JFIFC    $ &%# #"(-90(*6+"#2D26;=@@@&0FKE>J9?@=C  =)#)==================================================rK" }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbr $4%&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz ?RF?;E u׏r\D)IU;K5xF;j9-Wץ dcE1d;pHMseG85o`(^W< JZX㏯jIjb9 9 m"D(*8P;E0啶IX5b|ͼsΦ~F+0;fFOrFRT;yEiNW%ԱA gZx cj3 ~z!8$i(H){=9h\qL6䏗GzN%e{vFXEYmNOZF]Aaۯ?I!=ǡ\UieeW(\*sKDkw&6S g+sIq+)6ӅJ[q9 gֳ汿mAڴ[GX3bYYFr ?L$\?gPD+`p{:ڊBJ⡳ ᕉ<+Vi$g 5$ R#KV trԟgx8gnLWEۛ8ԌrrI?jviXFrk҄- i'V0Kn@$6ɑCrK uxia֖ "/ӎG=)rermS;o0#K sDk,[dY @32Lp\;ƚrGZ .oX3I"N1R@Z>[AP\sb?_,x$Jҥ$ZXQRkwǐ$j;mA!sqd橢Vvܝ٨ˏ촮mfG+gN,tۋoね- A7ޒexovʎI&]y)`u{iA!zӬ5D64lM4D8!:rHqLgsZ/#HœQy6^N81ڔ)J cumulative loading imposed by simple running activities on the lower extremities and the spine is far greater than the cumulative load of two or three times a week of weight training. Does this now mean that we are justified in recommending that children not be allowed to run, jum, throw or catch because biomechanical research definitely shows that such activities can produce very large forces on many parts of the growing body? <br>It should be obvious then that there is nothing wrong with running and other normal activities of childhood, and therefore no reason to disallow activities of lesser impact, such as carefully structured programs of weight training.<br>Siff also notes that bone density scans have proven that youngsters who do competitive weightlifting (i.e., the snatch and the clean and jerk) have higher bone densities than children who do not use weights, and that clinical research has not shown any correlation between weight training and epiphysial damage. Further, an extensive Russian study on young athletes, published in a book entitled School of Height, concluded that heavy lifting tends to stimulate bone growth in young