226 



SPECIAL PHYSIOLOGY 



in height, and to have a pubic height of 88 cm.) A part of the energy 

 will be expended: (1) in lifting the body; (2) a part in maintaining 

 equilibrium; (3) a part in overcoming resistance. Express in kilo- 

 gram-metres the amount in (1). How could (2) be determined? 



II. ERGOGRAPHY. 



The term ergography applies to that field of physiology which 

 deals with problems of work done by individual muscles or groups 



FIG. 85 



The air-cushion ergograph. 



of muscles in the human subject. The instrument used is the ergo- 

 graph. This instrument, first devised by Mosso, has undergone many 

 modifications in the hands of Lombard, Hough, Bolton, and others. 



