STATISTICS OF EXPERIMENTS 
43 
WORK EXPERIMENTS. 
These experiments were made under varying conditions of work, i. e. } 
light, moderate, severe, and very severe, one experiment (that of March 15, 
1912) being continued almost to the point of exhaustion. The currents 
through the magnetizing field for these experiments were respectively 0.9 
ampere for ergometer I and 0.5, 0.95, 1.1, 1.25, and 1.5 amperes for ergometer 
II. The periods in many instances were but 10 minutes in length, but often 
covered 15 minutes; they were usually two or three in number. The experi- 
ments were arranged in series so that a comparison could be made of the 
working metabolism under different conditions. In some cases the light work 
preceded the severe work, which was again succeeded by light work. In 
others, the initial experiments were with severe work. The influence of diet 
upon the metabolism during muscular work was also studied in a few experi- 
ments. (See pages 31 and 88.) In most cases, the resting metabolism was 
determined for each experimental day before the work experiments began. 
The statistical data of the experiments are given in tables 23 to 90 inclusive. 
Table 23.— Results with subject J. E. F. 
Date and time. 
Duration. 
Carbon 
dioxide 
eliminated 
per minute. 
a&! R to?r 
1 tory 
rJw^ quotient, 
minute. 1 ^ 
Aver- 
age 
pulse- 
rate. 
Average 
respira- 
tion-rate. 
Cur- 
rent. 
Revolu- 
tions per 
minute. 
Xot. 20, 1911 .» 
Lying, without food: 
lib 12^ a-m 
Work, with food:* 
l h 29 al p.m.' 
Lying: 
3>> 25"" p.m. 
tntn. sec. 
15 12 
12 02 
10 17 
13 35 
c.e. 
225 
1.225 
1,345 
307 
CM. 
an 
1.372 
1.320 
284 
0.81 
.89 
1.02 
1.08 
•• 
•• 
amp. 
0.9 
0.9 
«56 
«58 
1 The experiment on this day was a trial experiment with this subject while working on the ergometer. It 
should be noted that only the period lying before work was without food. 
J The subject had eaten a comparatively light meal since the conclusion of the first lying period. 
* It is not recorded how much work was done before or in the interval after this period. Sweat appeared 
on the brow at l h 34™ p.m. 
* Approximate. Only one record of speed was taken in each period. 
Table 24 — Results with subject J. E. F. (without food). 
Date and time. 
Duration. 
Carbon j Oxygen p ___:___ 
dioxide absorbed j Ke fP* ra - 
eliminated per j tient- 
per minute. | minute. ■*-""="»• 
Aver- 
age 
pulse- 
rate- 
Average 
respira- 
tion-rate. 
Cur- 
rent. 
Revolu- 
tions per 
minute. 
Xot. 22, 1911. 
Lying: 
9>> 31= a.m.i 
10 16 a-m. 
min. sec. 
10 17 
13 43 
13 44 
e.c. 
210 
215 
213 
C.C. 
236 
237 
238 
0.89 
.91 
.90 
59 
59 
59 
9 
10 
amp. 
•- 
" 
213 
237 0.90 
59 | 10 
Work:* 
lC" 40" a-m. 
Lying: 
22 00 
14 10 205 
255 0.80 
64 1 
0.9 
*68 
l The subject had spent the night in the bed calorimeter after a light supper. Before commencing this ex- 
periment he said he felt rather hungrv and was troubled somewhat with cramps. He lay down at 
8>> 55™ a-m. The pulse-rate at 9>> 10=" a.m. was 62 ; at 9>> 20" a.m., 58; at 9"» 25 m a.m., 60. 
J Work was begun at 10>> 40°* a.m. The pulse-rate at 10>> 44™ a.m. was 104; at lO* 51 m a.m., 120; at lO* 55"> 
a.m., 122; at 10*" 59 31 a.m., 126. Subject began breathing in the circuit of the respiration apparatus 
at 11> 00™ 15s a.m., and the period was started but within 2 minutes the pulse-rate rose suddenly to 
184. The subject collapsed, and could not retain the mouthpiece in his mouth. The pulse-rate at 
11<> 08" a-m. was 72; at ll h 20 tn a-m., 72. 
3 Approximate. Only one record of the speed was taken, and that at 10* 45 m a.m. 
