Attitude and Motion of the Legs 25 



higher knee folding we are likely to have a shorter extension from A B 

 to A C ; and with the high action of hock joint we are likely to see 

 a backward reach and a lessening of forward extension from A C to 

 A B, as seen in Fig. 21. 



There is a general belief that extension proper is affected by 

 and concerns only the fore legs. The use of weights is too often 



F/G- 19 . 



F/o. 2/ 



resorted to as a means of extension ; but the effect is really not quite 

 what it is claimed to be, as we shall see later on. And, furthermore, 

 I hope to prove to the reader that the proper extension of fore feet 

 depends a great deal on the proper and equal swing of hind legs and 

 especially on the proper backward reach or propelling power of the 

 hind legs. 



We are not dealing with a biped but with a four-footed animal, 

 and the attempt at regulating extension or stride or quick and slow 



