58 
MUSCULAR WORK 
Table 61. — 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. 2, 1912. 
Lying: 
8 h 40 m a.m. 1 
9 03 a.m 
Work: 
10t> 03"> a.m.* 
10 48 a.m.* 
Lying: 
ll h 25°> a.m.« 
12 19 p.m 
12 48 p.m.' 
1 26 p.m 
1 57 p.m 
2 32 p.m.s 
3 07 p.m 
3 35 p.m.» 
min. sec. 
14 52 
14 53 
15 31 
10 12 
14 17 
14 46 
15 01 
14 45 
15 15 
15 48 
15 33 
15 56 
15 27 
c.c. 
214 
202 
195 
2,090 
2,129 
220 
217 
216 
224 
217 
214 
226 
223 
c.c. 
243 
247 
247 
2,433 
2,283 
284 
277 
282 
277 
278 
278 
282 
282 
0.88 
.81 
.79 
.86 
.93 
.77 
.79 
.77 
.81 
.78 
.77 
.80 
.79 
64 
64 
65 
»166 
»169 
93 
84 
83 
81 
81 
76 
79 
75 
20 
18 
18 
36 
40 
24 
24 
20 
24 
20 
20 
22 
amp. 
1.5 
1.5 
104.1 
98.5 
1 The subject lay down at 8 h Oom.a.m. The pulse-rate at 8 h 27™ a.m. was 68; at 8 h 32-» a.m., 66. 
2 Work was begun at 9 h 49 m a.m. Between 9 h 49 m a.m. and 10 h 03 m a.m. the subject rode at the average rate 
of 109.5 revolutions per minute. A portion of the time he rode as rapidly as 126 revolutions per minute. 
3 One record at the wrist. 
* Between the two periods the subject rode at the average rate of 93 revolutions per minute. Part of the 
time he rode as rapidly as 113 revolutions per minute. During the period the handle-bars were loos- 
ened. The subject became restless because of the swinging of the loose bars. He also had trouble 
with the pedals. 
5 At the wrist. 
6 Work was finished at ll h 03 m a.m. 
7 The subject's respiration was very shallow and irregular. 
8 The subject rose from the couch at 2 h 24 m p.m. and walked about slowly, stretched himself, and then lay 
down. The total time used for these operations was one and one-half minutes. The pulse rate at 2 h 
30 m p.m. was 78. 
» The subject was tired and hungry at the end of the experiment. He was also suffering from cramp of the 
lips, owing to the fact that he had held his mouth to the mouthpiece so frequently. 
Table 62. — 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. 6, 1912? 
Lying : 
mm. 
sec. 
c.c. 
c.c. 
amp. 
8 h 47 m a.m. 2 
15 
32 
208 
243 
0.86 
59 
20 
9 15 a.m 
14 
43 
211 
233 
.91 
58 
20 
.9 45 a.m 
15 
40 
221 
225 
.98 
59 
18 
10 15 a.m 
14 
29 
213 
234 
.91 
59 
20 
10 42 a.m 
14 
54 
208 
231 
.90 
60 
20 
11 06 a.m 
15 
35 
207 
231 
.90 
58 
18 
11 34 a.m 
16 
11 
202 
231 
.87 
59 
18 
Feb. 7, 1912? 
Lying: 
8 h 35™ a.m 
15 
11 
206 
236 
.88 
61 
20 
8 58 a.m 
14 
50 
190 
232 
.82 
59 
20 
Work: 
9 h 59 m a.m.* 
14 
53 
189 
231 
.82 
58 
20 
10 
09 
2,198 
2,488 
.88 
168 
1.5 
108.6 
10 41 a.m.* 
Lying: 
llh 12m a . m .6 
14 
12 
1,853 
1,976 
.94 
164 
38 
1.5 
90.0 
14 
38 
232 
278 
.84 
92 
24 
11 35 a.m 
14 
16 
216 
262 
.82 
83 
24 
14 
01 
217 
268 
.81 
83 
24 
1 The experiment of Feb. 6 was made following several days with ordinary diet, and was a test of the flexible 
connection for the mouthpiece. This connection was not used in the first four periods; it was used in 
the last three periods. 
2 Pulse at 8 h 23 m a.m. was 64; at 8 h 27 m a.m., 64. 
3 After 1 day with carbohydrate-poor diet. 
i Work was begun at 9 h 44 m a.m. Between 9 h 44 m a.m. and 9 h 59 m a.m. the subject rode at the average rate 
of 105 revolutions per minute. During the first 5 minutes he rode at the rate of 121 revolutions per 
minute. He did not feel that he was in as good condition as during the preceding week, though he 
was very fit. 
6 Between the two periods the subject rode at the average rate of 89 per minute. 
e Work was finished at 10 h 57 m a.m. Subject lay down at ll h 03 m a.m. 
