PHYSIOLOGICAL EFFECTS OF GRADE WALKING. 



265 



TABLE 79. Pulse-rate of E. D. B. with increasing amounts of work in grade- 

 walking experiments without food. (Values per minute.) 1 



1 Based upon figure 29. 



the percentage increase over the standing requirement for the oxygen 

 consumption with each 100 kg. m. of work, clearly indicated in tables 

 58 and 59. 



In figures 30 to 32, a few typical curves are given of the pulse-rates 

 of E. D. B. during grade walking with the accompanying changes before 

 and after the exercise. The pulse-rates immediately preceding and 

 following the beginning and end of the exercise will be considered in 

 another section in discussing the transitional periods for changes in 



100 



FIG. 30. Typical pulse curves of E. D. B., with subject 

 standing, walking on a level, and walking on an incline. 

 (Values per minute.) 



2, subject standing; 3*. walking on a level; 3**, walking on 

 an incline. Black points, records during experimental 

 periods ; open circles, records between periods. Curve 

 A, Nov. 5; B, Nov. 6, 1915. 



