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In archery, a stabiliser is a general term for various types of weights, usually on rods, mounted on the bow to increase stability i.e. lessen movement on release, thereby increasing precision. Stabilisers help reduce inconsistencies of the archer's release by increasing the moment of inertia of the bow.〔Charles E. Phelps (Archery Stabilizers – Theory and Practice ) 2006〕 If the shooting technique of the archer were perfect, no stabilisers would be required. Precision comes from repeatability. The reduction of inadvertent movements enhances repeatability. The various types of stabilisers are each designed to minimise a particular direction of movement. These movements are those that may occur between the instant of true aim/string release, and the arrow flying free: not "follow-through" and similar activities, which merely indicate what went before. All weight added to the centre section will reduce trembling or shake during the aim, but energy to hold the bow against gravity will obviously increase. Also, the addition of weight will change the shooting characteristics and matching of the arrows to the bow. The successful addition of stabilisers can only be achieved by actual testing and precise groupings. All bodies have inertia, and it is static inertia and non-static inetia that bow-weights "use", which means that they resist movement. Consequently, on the application of any force on the bow, e.g. 1) muscular force, whether voluntary or involuntary: 2) the reaction of the bow to the acceleration of the bow limbs, string and arrow: 3) the further reaction of the bow as the string becomes taut and the arrow flies free: the actual physical movement of the bow centre section will be less with the addition of weights than it would have been without. Clearly, the forces acting on the centre section are potentially the same on any shot, and by increasing the static inertia, movement will be reduced. ==Poker stabiliser== A long-rod stabiliser holds a weight in front of the bow. It is usually fitted into the centre section in line with the bow arm, or just below the hand position. The addition of this weight moves the centre of gravity (C of G) of the bow forwards, with two results. First, "torque" effect (sideways twisting of the bow-hand) movement is reduced. At full draw, the string prevents the bow from twisting, but on release, the bow can turn sideways to some degree, directing the arrow to the left or right.〔Elmer R.P., ''Target Archery'', 1952〕 But with the forward C of G, the effect is reduced. Similarly, "topping" (upwards) or "heeling" (downwards) inconsistencies of the bow-hand are reduced. Second, with actual movement of the bow-hand sideways, up, down, or any combination, because the C of G is in front of the hand, the bow will turn in the opposite direction, to correct, to some degree, the archer's error. There is also an effect that does not actually give enhanced accuracy or precision, but there are times when this can still be helpful except in the mind of the archer: the pleasing "forward roll" of the bow, as part of the follow-through, with a relaxed bow-hand and forward C of G. 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「Stabiliser (archery)」の詳細全文を読む スポンサード リンク
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