46 
MUSCULAR WORK 
Table 31. — Results with subject E. P. C. (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. 
Nov. 23, 1911 .1 
Lying: 
8M1-B am.* 
9 07 a.m 
9 36 a.m 
Train, sec. 
14 43 
14 59 
10 18 
c.c. 
171 
171 
165 
c.c. 
199 
220 
215 
0.86 
.78 
.77 
55 
47 
48 
11 
11 
11 
amp. 
169 
211 
0.80 
50 
11 
Work:' 
lO^Sl-a-m 
10 51 a.m.6 
Lying: 
11>> 18"> a.m.* 
11 48 a.m 
9 10 
10 50 
12 36 
11 41 
1,097 
1,095 
190 
159 
1,167 
1,368 
249 
225 
0.94 
.80 
.76 
.71 
107 
118 
58 
53 
19 
19 
0.9 
0.9 
<54 
4 58 
1 See table 30 for experiment on March 5, 1912. 
2 The pulse-rate at 8 h 39 m a.m. was 52. The subject was troubled by soreness about the nose due to the use 
of the noseclip, and by the strong light in his eyes. He was also annoyed by the dryness of the air. 
It was found that the moistener had become dry. 
3 Work was begun at 10 h 16 m a.m. The average speed to the beginning of the period at 10 h 31 m a.m. was about 
55 per minute. The pulse-rate at 10 h 16 m a.m. was 70; at 10 h 21 m a.m., 88; at 10 h 25 m a.m., 96; at 
10 h 28" a.m., 95; at 10 h 30°> a.m., 97. 
* Approximate. 
6 The rate of the subject's riding between periods was not recorded. The work was continuous. 
6 Work was finished at ll h 03 m a.m. The blood pressure as observed between the second and third periods 
lying before work was maximum 110, minimum 80; soon after work was finished, maximum 115, 
minimum 80. 
Table 32. — Results with subject K. H. A. (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. 
Mar. 7, 1912. 
Severe work: 
8 h 48'°a.m.i 
9 07 a.m. 2 
Light work: 
9 h 43 m a.m.' 
10 03 a.m.* 
min. sec. 
10 20 
10 15 
10 53 
11 52 
c.c. 
1,767 
1,824 
863 
902 
c.c. 
2,060 
1,949 
1,070 
1,082 
0.86 
.94 
.81 
.84 
162 
174 
132 
136 
26 
32 
22 
amp. 
1.5 
1.5 
0.5 
0.5 
79.0 
79.7 
78.7 
79.4 
1 Work was begun at 8 h 18 m a.m. Between 8 h 18 m a.m. and 8 h 48 m a.m. the subject rode at the average rate 
of 79 revolutions per minute. The metronome set at 82 to 84 was used to regulate the speed. 
2 In the interval before this period the average speed was 86 per minute. 
3 The current was lowered to 0.5 ampere at 9 h 19 m a.m. Between 9 h 19 m a.m. and 9 h 43 m a.m. the average 
speed was 78 per minute. During the period the work was done with ease, and the subject restrained 
himself in order to keep to the rate set for riding. 
4 In the interval before this period, the average speed was 83 per minute. 
Table 33. — Results with subject K. H. A. (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. 
Apr. 3, 1912. 
Light work: 
8 b 56 m a.m.> 
9 15 a.m. 2 
Severe work: 
10 h 04"> a.m.' 
10 25 a.m.< 
min. sec. 
10 20 
10 20 
10 14 
10 08 
c.c. 
921 
895 
1,834 
1,825 
c.c. 
1,052 
1,061 
2,015 
2,147 
0.88 
.84 
.91 
.85 
120 
124 
168 
170 
20 
18 
24 
24 
amp. 
0.5 
0.5 
1.5 
1.5 
78.7 
78.7 
78.5 
78.7 
1 Work was begun at 8 h 29 m a.m. Between 8 h 29 m a.m. and 8 h 56 m a.m. the average speed was 79 revolu- 
tions per minute. 
2 In the interval before this period the average speed was 84 per minute. 
3 At 9 h 27 m a.m. the current was increased to 1.5 amperes. In the interval between the second and third 
periods the average speed was 77 per minute. The counter was not recorded at 9 h 27™ a.m. Perspira- 
tion began at 9 h 35™ a.m. The subject's breathing was slow and deep. Perspiration was] somewhat 
profuse. , 
4 In the interval before this period the average speed was 79 per minute. The subject s breathing was slow 
and labored during the period, and caused distension of the rubber cap of the tension-equalizer to its 
full capacity. 
