METABOLISM WITH GRADE WALKING. 



239 



Kg.ms. 300 500 700 900 



FIG. 25. Daily increments in heat-production over 

 standing requirement and horizontal component, 

 referred to kilogrammeters of work done in walking 

 experiments on different grades with W. K. (Val- 

 ues per minute.) 



Cals. 



13.0r 



11.0. 

 10.0. 



9.0. 



8.0. 



7.0. 



6.0. 



5.0. 



4.0. 



3.0. 



2.0 _ 



1.0. 



.oL 



D-iO.O 

 -15-0 

 O-rf.O 



-35.0 



40-0 

 45.0 



Kg.ms. 



200 



400 



600 



800 



1000 



1200 



1400 



1600 



FIG. 26. Daily increments in heat-production over standing 

 requirement and horizontal component, referred to kilo- 

 grammeters of work done in walking experiments on dif- 

 ferent grades with E. D. B. (Values per minute.) 



