42 
MUSCULAR WORK 
Table 21. — Results with subject M. A. M. 
{without food). 
(Ergometer II.) 
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. 8, 1912. 
No load, with motor: 
8>> 47™ a.m.i 
9 39 a.m.' 
Work: 
tnin. sec. 
14 35 
14 54 
15 05 
10 29 
10 46 
10 39 
c.c. 
642 
618 
573 
2,065 
2,051 
2,218 
c.c. 
789 
719 
724 
2,339 
2,282 
2,365 
0.82 
.86 
.79 
.88 
.90 
.94 
96 
95 
95 
155 
153 
159 
18 
20 
18 
32 
34 
32 
amps. 
1.5 
1.5 
1.5 
101.8 
101.7 
100.6 
99.2 
99.1 
105.5 
1 The machine was motor-driven. The subject began riding at 8 b 18 m a.m., and to the beginning of the period 
rode at the average rate of 99 revolutions per minute. The average pulse-rate during this preliminary 
period was 96. 
2 In the interval before this period the average speed was 95 per minute. The subject lifted his body off 
the seat 3 times. (See note 6.) 
3 In the interval before this period the average speed was 106 per minute. During the period the pin holding 
the handle bars was broken and the handle bars became loose. This seemed to cause the subject 
considerable trouble and annoyance. 
* At 10 a.m. work was begun with the current at 1.5 amperes. Between 10 a.m. and 10 b 30 m a.m. the average 
rate was 93 revolutions per minute. With the change the subject found the work extremely difficult. 
He could hardly believe he was working against the usual amount of resistance. 
6 In the interval before this period the average speed was 78 per minute. 
6 In the interval before this period the average speed was 89 per minute. The subject said the ergometer was 
not at all comfortable; the seat was too high. Another subject using the apparatus had failed to re- 
turn the seat to the original height found comfortable for M. A. M. 
Table 22. — Results with subject M. A. M. (without food). (Ergometer II.) 
Date and time. 
Duration. 
Carbon 
dioxide 
eliminated 
per minute. 
Oxygen 
absorbed 
per minute. 
Respira- 
tory 
quotient. 
Average 
pulse- 
rate. 
Average 
respira- 
tion-rate. 
Revolu- 
tions per 
minute. 
Mar. 11, 1912. 
Lying: 
gh 44m a.m.i 
9 06 a.m 
Sitting: * 
gh 45m a.m.' 
10 23 a.m 
No load with motor: 
10 h 55™ a.m. 4 
11 14 a.m.' 
Work, current, 1.5 am- 
peres: 
12 05 p.m. 8 
min. sec. 
14 46 
16 14 
13 26 
10 25 
10 04 
11 45 
10 23 
10 51 
c.c. 
218 
212 
306 
258 
703 
634 
2,066 
2,057 
c.c. 
245 
248 
395 
376 
742 
744 
2,299 
2,220 
0.89 
.85 
.78 
.69 
.95 
.85 
.90 
.93 
60 
60 
84 
81 
'156 
'150 
20 
21 
20 
20 
103.7 
101.0 
102.2 
100.7 
1 The subject lay down at 8 h 05™ a.m. The pulse-rate at 8 h 25™ a.m. was 62; at 8 h 28™ a.m., 60; at 8 h 40™ a.m., 
60. 
2 The subject sat on the ordinary seat with his feet on unsupported pedals, t. e., with the disk perfectly free. 
3 From 9 h 27™ a.m. to 9 h 39™ a.m. the subject sat with feet resting on the forks. He then lowered his feet 
to the pedals. ■ He found that sitting still in this position was a constant strain. 
4 The subject began riding at 10 h 37™ a.m., the machine being driven by a motor. The belt slipped at 10 h 52 m 
a.m. The pulse-rate 15 seconds after the stopping of work due to the slipping of the belt was only 84. 
6 Between the two "no-load" periods the average speed was 72 (?) per minute. Soon after the start of the 
period (75 seconds) the belt slipped off. The machine was stopped completely, the belt was replaced, 
and the machine restarted. 
6 Work was begun at ll h 32™ a.m. with the current at 1.5 amperes. Between ll h 32™ a.m. and ll h 46™ a.m. 
the average speed was 97 revolutions per minute. 
"I Pulse-rate at the end of the period. 
8 In the interval before this period the subject rode at the average rate of 96 revolutions per minute. 
