JFIFC    $ &%# #"(-90(*6+"#2D26;=@@@&0FKE>J9?@=C  =)#)==================================================" }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbr $4%&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz ?( (4}D MjjsE+<%eCSr]=m,D>Hݙ)9IG(=j 1C׼%j "G9uڼWsDD8Sږ4ޮ2lL(>P GNxgP\0~8',_+;Fǖ q߭j$c#URbAҡED9FRn9lo=)6Zk`OjG~7 $UFsJ9Tn=*q/5 aZVCZFW#sZ/{⠙9sBbh!*1PYbOR1_#F2+FFI8h7 =(#2(u#qZ,Ob9k -|!Hi (Wl]^FbA^zVWwgUO1ѦW;]`drwMƕkgIeWtrַ1e/ F /O1O\g|-e-e }y}B\\5o-%V^L.FFsEe{NE8 (ek\rʐ~"ͮΛ96=4{IrE$})$kATn@栒2$ I,HbOu4iw8?u~`i.]K8m[HZ2FFF3Jh+ŕq5vC2pv#bc4HF#_*:xbg|c}z\VW0xJt?ZƐmvҽc')r={W{@''UwwT]Кm{;EBXАvw} Fʏɮ #tq~ֿg-DH22}_5G#poʼk^&խ̷bdl"( Vcb"j]vP\19WWЎI.`r'Gi q 9sZ^})lq&9>d݌>ʁq)%tvE]KSӣ57I%m㉙<םiC̪rp}kLqXgyLN>'KqN)ZIB{CQDMEZ1f(UdހU#'ޭZ֩ oP3WvDޣه[?Y0"Ҁz~'+>]٧H8񏁘JKsov@3|mlF1ܹd-@9km. P500KVfjč`{P;{T\e{X22רSqxKHn,Sysl;HAyj6[\-ZDΌFpW9Ҕ΃qjv[ G:iU5^!~Zscp6IoǶkʵ+IRWd3Ն֧O{;:g9zVq")o3*:d 섚YGbk'WPFG*=NK$Մ6V3K4ԪOa^AxZt5I$8M-'r>^3կbƓ#80SN09L[rU-˩kHmV*P3ɨ'5e!JoqOSOSZ\THntҴIry'νNд{:n]ZL:5JstY6N]ψtp@mƒoQHm+X(K8s@Vs p=XlAMKA ӔnBZXc;ЁWQ$(W$<*=y((3VmzS۰:jLNrNڼzlV©8!s*A潿zz6yw5KroE-nnA$zr@~~?Ov>Ko8>7Gcw=@/:(DŽT%ɓ֦O\tƯܟ㹫/l ӐHYd<Č`/^{G<[g(m,((s w:-uYtR)arTSu=4HNß_k4ʚ3H3g޽c:SF[+WG$b@GOzLUv=b& ,Ye*pG׎73jbuqWy!~g5\XI J($wQj>D̿q m ?yg='ʼnsi^LOL/5ggyҗ9/N~V{u,}F{±t@t2:$~dVӀsֶ[ @y1I㊑==j X☉r:QOq֊(GRFH?Jiqk|;į.A0{ &C[ߊ8vωXC!n;W znL»?WGE7c9}O梛Sz(@kQR)٘VpOZdX\H# rޅmxMA^9B OY7y JH\ 篵bf<_cgYCan@?9;L;n<~i6mM)48XһQ.ᙉBۉ=!]-YIA85rCVgG"R4nde!@xjԞ[{VڲŦhRqsM:(.`2MSUb3w -CF𞧭^~XV]OqWu:K-riB*1D/n.3l4RS1dD*+zn~I$pp=AK= `Fp3*„m>_ ҳ8<ړJ%luEU n<(qEW9Tzkhcu E?($sEbiCc1-Zdo$vcBsuijv?QP*kcrJQ9pb1R'+:R8E>B+Ms qDPd>$%W vㅐmP= W3qżWK]REVU~mCFfo5Ρs!%,O+EʜWuM{ n(f<&A@Ҧ.@gO.mpOb̄:Vτl|=3^g4a!~4ty9M2M66\JÐ*ťA.Wcx^EHf*(8XAIϽ].yZqQP wg$☠+` Ӌq ~8$j rO$19<ګJ;=i0+OVȢE)\gE^ Z+"9+7jYnɈpI+G *pABw(9?R)6]@Tj>,}=Xl]#=Mj7]mPn{aszmf'[Q$۲+ ?:O*;$ky9x Pj11qLSB/ר4\75]P}qܖ*^v*'(0e7sW3i1a2|knƫ_Mq!i^Wl|5<اQKV6l4|ߩuq]wuh4uWW K/,웺l׍:4ؖ$jU-nuU|D22QWM1dՁn7] $&LHdD٣"PIAED]l@B@=*2C\1r}*R:t͊AIϾm/C=hڴ5pI\ksA袲$z8@w |QSO04QZ§??J(GC"ɬBAw(EUP8 0(Nj3i0 \2Gl{k6-M[J]ny[,T`^+>GTxeGld5疚DwWڀf`gʴ-Ū*r#8ϭ)Za*qM}x W+⾰W&ķ-[F[ \4嘚iXvIsu^F$~UPIݩA++Xn<:-%.cJ=s湟9C1׹4-w%2"]RuVA&5˘B@aD}Q(;"6~9,Icic|HF Ij͍v$B+D:SVka}0za*4H‡;yچ;6 p95jRWQB]W<;}= Eqbآd$ЌgJ/BW$>DZs:\މ6W5 aL$w6Js>xbaǭv K}Fr<J{U5Ve4Ǫ#5Bm1! Ow&pcuWlrźe>wţKl`pEr/(/L:X$˸}\ڱU+~ j,VOhv* v8IHɬC×u-„uw/܎| )V=,Q\2 Ȏ@~gEPԦnoJ+ZjOgWv]I!8 t=g]CW^®[J' U;'񭨽,̱QӼw[ݝR""o|t/v|O ?1K0'9֡ڳ=mu}y"F+ygpp}3Dy B$c4W z`;%Ty@ž lRNܞzt&_n@j9fimŸD/b{Ė!@F4WT589KTċAQeG/;Wt+BFnɰdm?>a 1Z4e#ץcn-ЁlYܼdCqFdf8@ssFm՞mYJ x\Ξ eToAW湒ց# ~e( iTo illustrate his point, Siff compared the stress of squatting with running.  Suppose that one child runs a few hundred meters a day in some sporting or recreational activities. This can easily involve several thousand foot strikes in which the reaction force imposed on the body can easily exceed 4 times bodyweight with every stride. Now let another child do a typical average weight training session with 3-5 sets of squats (say, with 10 reps, 8, 6 and 4 reps), with bodyweight or more for the last set. That bodyweight is divided between the two legs, so that, even taking acceleration into account, the loading per leg is bodyweight or a little more, while the spine is subjected to the full load on the bar. In other words, the legs and spine in controlled squatting are exposed to significantly less force than in running and jumping. Normally, exercises such as squatting will be done no more than twice a week for a total of about 60 repetitions, while the running child will run every day and subject the body to those many thousands of impulsive foot strikes. <br> It does not require much scientific knowledge or computational genius to see that the cumulative loading imposed by simple running activities on the lower extremitie