STATISTICS OF EXPERIMENTS 
65 
Table 76. — 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. 
Mar. 12, 1912. 
Light work: 
8>>48™a.m.» 
9 12 a.m.» 
9 35 a.m.» 
Severe work: 
lO* 17™ a.m.* 
10 38 a.m.« 
10 58 a.m.' 
min. see. 
12 44 
12 41 
12 40 
11 26 
11 33 
11 28 
C.C. 
675 
658 
684 
1,310 
1,319 
1,369 
e.e. 
797 
807 
814 
1,564 
1,520 
1,534 
0.85 
.82 
.84 
.84 
.87 
.89 
90 
88 
90 
*112 
112 
116 
20 
20 
22 
28 
32 
28 
amp. 
0.5 
0.5 
0.5 
1.5 
1.5 
1.5 
70.7 
71.5 
72.4 
71.8 
70.5 
709 
l The subject started riding at 8* 24 m a.m., timed by the metronome set at 70. 
* In the interval before this period the subject rode at the average rate of 74 revolutions per minute. 
» In the interval before this period the average speed was 69 revolutions per minute. At the end of the period 
the subject said he felt in excellent condition, but that his hands, wrists and arms were sore from strain. 
* The current was increased to 1.5 amperes at 9 11 49 m a.m. Between 9* 49™ a.m. and lfr 17™ a.m. the average 
speed was 70 revolutions per minute. The subject began to perspire during this period. 
5 Pulse-rate at the end of the period. 
* In interval before period the av. speed was 71 revs, per min. The subject perspired freely during the period. 
1 In the interval before this period the subject rode at the average rate of 54 (?) revolutions per minute. Dur- 
ing the period the perspiration was profuse. 
Table 77. — 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, 191 2 A 
No load, with motor: 
8 1 >47™ a.m.» 
9 10 a-m.» 
Work: 
l* 30™ a.nx.s 
10 54 a.m.» 
11 19 a.m.» 
im'n. see. 
14 35 
14 54 
15 05 
10 29 
10 46 
10 39 
e.e. 
642 
618 
573 
2,065 
2,051 
2,218 
e.e. 
789 
717 
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 
amp. 
1.5 
1.5 
1.5 
101.8 
101.7 
100.6 
99.2 
99.1 
105.5 
1 See table 78 for experiment on March 13, 1912. 
* The machine was motor-driven. The subject.began riding at 8* 18™ a.m., and to the beginning of the period 
rode at the average rate of 99 revolutions per minute. Average pulse during preliminary period, 96. 
* In interval before period, av. speed 95 revs, per min. Subject lifted his body off seat 3 times. (See note 6.) 
* In the interval before this period the average speed was 106 revolutions 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 h 30" 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. 
* In the interval before this period the average speed was 78 revolutions per minute. 
f In the interval before this period the average speed was 89 revolutions 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 return the seat to the original height found comfortable for M. A. M. 
Table 78. — 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. 
Mar. 13, 1912. 
Light work: 
8* 46™ a.m.i 
9 10 a-m.* 
9 33 a.m.» 
Severe work: 
10 h 18™ a-m.« 
10 46 a.m.« 
11 14 a.m.« 
min. sec. 
12 40 
12 41 
12 48 
11 30 
10 16 
11 27 
e.e. 
768 
785 
748 
1,375 
1,342 
1,421 
e.e. 
837 
895 
848 
1.513 
1,631 
1,556 
0.92 
.88 
.88 
.91 
.83 
.91 
92 
96 
94 
112 
110 
116 
20 
24 
24 
28 
28 
28 
amp. 
0.5 
0.5 
0.5 
1.5 
1.5 
1.5 
71.5 
75.5 
72.1 
70.2 
70.4 
70.3 
l Work was begun at 8* If*™ a.m. Between 8* 16™ a.m. and 8* 46™ a.m., av. speed 72 revs, per min. 
1 In the interval before this period the average speed was 73 revolutions per minute. The subject found it 
difficult to keep pace with the metronome; it was too slow for him. 
J In the interval before this period the average speed was 64 revolutions per minute. 
4 Current was increased to 1.5 amperes at 9 h 47™ a.m. Between ^ 47™ a.m. and 10* 18™ a.m. av. speed 69 revs. 
per min. Work was done readily except that it was difficult to keep pace with the metronome. 
5 The average speed in the interval before the period was 60 revolutions per minute. 
6 In tha interval before this period the average speed was 65 revolutions per minute. 
