JFIFC    $ &%# #"(-90(*6+"#2D26;=@@@&0FKE>J9?@=C  =)#)==================================================<K" }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbr $4%&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz ?Rǖq0UtLDA p{֞J .|d`gwZ|Z늖rG]h.mi$ă$ucVCʦfkJ+2Gt}:0k&Im}| =tLzйzq~UJqfU\ : w@ֵ: `HVy\HHiq_J%k | 5u8.xg]לȾ^T>_3zXoJo-` y57tt4wK8P)d[f1}>gg0O,k)$ihd he says that approximately 40 percent of the power for sprinting and jumping comes from the glutes and 25 percent from the hamstrings.&nbsp; "It's imperative that all athletes concentrate on strengthening these muscles with assistance exercises such as the glute-ham raise," says Poliquin.</P> <P>The glute-ham raise enables an athlete to work the entire length of the spine and both the knee and hip extension functions of the hamstrings.&nbsp; This is not possible with the back extension benches found in most gyms.&nbsp; Says Poliquin, "The design of the glute-ham developer allows an athlete to strengthen the erectors especially in the middle portion, which, in most sports, is exposed to high forces."</P> <P>Another plus for the glute-ham-raise is that it is one of the most important exercises for preventing back and knee injuries, especially the anterior cruciate ligament (ACL).&nbsp; "The spine is exposed to great compressive forces in many sports,"&nbsp; says Poliquin.&nbsp; "I've found that