Fisher — The Fffect of Diet on Endurance. 21 



much as of muscle power. In these cases the men had some difficulty 

 in remembering the original degree of fatigue. But the increases 

 were so great and the men were so positive as to their feelings that 

 there remains little room to doubt the substantial correctness of the 

 results. In a few other individual cases, as of Lw. and Lq., whose 

 records in test 1 were sometimes stopped by cramps, there is some 

 room for doubt as to the correctness of the recorded improvement. 



The second proof that tlie fatigue of the men in the June tests was 

 less than that in the January tests was found in the fact that the 

 stiffness and soreness which followed in June were markedly less 

 than in January and of much shorter duration. This Avas true of all 

 the eight men who showed improvement, except R. 



The third proof of less fatigue in June than in January for the 

 eight men is that in June the men finished the ordeal of the endurance 

 tests with more strength left than in January, although, as we saw 

 from Table X, they began the two tests with slightly less strength. 

 The fact that they had more strength left after the June test is made 

 evident by the first part of test 6, given below, which in each case 

 came after the endurance tests were nearly or quite finished. This 

 consisted in lifting a 50-lb. dumb-bell. The weight being so great, 

 this was practically a test of strength rather than of endurance. 

 Now all of the eight men who showed improvement in the endurance 

 tests of Table XI, showed improvement in this strength test also, as 

 the following table shows : 



TABLE XII. 

 LIFTING (by biceps) 50-lb. DUMB-BELL. ^ 



Bnt, as we have seen in Table X, the strength tests taken before 

 the endnrance tests showed a slight falling off in June as compared 

 with Januar}?^ for all but one (Lq.) of these eight men. In other words, 

 in June the men began their endurance tests weaker than in Jan- 

 uary, but finished them stronger. The larger residuum of strength 



•^ This part of test 6, being one of strength rather than of endnrance, was not 

 included in the endurance Table XI. Had it been included it would have 

 increased even more the percentage of improvement shown, for it shows an 

 average increase from 2.4 to 8.4, or 250^. 



2 Not to limit. 



3 To limit of muscle's capacity. 



