STATISTICS OF EXPERIMENTS 
49 
Table 39. — 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. 
Dec. 20, 1911 .i 
Lying: 
Work : * 
9>> 50" a.m.» 
10 10 a.m.« 
10 28 a.m- 
Lying: 
10"> 53" a.m.* 
11 14 a.m 
11 35 a.m 
min. sec. 
14 18 
14 23 
14 28 
10 28 
10 34 
10 40 
14 14 
14 15 
15 22 
c.c. 
203 
194 
186 
1,117 
1,050 
1,097 
203 
192 
200 
c.c. 
226 
227 
225 
1,316 
1,276 
1,344 
258 
247 
252 
0.90 
.86 
.83 
.85 
.82 
.82 
.79 
.78 
.80 
65 
64 
60 
111 
113 
115 
68 
62 
63 
22 
20 
16 
23 
24 
25 
20 
20 
21 
amp. 
0.9 
0.9 
0.9 
*60 
«5S 
«59 
1 See table 36 for experiment on December 19, 1911. 
S The thermal junction rectal thermometer was used during the work periods and during the lying periods 
following. The body-temperature rose about 1° C. and after work fell to about the original level. (See 
Fig. 10, p. 158.) 
* Work was begun at 9 h 30" a.m. The metronome was used, set at 60. The pulse-rate during the prelimi- 
nary period was at 9 h 35" a.m., 100; at 9 h 42" a.m. and 9 h 46f» a.m., 104; at 9 h 48" a.m., 102. The 
speed of the rotary blower was increased during work. Perspiration appeared on the subject's brow 
at 9 h 57" a.m. 
* Approximate. The metronome was used to regulate the speed. 
S The metronome was set at 58. At 10 11 18" a.m. there was sweat on the subject's lips as well as on his brow. 
He found the work easy and felt in excellent condition. 
« Work was finished at 10 11 40" a.m. The subject then readjusted the rectal thermometer and immediately 
lay down. 
Table 40. — 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. 
Dec. 21, 1911. 
Lying: 1 
8>» 22" a.m.* 
8 41 am 
9 01 a.m.» 
Work: 
10>>03" a.m.* 
10 21 a.m.« 
Lying: 
10>>43" a.m.* 
11 02 a.m 
11 23 a.m 
11 44 a.m 
mtn. sec. 
14 16 
14 17 
14 27 
10 23 
10 17 
14 22 
14 32 
14 30 
14 32 
c.c. 
202 
199 
196 
1,055 
971 
217 
203 
196 
192 
c.c. 
230 
231 
231 
1,245 
1,256 
259 
261 
247 
246 
OlM 
.86 
.85 
.85 
.77 
.84 
.78 
.79 
.78 
61 
60 
60 
125 
132 
75 
70 
67 
65 
18 
18 
19 
25 
28 
23 
23 
20 
24 
amp. 
0.9 
0.9 
«60 
•60 
1 The rectal thermometer was used on this day but was not inserted during work. The records show that a 
rise in the body temperature of about 0.9° C. occurred during work. During the second series of lying 
periods there was a steady fall totaling about 1.6° C. (See Fig. 10, p. 158.) 
* The subject lay down at 7 h 55" a.m. The pulse-rate at 7* 57" a.m. was 66; at & 02" a.m., 64; at 8 h 07" 
a.m., 58. From 8>» 10^ a.m. to 8 h 17" a.m. the average pulse-rate was 60. 
i In the third period the position of the mouthpiece was twice altered for the subject because it was not as 
comfortable for him as usual. 
* The subject rode at the average rate of 107 revolutions per minute from 9* 22" a.m. to 9* 1 47" a.m., when the 
speed was lowered to 60 revolutions per minute. The pulse-rate could not be observed during the 
rapid riding because the subject could not wear the stethoscope harness. It took him till 9 h 38" a.m. 
to get his second wind. During the preliminary period following 9 h 47" a.m., the pulse-rate was 132, 
128, 124, 128. During the rapid riding the speed went as high as 135 revolutions per minute. 
6 Approximate. The metronome was used to regulate the speed. 
* The subject complained of saddle soreness. After the rate was lowered to 60 revolutions per minute, the 
metronome was used to regulate the speed. He said the ergometer was different from the ordinary 
form of bicycle. While at work he was annoyed at having to keep time with the metronome. The 
crank of the bicycle was working loose, and that also annoyed him and interfered with the smoothness 
of his work. 
7 The subject stopped work at 10 b 35" a.m. His respiration was now shallow, though regular. He was 
tired, and there was tendency, therefore, to loosen the mouth on the mouthpiece. 
