Iron County Record | 1904-10-01 | Page 5 | Strength at Various Ages

STRENGTH AT VARIOUS AGES. Muecleo Have Their Stnnes of De velopment and Decline. Careful Investigations havo proved that tho muscles, as well as other " j orgaus of tho body, havo their stages I of development and decline.- Tests of ' tho strength of several thousands 1 j of peoplo havo boon mado by tho uso of a dynamometor (strength measuro), " and tho following are given as tho 5 averngo flguros of tho whlto race. ' The lifting power of a youth of 17 Is r 2801b. In his twontloth year this Increases In-creases to 3201b., and In his thirtieth . and thirty-first years It roaches Its height, 35Clh. At tho ond of tho 3 thirty-first .year tho strength boglns to decline. By tho fortieth year it liar decreased Sib., and this dlmlniv , f tion continues at a slightly Increasing , 3 rate until the fiftieth year Is roached, r when tho figure Is 3301b. After this iporlod tho stroagth falls nioro and ! hnoro rapidly. '