54 
MUSCULAR WORK 
Table 52. — 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. 10. 1912.1 
Lying: 
Work: 
9 h 47°> a.m.s 
10 18 a.m.' 
Lying: 
10h 41" a.m 
11 04 a.m 
11 27 a.m 
min. sec. 
14 53 
14 49 
10 06 
10 07 
15 05 
14 25 
13 41 
14 37 
c.c. 
206 
211 
1,786 
1,872 
247 
225 
228 
219 
c.c. 
258 
259 
2,092 
2,035 
333 
308 
316 
310 
0.80 
.81 
.86 
.92 
.75 
.73 
.73 
.71 
64 
66 
«168 
«156 
89 
89 
86 
84 
20 
20 
28 
30 
28 
24 
22 
23 
amp. 
0.9 
0.9 
96.1 
95.3 
1 See table 49 for experiment on January 16, 1912. 
2 The subject lay down at 8 h 05" a.m. The pulse-rate at 8 h 14 m a.m. was 68; at 8 h 20™ a.m., 8 h 23 m a.m., and 
8>> 25" a.m., 64. 
3 Work was begun at 9 h 16 m a.m. The average speed from 9 h 16 m a.m. to 9 h 47 m a.m. was 118 revolutions 
per minute, though the subject rode as rapidly as 136 revolutions per minute. The speed at 9 h 41™ a.m. 
was about 120 revolutions per minute, when he slowed down, by direction, to about 83 revolutions per 
minute. The subject said he felt in excellent condition while at work, and he looked as if he were. 
* One record, at the wrist. 
6 Between the two periods the subject rode at the average speed of 86 revolutions per minute, though much 
of the time he rode as rapidly as 95 revolutions per minute. At the beginning of the second period 
through accident the rotary blower was not started and therefore for about one-half minute the subject 
rebreathed while hard at work. He showed all the usual symptoms of impending collapse. As soon 
as the rotary blower was started and a liberal allowance of oxygen was given, the symptoms disappeared 
very rapidly. After that he continued the work with ease. 
Table 53. — Results with subject M. A. M. (without food, following 1 day with carbohydrate- 
poor 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. 
Jan. 17, 1912. 
Lying: 
8 h 30 m a.m.i 
Work: 
9 h 33 m a.m.* 
10 08 a.m. 3 
Lying: 
11 04 a.m 
11 28 a.m 
11 49 a.m 
min. sec. 
14 44 
15 09 
10 34 
14 12 
16 19 
14 51 
14 45 
15 00 
c.c. 
196 
187 
1,893 
1,756 
233 
205 
216 
220 
c.c. 
253 
249 
2,055 
2,143 
335 
296 
283 
286 
0.78 
.76 
.92 
.82 
.70 
.70 
.76 
.77 
61 
60 
161 
155 
89 
84 
83 
80 
20 
20 
36 
36 
28 
24 
24 
26 
amp. 
0.9 
0.9 
101.4 
91.2 
1 The subject said the muscles of his body were stiff and he felt as if he needed a rubdown. He lay absolutely 
still during the period. 
2 Work was begun at 9 h 18 m a.m. Between 9 h 18 m a.m. and 9 b 33 m a.m. the subject rode at the average rate 
of about 104 revolutions per minute, though for the first 5 minutes he rode at the average rate of 134 
revolutions per minute. 
S Between the two periods the subject rode at the average speed of 87 revolutions per minute. _ During the 
period the work was carried out with comparative ease, though the subject looked much fatigued at the 
end. He did not walk easily. 
4 Work ceased at 10 h 22 ra a.m. The subject was then rubbed vigorously with liniment and towels and lay 
down at 10 h 28 m a.m. He lay very quietly. He made the statement that he was very tired and hungry 
and felt just as if he had ridden 100 miles. 
