52 
MUSCULAR WORK 
Table 46. — 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. 
Jan. 5, 1912. 
Lying: 
8" 29™ a.m.i 
Work: 
8 h 51™ a.m 
Lying: 
9 h 56™ a.m.' 
10 45 a.m 
11 09 a.m. 3 
11 33 a.m.« 
min. sec. 
15 06 
60 .. 
14 33 
14 41 
14 40 
14 47 
c.c. 
213 
308 
209 
214 
209 
c.c. 
233 
407 
311 
306 
293 
0.92 
.76 
.68 
.70 
.72 
62 
100 
88 
85 
83 
20 
29 
23 
22 
24 
amp. 
0.9 
112.4 
1 The subject lay down at 8 a.m. The pulse-rate at 8 h ll m a.m. was 62; at 8 h 15™ a.m., 62; at 8 h 19 m a.m., 
62; at 8 h 22™ a.m., 60. 
* The subject rode rapidly for an hour after the first lying period, not breathing in the circuit of the respira- 
tion apparatus. He rode more rapidly at times, once at the rate of 153 revolutions per minute. Work 
was finished at 9 h 51 m a.m. There was very great perspiration after the work. Subject was rubbed 
down before he lay upon the couch. _ He lay very quietly, his respiration being shallow and rapid. 
3 The apparatus was carefully tested for tightness before the period was started. There was no evidence 
that the mouth was not kept closed. 
4 The apparatus was again tested carefully. The subject asserted that in both previous periods his lips and 
his nose (held by noseclip) were absolutely tight. He complained that he was extremely hungry. 
Table 47. — 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. 
Jan. 8, 1912.1 
Lying: 
8 h 34m a . m .2 
Work: 
9 h 35™ a.m.' 
10 22 a.m.< 
Lying: 
10 h 44™ a.m.6 
11 10 a.m 
11 31 a.m 
min. sec. 
15 26 
14 42 
10 04 
10 11 
14 51 
14 43 
15 21 
c.c. 
205 
204 
1,743 
1,902 
241 
217 
220 
c.c. 
228 
234 
1,959 
1,989 
288 
263 
263 
0.90 
.87 
.89 
.96 
.84 
.83 
.84 
59 
58 
162 
180 
89 
85 
83 
20 
20 
32 
22 
20 
20 
amp. 
0.9 
0.9 
85.8 
95.0 
1 A new and larger wooden wheel had been put on the motor and a smaller wheel or rim of the blower was 
used. The ventilation was increased from about 60 liters per minute to about 82 liters per minute. 
2 The subject had a slight cold but otherwise felt and looked to be in good condition. 
3 The subject began work at 9 h 24 m a.m. and to the beginning of the period he rode at the average rate of 92 
revolutions per minute. 
i The subject had no difficulty in breathing. The machine was not running at just the second the subject 
was brought into the circuit. It was started immediately. The subject rode at the average rate of 
100 revolutions per minute between the two periods. 
6 Work was finished at 10 b 33 m a.m. The subject was then rubbed down and lay on the couch at 10 h 37 m a.m. 
Table 48. — 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. 
Jan. 9, 1912. 
Lying: 
8 h 30 m a.m.i 
Work: 
9 h 40™ a.m. 2 
10 20 a.m.» 
Lying: 
10 h 47™ a.m.* 
11 13 a.m 
11 38 a.m 
min. sec. 
14 41 
14 42 
9 02 
10 09 
14 38 
14 42 
14 58 
c.c. 
215 
207 
1,528 
1,727 
229 
207 
213 
c.c. 
237 
246 
1,877 
1,976 
329 
299 
285 
0.91 
.85 
.82 
.87 
.70 
.70 
.75 
60 
60 
156 
162 
87 
83 
83 
18 
20 
28 
26 
24 
24 
24 
amp. 
0.9 
0.9 
85.8 
89.1 
1 The subject had great difficulty in walking over to the laboratory and fell twice because of the icy street. 
He said he was not much inclined to work. He lay down at 8 h 10 m a.m. The pulse-rate at 8 h 19 m a.m. 
was 64; at S h 23™ a.m., 60; at 8 h 27™ a.m., 60. 
2 Work was begun at 9 h 17 m a.m. Between 9 h 17™ a.m. and 9 h 40 m a.m. the average speed was 109 revolu- 
tions per minute. From 9 h 25 m a.m. to 9 h 32 m a.m. the subject was riding at the rate of about 130 
revolutions per minute. He was directed to ride more slowly and reduced the speed to about 90 revo- 
lutions per minute. During the period itself the subject was not looking well and the period was there- 
fore ended after 9 minutes. A test made during the period showed that carbon dioxide was passing 
the soda-lime. The subject said he did not feel as well as on Jan. 8. but could have completed 10 minutes. 
3 The average speed between the two periods was 97 revolutions per minute. 
4 Work was finished at 10 h 32 m a.m. The subject's respiration was shallow during this period. 
