660 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



physical activity in tables 194 to 197, inclusive, that it is highly improb- 

 able that any large difference in the activity, either walking or exercise 

 greater than walking, existed on the average with the three squads. 



Table 197. — Average exercise records of Squads A and B during reduced diet, and of normal 

 subjects during uncontrolled diet. 



^A recent operation for hemorrhoids prevented Tom from engaging in strenuous exercise and 

 called for a larger percentage of hours sitting. 



SUBJECTIVE IMPRESSIONS AS TO FITNESS FOR MUSCULAR WORK. 



In the preceding paragraphs the records of general physical activity, 

 as indicated by pedometer readings and other data, made as objective 

 as conditions would permit, have been presented and analyzed. The 

 men who were subjects in the experiment naturally had subjective 

 impressions of their own readiness, ability, and performance in physical 

 exercise. The members of Squad A had an extended period over 

 which to observe themselves and each other. They were intelligent 

 men and all unusually interested in physical exercise and bodily well- 

 being. Seven of them were taking the physical director's course in 

 the college. Their observations during and following the experiment, 

 stated in essentially their own words, are as follows: 



Bro. — November 10: "Enjoy physical work more than last year, no 'logy' 

 feeling, more 'pep'^ than last year." December 19: "I am walking more 

 than usual lately." February 2: ''There have been times in the experiment 

 when I have felt weak in the knees, and seemed to get out of breath easily. 

 The last ten days I have felt better than during the days just following the 

 Christmas vacation." May 21: "The weakness in the knees in the experi- 

 mental period was particularly noticed in stair-climbing. I found that I used 

 the stair-rail more than usual when chmbing stairs. I am sure the diet could 

 not be recommended for soldiers. I have several times said that I should hate 



^Colloquial abbreviation for "pepper," indicating vim or snap. 



