Effects of Gymnastic Training on American Women. 55 



Imperfect climbing under difficulty corresponds to index 0.2000-0.2500 

 Growing ability to climb corresponds to index . . 0.2500-0.3000 

 Ease in climbing '' - " . . 0.3000-0.3500 



Great ease in climbing " ^i *. ^ ^ 0.3500- 



While the vital strength-weight index grows parallel with 

 aptitude in such exercises as demand the weight of the body 

 to be lifted by the individual's own muscles (as climbing, 

 jumping, etc.), the power index shows a more marked corpe- 

 spondence with the growing capacity in such exercises in 

 which outer resistance is combated. It deserves to be noted 

 that the power index, being the product of vital index and 



fL CY.T S\ 



total strength, i. e., f ^ j, is also the product of vital 



LCx TS 



Weight-Height Index. The extreme values are, before the 

 training, 0.454 and 0.270, respectively ; after the training, 

 0.454 and 0.259, respectively. Table XII gives the value of 

 the following percentile grades : — 



TABLE XII. Weight-Height Index. 



L C Y. T S 

 strength-weight index and weight, i.e., — ,..t, — XTF 



The general tendency has been towards a slight diminution 

 of this index under the influence of the training. 



Vital Index. The extreme values are, before the training, 

 0.0710 and 0.0307, respectively ; after the training, 0.0720 

 and 0.0409, respectively. Table XIII gives the values of the 

 following percentile grades : — 



TABLE XIII. Vital Index. 



Percentile Grade. 5. 



Before the train- 

 ing 0.0384 



After 7 months' 

 training 0.0438 



0.0407 

 0.0450 



20. 



0.0430 

 0.0475 



0.0456 

 0.0495 



50. 



0.0480 0.0499 0.0513 



0.0506 0.0530 0.0550 



0.0536 

 0.0565 



0.0570 

 0.0590 



90. 



0.0602 

 0.0630 



95. 



0.0661 

 0.0661 



