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.1 As a result of an inspection of a number 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 undergraduate 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, since these exercise records supply evidence, first, as to the relative activities of Squads A and B, and second, and perhaps more important, the relative activities between Squads A and B and a group of undergraduates not on restricted diet of any form. The observations on general health and condition of the bowels, which for the most part presented no particular phases, are omitted.

1To 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 exercise. 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; Pee, 3.6 hours; Spe, 4.0 hours; Tom, 3.6 hours; Vea, 3.0 hours. This shows an average of 3.7 hours per day.

The blank furnished each of the men called for a subdivision of the hours per day spent in lying, sitting, and walking; an effort was made to differentiate the activity further by the inclusion of a record of exercise of greater intensity than walking. The time spent in lying obviously included that spent in bed, together with any other time that was so occupied, and does not necessarily mean the time asleep. The sitting involves sitting in the men's rooms, in class, at meal times, etc.

Table 194. - Exercise Records During Reduced Diet - Squad A

1Chiefly "calisthenics" (marching, dancing, apparatus work) and ice hockey; also 3 1/2 hrs. snow-shoeing, 25 mins. riding bicycle ergometer; "endurance test"; motion pictures. 2Gymnasium work and hockey, 25 mins. riding bicycle ergometer; "endurance test"; motion pictures. 3One hr. gymnasium work; 20 mins. riding bicycle ergometer; "endurance test"; motion pictures.