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Football strength is a training regime, considered the most complex physical quality to be developed by an athlete.〔Yessis, Michael. ''Build A Better Athlete''. Equilibrium Books, 2006 (pg. 101).〕 The training regime, exercises used, how the exercises are performed, and the types of equipment all play important roles in achieving desired results. ==The need for specificity== The role of strength preparation is highly valued in American football. However, it is usually performed for character development, rather than for the specific work of the intramuscular system required in football. The role of strength preparation is crucial not only for increasing muscular strength, which by itself provides an advantage, but also for developing the specific training effects of strength exercises.〔A Komarova “Strength and Technique”. Track and Field, 12: 13-14, 1974〕 From the adaptation of the neuromuscular system, to the stress of high eccentric and explosive demands required in football, more specific and intense exercises are needed over of the general exercises commonly used to produce football strength, such as jump training and Olympic-style lifts. If strength exercises are not used effectively, there will be a disparity between the functional levels of the skeletal muscle system and the capabilities of the neuromuscular system. Specialized strength work produces a strong training effect on the intramuscular system. Specialized exercises are used to develop the physical and psychological qualities that apply directly to football.〔Bondarchuk A. P. Transfer of Training in Sports Volume II translated by Dr. Michael Yessis, Ultimate Athlete Concepts, Michigan, USA, 2008.〕 For example, using his hip flexors, a player can pull his leg from behind his body to underneath his hips forcefully, duplicating the knee drive action used in running and sprinting.〔Yessis M. Secrets of Russian Sports Fitness and Training, Ultimate Athlete Concepts, Michigan, USA, 2008.〕 By varying the repetitions and speed of execution, the exercises can either be explosive (high intensity), allow the athlete to develop muscular endurance, or fall somewhere in between, all predicated on what the football player is trying to improve. Developing physical abilities specific to running, cutting, and jumping technique will have profound results in football-related strength and game performance. In addition, execution of certain specialized exercises requires concentration to develop the neuromuscular pathway needed.〔Yessis M. Build A Better Athlete what’s Wrong with American Sports and How to Fix It, Equilibrium Books, A Division of Wish Publishing, Terre Haute, Indiana, USA, 2006.〕 A strength exercise which duplicates a particular portion of a skill requires ultimate concentration and perseverance to repeat exactly the same movement time after time. This does not mean that general exercises are of no benefit. They play a very important role in the initial stages of improving a player’s performance. The general exercises precede the specialized exercises to develop a base upon which the special exercises can be performed most effectively.〔Issurin V. Block Periodization 2: Fundamental Concepts and Training Design, Ultimate Athlete Concepts, Michigan, USA, 2008.〕 All the advantages of specialized strength work can be realized only with its effective organization.〔Yessis M. Explosive Plyometrics, Ultimate Athlete Concepts, Michigan USA, 2009.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Football strength」の詳細全文を読む スポンサード リンク
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