Effects of Gymnastic Training cj?i Amerlca/tWo/ne/i. 57 



tlie triiiniiig (0.2845) is higher Ukui the 80 [)er cent viiliie 

 before the triiiiiing (0.2730). 



Comparing with the subjective estimate of ability to climb, 

 referred to above, we find that the vital stren<>'th-wei!2lit 

 index necessary for climbing is — 



With (lilliculty (about 0.2000) before training at -10 i)er cent, after 

 training at 10 per cent. 



AhiHty (about 0.2500) before training at 70 per cent, after training 

 at 30 per cent. 



Ease (about 0.3000) before training at 90 [)er cent, after training at 

 GO per cent. 



Great ease (about 0.3500) before training at 00 per cent, after train- 

 ing at 75 per cent. 



Potocr Index. The extreme values of this index are, 

 before training, 18.6 and 4.9, respectively ; after training, 25 

 and 9.3, respectively. Table XVI gives the values of the 

 following percentile grades : — 



TABLE XVI. POWER I>sDEX. 



Percentile Grade. 



Before the train- 



i'lg 



After 7 months' 

 training; 



The value of the 10 per cent grade (11.65) after the training 

 approaches the 50 per cent value before the training (11.9), 

 while the 50 per cent value after the training (15.7) surpasses 

 the value of the 95 per cent grade before the training (15.5). 



The anthropometrical data which we have presented above 

 justify the opinion that the susceptibility of American women 

 to gymnastic training is considerable. The tables of strength 

 and lung capacity, and, still better, the computed indices, the 

 vital strength-weight index, and the power index, show that 

 by seven months' training the mere physical working capacity 

 of these women, such as manifests itself in gymnasium work, 

 has grown from the 10 per cent grade to the 50 per cent grade, 

 and from the 50 per cent grade to the 80 or 90 per cent grade. 



