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The Navy SEAL Physical Fitness Guide - Uniformed Services ...

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Recommended shoes are those that provide ankle and arch support, lateral stability,and have a wide, non-slip sole.EquipmentBoxes that are used for in-depth or box jumps should have a non-slip top and shouldnever exceed a height of 1.2 m (0.5 - 0.75 m is recommended: 1.5 to 2.5 ft. and less than 4ft.).Medicine balls are commonly used for many of the exercises. This is a ball thatweighs no more than 10% of your typical training weight. For example, if you regularlytrain with a 200 pound bench press, then the medicine ball you use should be no more than20 lbs. <strong>The</strong>se balls can be covered with leather, plastic, rubber, or any type of fabric.TechniqueAs with other exercises, attention should be paid to proper technique. For example,when performing lunges, the knee angle should not exceed 90°. Any movement beyondthis angle will place undue stress on knee cartilage and ligaments. Keeping the kneedirectly over and in line with the big toe will help maintain technique. <strong>The</strong> step should bestraight out, not to the side. <strong>The</strong> shoulders should always be over the knees during landingwhen performing in-depth jumps.Fatigue from high-volume training can compromise technique and result in injury.When technique begins to fail, it is time to stop the exercise and rest.Program Design and the OverloadPrinciplePlyometrics training should be tailored to account for individual characteristics andthe activity for which one is training. More stress will be placed on the muscles, joints, andconnective tissue of heavier individuals, therefore, bigger operators (weight greater than 90kg or 198 lbs.) should not perform high-intensity plyometric exercises. Persons with aprevious history of injury should be cleared by a medical officer prior to plyometrictraining. As previously stated:Persons with any type of musculoskeletal injury shouldnot consider plyometrics training.A plyometrics program for the special operations community should incorporatethose types of movements (i.e., linear, vertical, lateral, or a combination) required foroperational performance. For example, downhill skiing would require diagonalmovements, close-quarters battle (CQB) wouldrequire horizontal, vertical, and diagonal movements.162 Plyometrics

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