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SkR=GDo"PҮpp$k#zj09cutvL݈]pluSmz ?Zמ!fy\q*te4i"2檋+(yVsDc?ʯdsyI:\cPkumwU+qVxkOI⽾XeeڠY5ֆ;8^}NkX4՚d{e5 ];JX|`j\\l 2D6"ch#T[Y祃!?!^g{⛸D*c9^=K;H^NIʤ"PmH%UQԮ/}R9{^G.=*HL:Ê-<0Mg=C!EJH˜96D*Z.NR?geRGPݨo:2qjU0mT=SB6xe]4pKq ~}ܦ@#=ǿRKsF) 33$&&MdC$).;h9dW'-zn==-`ٻiX*!^޸ŕǠ{? M9p_3z]qxv,Dp-=8J'vodRټU c҆?:SqҴ463̪5=Ihn2;4\9; D'-uBeV\k6hxۀRl{S1J;8EO K4@@{TP:@0'\WcGv\ģiycX];C|dCcAPp+>#IqymG|`H~Y1X'u1bJ(_W{ҹlt\kL1N;EBp"`G%}7[I'$ReQ2aEIs ^{EN&,vH e\dˢi90r( Ϧrk{\"b$3S䷡'8Re2The fourth drill is called Rapid Fire. Photos #4,5 & 6 depict this as well. The difference being that you do not stop at each box. You jump continuously and rapidly from one box to the next: floor, box, floor, box, floor, box, then land and jump straight up as high as you can. As you jump, bring your knees up as high as possible to your chest as shown in Photos #7, 8 & 9. You should go through this series three times.<br>If an athlete cannot bring his knees easily to his/her chest, they are finished with this segment of Box Jumping. Those that can, go to The Rapid Fire To Big Box drill. To do this, bring in the 32-inch box. Go through the Rapid Fire sequence and at the end, jump up on top of the big box as in Photo #10. From this point, if your ability permits, you can keep increasing the height of the box. Photo #11 shows the addition of our booster box which can take it up to a 40-inch height. Photo #12 shows P.J. making this height. <br>Even taller boxes can be used as in Photo #13. The next photo (#14) is of P.J. again. He can easily jump to a 50-inch height. Photos #15, 16 and 17 show P.J. jumping over the 32-inch box with one leg. Obviously, this is extremely advanced and is not something even a gifted athlete should try right away. <br>We believe all athletes, regardless of athletic ability, should do our Box Jumping routine. We even show you how to spot, not only for safety, but for a unique way to help all athletes be successful. Jeff Scurran, one of our BFS Clinicians, coached literally thousands of athletes through the years at Sabino High School in Tucson. On the video, Coach Scurran shows this unique spotting technique and says,  I never had an athlete who stuck with our program not be able to jump to the 32-inch box. This includes every lineman and every athlete involved in girls sports. Get this video. The benefits will be enormous.s, 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 Competition<br><br>First, it s time for some mre 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 angle; thus no external movement occurs. And during an eccentric contraction, amuscle 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, energy that would otherwise be used to help during the lifting phase. <br>In powerlifting competition, research has shown that an extra second delay waiting for the judge s signal to prss the weight off the chest in the bench press could result in a five-percent difference in the amount of weight lifted. This is one reason that although it has been allowed in competition to have spotters place the barbell on the chest to begin the lift, it is a technique seldom used because there is virtually no plyometric effect with this technique (besides the fact that you have to have well-trained spotters to properly place the weight on the chest).<br>In certain sporting movements, an isometric contraction in the set position precedes a concentric contraction, but tU8{=Ӵ .KI%Š>J SMM%R_Uj`Qcu$}Vm>l{(J~lV) z'f}m)]ZtN\J یbHFA')QCr"#d{QdJkPT(y)޿vjwc_`yT 7ј>#o#RԪh+em8|#azMIQJ^Uv#N>nv@B"bwkJnjS,#Y6S]x肭8lz8H`PW|r֣b ',z $Ub7ҧv-q(~Ng7r{x `']N$f*BTd-C`k ];#