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MǦc v#?Cޭ# P1NA5n2m F}K¥ 箿dʂ۱:|ti{J,兲DTcjʎJib7 \ Y㸮(KS9᭜rj3LO+5|2'ѻPQ#dN߅]CcyU{(%JіTR3?R8Lk67OCҭ`\uVR;{AqwizVn>IEյa2]:6欩V \ctq{wZֻ<m d;wcW;i7`VFN뜮OҸkRr}Hs&٨l\f]RF`ߞ :W{A'Z<0 q+xб$竫-byo'ErY[`3rCq,.|9eqk[դԯCgVlԸEV(* #ΟUG*0x#i-Kme&NGT9ӑQfXlH3J, d=j!ҋϽqE1LxGH{##rߙɫakK" {ERH+T4ʔ|\$#I@)QJOB)i[SP@rkFBYaE#YTa[")_m[C"T5O b+IFО`5[{<7qj/1m;G9w(IhTXFF~l۪4QZf'0ÿoS.ᓍm1+C\wc ^QX[6oC,Eh1e?VӘm?*նR(anEu4ؠa`x5VXCdRBOR(nG"Wć֚PzrOi'g͡Ebn52+x?DdHq $ $*E5,H44|`JcUO~]^pZ)i jJe/c~"+rHrS 7*T2qԄctice of Strength Training. <br>Zatsiorsky says that if an elite volleyball player were to perform lower body workouts that consisted of partial squats, full squats and leg presses, 60 percent of the total work performed should be with partial squats and only 25 percent with full squats. One reason is that the weight used in a full squat is considerably less than that used in a partial squat (or the BFS box squat), and as such the most important portion of the athlete s lower-body strength curve will not receive maximal overload. (Incidentally, performing full-range exercises adheres to a workout strategy called peak-contraction training.)<br>Accentuation training is popular because it fulfills the requirements of exercise specificity. The principle of exercise specificity says exercises that have the most carryover to specific athletc activities share the same biomechanical properties as the activities the athlete seeks to improve. For example, because a power clean is basically a jump with weights, it would be a better exercise than a bench press for improving the vertical jump of a volleyball player. In fact, as I pointed out in my article  The Power of Giants in the Spring 2001 isue, shot putters who practice the power clean often have exceptional vertical jumps, even those athletes who weigh over 300 pounds. <br>Accentuation training is especially needed in such sports as figure skating, since the additional bodyweight developed from full squats could add extra muscle mass that would decrease jumping height (and, for some athletes, adversely affect the aesthetics of the peformance, which greatly influence the athletes placement). Other athletes who may not want to develop additional muscle mass from emphasizing full squats are gymnasts, divers, high jumpers and even swimmers. <br>Let s examine the box squat in more detail by looking at the concept of starting strength.<br><br>Getting a Head Start on the Competiton<br><br>First, it s time for some more definitions. During a concentric contraction a muscle develops tension and shortens, causing movement to occur. During an isometric contraction a muscle develops tension without a change in joint agle; thus no external movement occurs. And during an eccentric contraction, a muscle develops tension and lengthens, also causing movement to occur.<br>One factor that makes the box squat especially effective for sport-specific training is that the exercise requires the athlete to perform a concentric muscular contraction after a prolonged isometric muscular contraction. The effect of this on performance is that the pause (isometric) phase dissipates the stored energy (part of the plyometric effect) that develops during the lowering (eccentric) phase of the lift, energ