378 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



minimum of 60 mjn. with Pec, the average value being for the morn- 

 ing 72 mm. The average of the records made by Dr. Goodall the 

 evening before is 64 mm. Nevertheless, the appearance of values 

 as low as 60 mm. in the case of Pec and 64 mm. in the case of Vea is a 

 reasonable control upon the low values found the evening before. 



The pulse pressures taken before work on February 3 are not unlike 

 those found the evening before. The morning pulse pressures, with the 

 subject standing before work, range from a minimum of 16 mm. with 

 Bro to a maximum of 37 mm. with Pec and average 29 mm. On 

 the evening before they ranged from a minimum of 20 mm. with Pec 

 to a maximum of 40 mm. with Moy and Vea, and average 31 mm. 

 A somewhat interesting fact is that Pec had the minimum pulse 

 pressure in the evening but gave the maximum value the next 

 morning prior to walking. 



The effect of work upon the blood pressure can in this series of 

 measurements be noted only in the measurement of the blood pressure 

 in the first quarter minute after the cessation of walking. These 

 values are likewise recorded in table 78. In this first observation im- 

 mediately after work a slight tendency is shown for the systolic pres- 

 sure to rise in nearly all cases, although only a few millimeters, the 

 most pronounced rise being 11 mm. with Can. In three cases there is 

 a slight fall. Comparing the average systolic pressure for the 11 men 

 the first quarter minute after the end of work with that measured before 

 work, we find a rise of but 3 mm., i. e., from 101 to 104 mm. The 

 course of the systolic blood pressure in the next 2 minutes was essen- 

 tially constant, there being hardly any changes that are truly signifi- 

 cant, although in general there was a very slight tendency for the blood 

 pressure to fall as time progressed. The two observations made with 

 the subject in the sitting position show slightly lower values than those 

 found for the standing. Except for Can and Kon, the pre-walking 

 blood pressure level was usually regained at the end of 9 minutes. 

 With Can the blood pressure remained at 104 mm. as compared with 

 97 mm. before walking and with Kon it was 98 mm. as compared 

 with 106 mm., these men showing diametrically opposite effects. 

 The fact should be noted, however, that the values compared were 

 obtained in different positions. 



For comparison with the values cited here, we have systoUc blood 

 pressures following walking which were obtained with a normal 

 subject in the standing position in the course of another research some 

 years ago. With this subject (a normal individual walking at the 

 rate of 60 meters per minute for approximately 20 minutes) the 

 general tendency for the systolic blood pressure was to show an 

 increase of 5 to 8 mm. in the first observation after cessation of 

 walking. 



