PHYSICAL ACTIVITY AND ENDURANCE. 643 



The pedometers used were all of the same make and were set at the 

 uniform step of 27 inches employed in the factory setting; no attempt 

 was made to adapt the setting to the individual. The pedometer 

 records for the entire group of men are reasonably complete. It is 

 obviously impracticable to report the pedometer readings for the 

 individual men for each day of the entire experiment, hence in table 

 191 we give only a typical set of records for one subject, Vea, to illus- 

 trate the general method of recording. 



Here again the need of normal data is apparent, for unfortunately 

 the pedometers were not given to the men in Squad A until after the 

 reduction in diet took place. For these men, therefore, it will be neces- 

 sary to use normal data subsequently secured with Squad B and other 

 volunteer members of the undergraduate body of the college for com- 

 parison with the values obtained during the low diet. 



A general examination of table 191 shows that, excluding the Thanks- 

 giving and Christmas recesses, Vea walked daily on the average, in 

 October 6.3 miles, in November 6.0 miles, in December 5.9 miles, and 

 in January 5.6 miles. During the Thanksgiving and Christmas 

 recesses, there was a great increase in the miles walked per day, the 

 distance walked amounting on December 31 to January 1 to 30^ miles. 

 The general picture of this pedometer record shows that Vea did not 

 alter his activity materially as the experiment progressed and the low 

 diet continued. 



VARIATIONS IN ACTIVITY AS RECORDED BY THE PEDOMETER FROM 



WEEK TO WEEK. 



Although table 191 shows clearly that Vea varied considerably in 

 his activity from day to day, especially in the uncontrolled-diet 

 periods, it is more important for general conclusions to secure average 

 values for each individual throughout the experiment. In table 192 

 we have tabulated the number of miles, as recorded by the pedometer 

 of each member of the squad, from the beginning to the end of the 

 experiment. These are expressed as miles per day and are usually 

 based upon the average for the weekly periods. Walking records were 

 made by all the men in the squad during the Thanksgiving recess; 

 records were also made during the Christmas recess by 6 men who 

 volunteered to use the pedometers throughout the entire period, even 

 when away from Springfield. Striking differences in the distance 

 walked are evident with the various individuals. In the first 5 days, 

 October 6 to 11, we have a mileage per day ranging from a maximum 

 of 14.2 miles with Pec to a minimum of 4.5 miles with Gar. The aver- 

 age for all subjects in this period is 8.16 miles per day. 



^This unusually high value agrees very well with the actual distance between two towns walked 

 by Vea on this day. 



