PHYSIOLOGY: BENEDICT AND SMITH 
103 
Comparison of the Heat Production of Athletes and Normal Non-Athletic Men. 
HEAT PRODUCTION PER 24 HOURS 
(computed) 
Group and subject 
Nude 
weight 
Height 
Total 
Per 
kilogram 
Per squai 
mecer 
kilos 
cms. 
cats. 
cals. 
cals. 
Group I 
Athlete 
W. S 
88.5 
165 
2017 
22.8 
823 
Non-athlete 
0. F. M 
85 . 8 
171 
1827 
21 .3 
761 
Group II 
Athletes 
J. H. R 
82.2 
187 
1978 
24.1 
849 
D. H. W 
82.1 
186 
2034 
24.8 
873 
M. H. K 
79.0 
188 
1944 
24.6 
856 
184 
2126 
27.0 
940 
Non-athletes 
F. G. B 
83.1 
183 
1802 
21.7 
770 
W. A. M 
78.0 
183 
1816 
23.3 
807 
Group III 
Athlete 
F. G. R 
74.0 
179 
1914 
25.9 
882 
Non-athletes 
W. J. T 
74.2 
183 
1770 
23.9 
816 
C.B.S 
71.1 
179 
1700 
23.9 
806 
Group IV 
Athletes 
C. D. R 
74.0 
173 
1908 
25.8 
879 
H. R. W 
73.9 
175 
1842 
24.9 
848 
Non-athletes 
Dr.M 
75.9 
175 
1877 
24.7 
849 
J. P. C 
73.7 
169 
1526 
20.7 
706 
H. W. E 
73.0 
168 
1559 
21.4 
725 
athletes with whom they were compared. Since in these comparisons 
we considered only individuals of similar height and weight, it is clear 
that these differences were not due to changes in body surface, but from 
what is known with regard to athletic training we may maintain that 
the increased katabolism is directly due to the larger proportion of 
active protoplasmic tissue in the body of the athletes, thus suggesting 
that the katabolism of the body is proportional not to the surface area, 
but to the mass of active protoplasmic tissue. 
The detailed report of the investigation has been transmitted to the 
Journal of Biological Chemistry. 
