45 seconds, w i t h r a t e d perceived e x e r t i o n (RPE) g i v e n a f t e r 15, 30 and 45 seconds. The whole t e s t s e r i e s was repeated twice. The r e s u l t s show t h a t i t i s p o s s i b l e t o e v a l u a t e d i f f e r e n t body postures by RPE a c h i e v i n g a t o t a l r e l i a b i l i t y a-value over 0.96. Despite t h e f a c t t h a t the r a t i n g p a t t e r n between t h e d i f f e r e n t postures was t h e same f o r a l l subjects, i t i s shown t h a t each person assessed according t o a c e r t a i n i n d i v i d u a l l y -i n f l u e n c e d p a t t e r n . A c e r t a i n person can f o r example, d e v i a t e c o n s i s t e n t l y towards higher values on Borg's scale, a so-called " h i g h r a t e r " . F i n a l l y , the d i f f e r e n t postures were grouped according t o how t h e r a t i n g s changed i n time ( r e g r e s s i o n slope between the RPE's a f t e r 15, 30 and 45 seconds). The t h i r d -c l u s t e r , which showed a h i g h b a s i c r a t i n g -l e v e l and t h e g r e a t e s t regression slope,
A representative sample of about 3% of practically the whole population of Swedish 18‐year‐old boys has been examined in connection with enlistment to compulsory military service. The sample consisted of 1 789 boys of 18. The variation of body weight (b.wt.) and other body dimensions such as body height (b.ht.), femoral condylar breadth (right side), chest circumference, waist circumference and muscular strength are presented. The predicted b.wt., reference weight (RW), calculated from b.ht. and femoral condylar breadth are shown in Tables. The quotient between measured weight and RW, weight quotient (WQ), is used. The correlation between b.wt. and femoral condylar breadth is higher than that between b.wt. and b.ht. Individual differences, as regards fat and muscular mass of the body, are discussed as reasons why in some cases the b.wt. differs considerably from what is predicted from b.ht. and femoral condylar breadth.
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