PHYSICAL ACTIVITY AND ENDURANCE. 661 



to see our soldiers put on that regime. Under the conditions of an athletic 

 contest, two teams may go through substantially the same motions and the 

 same team plays, but one team does it with more snap and gets there quicker; 

 that team is going to win the game. It was just that added snap that the men 

 on the reduced diet lacked, and which would be the essential thing that a 

 soldier must have in order to succeed." 



Can. — November 10: "Requires more effort to climb stairs, to go out for a 

 walk, and similar activity. One has to use more will power to accomplish 

 the same things. One tires more easily. On one occasion, I felt exhausted 

 after playing soccer in which I walked about 16 miles in all." November 24: 

 "Heavy gymnasium work yesterday and got very tired." January 12: "Since 

 vacation I have felt the same as at the beginning of the experiment, generally 

 tired, with feelings of weakness." January 26: "One day I may feel good, the 

 next have a great lack of 'pep'." February 2: "To-nigbt I feel pretty 'rotten' 

 as a result of yesterday's endurance test." February 8: "There is no weakness 

 now and I have much more 'pep'. I have not been lying down at noon time 

 as I did during the experiment to save myself." May 22: "In general, lack 

 of endurance was manifested in athletics in my case. Think I could not 

 have kept up the low diet much longer. I believe that if the mihtary were 

 on the same regime, the efficiency of the individual soldier would be 

 decreased." During the experiment he adopted the method of hurrying up 

 and down stairs to get it over with on account of the uncomfortable feelings 

 in the knees and thighs. 



Kon. — November 10: "The staying power has not been very great; have 

 noticed absence of 'pep'. Feel weak in the afternoon when running with 

 football." February 8: "Have done but very little physical work since close 

 of experiment and therefore can not make a good comparison; feel stronger." 



Gar. — November 10: "Physical power very much less than that before low 

 diet, less endurance; tire easier if I walk any distance; weakness in legs felt 

 when I go upstairs; very tired after teaching 6 gymnasium classes on alternate 

 days at the high school." December 8: "Feel good physically." January 12: 

 "Felt weaker this morning than at any time while on the squad." February 

 8: "No improvement in physica^l work noted as yet; I have not done any 

 gymnasium bar work so far. The first day or so after the experiment I was 

 very sleepy." 



Gul. — November 10: "Felt normal until the last two or three days, when 

 I experienced weakness, and lack of 'pep'. Somewhat more tired after the 

 boys' club work at night than before, but overcrowded with work." Novem- 

 ber 24: "A little tiredness in legs develops in the evening, otherwise all right. 

 Worked at writing all last night." December 19: 3| hours sleep last night; 

 usually take 4| to 5 hours sleep. I do not have time for more." January 12: 

 "Feel a Httle faint. It commences to be pretty much of a drain; notice it 

 physically more than before vacation." January 19: "Subject, fasting, com- 

 pletely chinned himself 12 or 13 tunes in the laboratory." January 26: "Felt 

 good all the week." February 8: "Physical work is 'below par. Could not do 

 certain exercises in gymnasium. Think it is because I am eating so much." 



Mon. — ^November 10: "Feel weak from hunger; no weakness in the walk- 

 ing upstairs; weakness when running or in football; haven't the 'pep' that I 

 had before, but would not hesitate to scrap with a friend." November 24: 

 "Not so much 'pep' as before the reduced diet." December 8: "Weakness 



