Heat-production Associated with Muscular Work. 



109 



Group D. — Experiments in which a maintained rate of 60 revolutions per 

 minute would have involved the performance of mechanical work on the 

 cycle at the rate of 56 kalories per hour (approximately - 09 horse-power). 





Date. 



Weight. 



Revolutions 

 per minute. 



Name. 



Heat produc- 

 tion, in kalories 

 per hour. 





1913. 

 • Feb. 18 

 „ 26 



kgrm. 

 62 -1 

 62 -1 



60-4 

 60 2 



Kemp 

 ») 



354 

 345 



I 





62 -1 



60 -3 



Average of Kemp 



350 





Jan. 27 



„ 30 

 ,, 31 

 Feb. 13 



,. 19 



54 -6 

 54 -6 

 54 - 6 

 54 -6 

 54 -6 



59 -7 



60 -0 

 60 1 



59 -0 



60 -0 



Bennet 

 » 

 J? 

 >) 

 )> 



338 

 332 

 336 

 333 

 338 



II 

 III 



IV 

 V 



Feb. 20 

 » 21 

 24 

 „ 25 



„ 28 



54 -6 



60 -5 

 60 -4 

 68 "3 

 43 -7 

 43 -7 



59 -8 



60 -4 

 60 -5 

 60 -6 

 60-4 

 60 -3 



A verage of 

 Bennet 

 Rae 

 Hill 

 Sharrard 

 Armstrong 

 ii 



335 



347 

 345 



352 

 340 

 352 



VI 





43 -7 



60 '4 



Average of 

 Armstrong 



346 



Average of I, II, III, IV, V, VI, heat-production of 34 f > kalories per hour. 

 Maximal aberrations "| ^3 .3 Cen *' 



Now, it is always of interest to study the relationship between such figures, 

 and significant powers of the subjects' weights : that is to say, such powers 

 as W the weight ; or W 2/3 , possessing some reference to the subject's extent 

 of surface ; or W 1/3 , in which there always lies the possibility that it is 

 W/W 2 / 3 , or the subject's weight divided by his surface. That there is a 

 very real interest in such a quest is well known in the special case of heat- 

 production during rest, which bears a fairly close numerical relationship to 

 the extent of the surface when other conditions remain the same. I have 

 therefore divided the figures in these different groups by W 1 / 3 , W 2 / 3 , W, W 4/3 , and 

 W 5 #, thus obtaining, in each case, a set of figures with a certain average value, 

 and give, in the table on p. 110, the maximal aberrations observed from this 

 average value. 



