 56 
15 13 
15 45 
10 10 
14 26 
14 33 
14 50 
14 48 
c.c. 
206 
194 
207 
2,183 
1,899 
231 
201 
213 
c.c. 
239 
232 
233 
2,436 
2,009 
295 
264 
269 
0.87 
.84 
.89 
.90 
.95 
.78 
.76 
.79 
60 
60 
60 
<162 
161 
92 
85 
85 
18 
20 
20 
36 
36 
22 
20 
20 
amp. 
1.5 
1.5 
109.2 
95.2 
1 See table 65 for experiment on February 15, 1912. 
2 In all experiments it was customary to have the mouth on the mouthpiece 3 to 5 minutes before the start 
of a period. Frequently this was done 10 minutes before the first period. The pulse-rate at 8 h 25™ a.m. 
on Feb. 14 was 60; at 8 h 31 m a.m., 58; at 8 h 34 m a.m., 58. The food eaten by the subject in connection 
with this series of experiments (Feb. 14-16) was of the same nature as in the first series with carbohy- 
drate-rich diet (Jan. 24-26, 1912). 
3 Work was begun at 9 h 46 m a.m. Between 9 h 46 m a.m. and 9 h 59 m a.m. the subject rode at the average rate 
of 96 revolutions per minute. He was keen to work and had to be restrained. 
4 At the wrist. 
6 Between the two periods the subject rode at the average rate of 87 revolutions per minute, though at first 
he rode as high as 101 revolutions per minute. During the period the work was easily done, with no 
strain. He said before he started that it was a long time since he felt in such excellent riding mood. 
He felt that he could ride for hours. 
Work ceased at 10 h 53 m a.m. 
Table 67. — Results with subject M. A.M. (without food, following 8 days with carbohydrate- 
rich diet). 
Date and time. 
Duration. 
Carbon 
dioxide 
eliminated 
per minute. 
Oxygen 
absorbed 
per 
minute. 
Respira- 
tory 
quotient. 
Aver- 
age 
pulse- 
rate. 
Average 
respira- 
tion-rate. 
Cur- 
rent. 
Revolu- 
tions per 
minute. 
Feb. 16, 1912 
Lying: 
8 h 40"> a.m.' . 
9 02 a.m... 
9 25 a.m. . . 
Work: 
10 h 02 m a.m.* . 
10 45 a.m.». 
Lying: 
ll h 15"> a.m.<. 
11 40 a.m.'. 
12 03 p.m... 
12 32 pm... 
12 55 p.m... 
1 14 p.m... 
1 45 p.m... 
Work: 
2 h 25 m p.m.*. 
Lying: 
2M5 m p.m. 7 . 
3 06 p.m... 
mm. sec. 
16 33 
15 08 
15 28 
10 24 
14 08 
15 07 
14 53 
15 04 
14 48 
14 36 
15 34 
14 56 
10 07 
14 45 
14 28 
c.c. 
199 
191 
188 
2,061 
1,919 
205 
199 
197 
191 
192 
199 
198 
1,777 
236 
221 
c.c. 
220 
223 
222 
2,286 
2,036 
294 
259 
257 
261 
254 
253 
250 
2,206 
321 
280 
0.91 
.86 
.85 
.90 
.94 
.70 
.77 
.77 
.73 
.76 
.79 
.79 
.81 
.74 
.79 
60 
60 
60 
158 
162 
79 
79 
76 
71 
64 
66 
168 
97 
91 
18 
20 
20 
36 
24 
24 
22 
20 
20 
21 
20 
38 
24 
23 
1.5 
1.5 
1.5 
107.2 
97.2 
94.7 
1 The subject lay down at 8 h 10 m a.m. The pulse-rate at 8 h 25 m a.m. was 64; at 8 h 30 m a.m., 64; at 8 h 35 m 
a.m., 64. 
2 Work was begun at 9 h 50 m a.m. Between 9 h 50 m a.m. and 10 h 02 m a.m. the subject rode at the average rate 
of 111 revolutions oer minute. 
8 Between the two periods" the subject rode at the average rate of 89 revolutions per minute. At 10 h 20 m a.m. 
a sample of the alveolar air was taken and this caused a slowing of speed. A sample of the alveolar 
air was also taken at 10 h 42 m a.m. 
4 Work was finished at 11 a.m. A sample of the alveolar air was taken at ll h 05 m a.m. The subject lay 
down at ll h 06 m a.m. 
6 A sample of the alveolar air was taken at ll h 35 m a.m. 
« Work was started again at 2 b 05 m p.m. Between 2 h 05 m p.m. and 2 h 25 m p.m. the subject rode at the average 
rate of 115 revolutions per minute, the highest rate being 145 revolutions in the second 5 minutes and 
the lowest 76 revolutions in the last 5 minutes. 
7 Work was finished at 2 h 36 m p.m. The subject lay down at 2 h 40 ra p.m. 
