METABOLISM WITH GRADE WALKING. 



219 



,5 



a o 



t; a> 



O j 



co 



-O 

 o 

 tu 



a os 



en t 



co 



N 



I 



a 



<; "3 



C <u 



a 



o3 J 



i-H .- 



o 



CO 



O 

 N 







fl 



CO 



I 



Os 



3 =2 

 i* a 



>- 10 



42 i 



O as 



fa 1-1 



S3 



o 



JJ 

 c 

 'C 

 o 

 a 



X 



CO 



i. 



o 



c 



3 



to SN'O 

 <u E g 



O ,_** a: cu 



IO q 



t- **M tkC<4-4 ^^ 



o o a o-9 



cu -i^ a) 



> >^ > g 



