STATISTICS OF EXPERIMENTS 
Table 68. — Results with subject M. A.M. (without food). 
61 
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. 23, 1912. 
Lying: 
8*42<» a.m.» 
9 28 a.m 
Moderate work: 
10 h 09 m a.m.* 
10 30 a.m.« 
Severe work: 
llh 17m a . m .« 
11 41 a.m.» 
min. tec. 
15 37 
15 19 
15 21 
10 20 
10 10 
11 09 
10 17 
c.c. 
209 
200 
1,720 
1,592 
1.620 
2,227 
c.c. 
229 
234 
243 
1,834 
1,595 
1,955 
3,265 
6.90 
.83 
.94 
1.00 
.83 
.98 
60 
56 
56 
'150 
*153 
160 
166 
22 
22 
20 
32 
36 
36 
38 
amp. 
0.95 
0.95 
1.5 
1.5 
108.4 
88.1 
88.1 
101.6 
l The subject lay down at & 1 05 m a.m. The pulse-rate at &> 30™ a.m. was 58; at 8>> 40" a.m., 56. 
J Work was begun at 9 h 50™ a.m. Between 9 h 50 m a.m. and lC 1 09 m a.m. the subject rode at the average rate- 
of 114 revolutions per minute, the rate for the first 10 minutes being 129 per minute. 
* One record, at wrist. . 
* Carbon dioxide accumulated in the circuit because of the condition of the soda-lime. By mistake soda-lime 
was being used which had already absorbed 20 grams of carbon dioxide. The subject showed no signs 
of collapse till about the end of" the seventh minute, when he began to look tired. He said he felt 
somewhat exhausted for a short time but that the feeling did not last long. The average speed in the 
interval before this period was 103 revolutions per minute. 
* Average of records taken at the wrist. 
« Between the end of the preceding period at 10 h 40 m a.m. and ll h 02™ a.m., the subject rode at the average 
rate of about 101 revolutions per minute. At ll h 02 m a.m. the current was increased to 1.5 amperes. 
From that time till the beginning of the next period at ll h 17™ a-m., the average speed was SO per 
minute. During the period the subject found that there was now a good deal of labor involved. It 
was much harder than usual. No carbon dioxide was detected in the circuit. 
1 Between the two periods with a current of 1.5 amperes the subject rode at the average rate of 73 revolu- 
tions per minute. During this last period the work was done with great difficulty. He was bathed 
in perspiration and looked strained. He was unsteady on his feet when he came off the machine. He 
said he did not remember when he had done such hard work. 
Table 69. — Results with subject M. A. M. (without food). 
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. 26, 1912. 
Lying: 
8Ml°>a.m.i 
9 05 a.m 
9 30 a.m 
Moderate work: 
10*> 15™ a.m.* 
10 34 a.m.' 
10 52 a.m.« 
Severe work: 
llh 20™ a.m.* 
11 48 a.m.« 
min. sec. 
14 45 
14 56 
14 58 
10 10 
10 38 
11 12 
10 44 
11 14 
c.c. 
203 
195 
200 
1,558 
1,270 
1,327 
1,803 
1,762 
c.c. 
229 
245 
243 
1,485 
1,589 
1,535 
1,917 
1.969 
0.89 
.80 
.83 
1.05 
.80 
.87 
.94 
.90 
62 
60 
60 
154 
142 
140 
140 
146 
20 
20 
20 
36 
32 
32 
32 
amp. 
0.95 
0.95 
0.95 
1.5 
1.5 
93.8 
92.5 
87.1 
91.3 
88.2 
i The subject lay down at 8 11 05 m a.m. The pulse-rate at 8>* 30™ a.m. was 62. 
* Work was begun at 9 h 55™ a.m. Between 9* 55 m a.m. and 10* 15™ a.m. the average rate was 91 revolu- 
tions per minute. 
1 In the interval before this period the subject rode at the average rate of 94 revolutions per minute. During 
the period work was done much more easily than during the preceding period. It did not seem labored. 
4 In the interval before this period the average speed was 94 revolutions per minute. 
5 At ll h 04™ a.m. the current was increased to 1.5 amperes. The subject kept at work at a slow pace, the 
average speed to the beginning of the period being 76 revolutions per minute. He did not notice the 
transfer from 0.95 ampere to 1.5 amperes. He began to labor when his attention was called to the 
change, but afterwards admitted it was not so very hard. During the period work waa easily and 
steadily done, though perspiration was more marked. 
• Between the last two periods the average speed waa 70 revolutions per minute. During the last period 
the work was done with comparative ease, though the subject's breathing was perhaps a little labored. 
