PHYSICAL ACTIVITY AND ENDURANCE. 



649 



Table 193. — Weekly record of walking (pedometer) — Squad B. 

 [Average miles per day.] 



ESTIMATES OF VARIOUS FORMS OF PHYSICAL ACTIVITY. 



In addition to the pedometer readings, which were objective, we 

 have a number of records which were made by the men in connection 

 with their regular college work and for special purposes. Unusual 

 attention is given at the International Y. M. C. A. College to courses 

 on personal efficiency, and not a few of our men in both squads were 

 members of a class which was called upon to report during a given 

 week the actual number of hours spent in sleeping, at meals, dressing 

 and undressing, in productive labor, and in what might be classified 

 as "waste time." Thus they were more than ordinarily keen observers 

 of their own physical activities.^ As a result of an inspection of a num- 

 ber of the charts used by the men in these courses, a special form of 

 record was prepared and given to all of the men in Squads A and B, to 

 be filled out practically each day throughout the month of January. 

 On these charts a statement was made as to the nature of the exercise, 

 the general health, and the condition of the bowels. Since both squads 

 were on diet during the month of January, a third volunteer squad of 12 

 men, selected from the student body, were requested to fill out a similar 

 blank to indicate the general nature of the activities of the under- 

 graduate not undergoing the special dietetic regulations, the prime 

 object of this third set of records being to find if a difference existed 

 between the regular college undergraduate and Squads A and B. Thus 

 we have records for approximately 35 men, covering somewhat more 

 than 2 weeks during the month of January. 



It will be remembered that during January Squad B was upon a 

 particularly low diet of about 1,300 or 1,400 net calories. It seemed 

 desirable to note if the men in this squad instinctively lowered their 

 physical activities as a result of the greatly lowered food intake. 

 Consequently these observations are reported in rather extensive detail, 



^To secure a rough estimate of the amount of time the men spent in activities more intense 

 than walking, they were asked at dinner on the night of September 27, i. e., before restriction 

 in the diet began, to give an estimate of the hours spent per week in walking or more active exer- 

 cise. These records, here expressed as daily values, are as follows: Bro, 3.6 hours; Can, 1.7 

 hours; Fre, 3.6 hours; Gar, 3.9 hours; Gul, 4.7 hours; Mon, 5.0 hours; Moy, 3.6 hours; Pea, 

 3.6 hours; Pec, 3.6 hours; Spe, 4.0 hours; Tom, 3.6 hours; Vea, 3.0 hours. This ahowa an 

 average of 3.7 houra per day. 



