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archery girl
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Archery Girl

• Release aids
Archers using compound bows usually use a release aid to hold the string and release it precisely. This attaches to the bowstring just below the nocking point or at the D loop and permits the archer to release the string by the use of some form of trigger. When such a device was first invented (patent filed in USA, 1879) it was known as a "clutch". The trigger may be an actual trigger lever which is depressed by a finger or thumb (positive),or held then released (negative) but there are numerous types. Hydraulic and mechanical time delay triggers have been used, as have "back tension" triggers which are operated by either a change in the position of the release or "true back tension"; that is to say the release triggers when a pre-determined draw weight is reached.
A mechanical release (the use of the word "aid" can be omitted when context is appropriate) permits a single point of contact on the string instead of three fingers. This allows less deformity in the string at full draw, as well as providing a more consistent release. This is primarily because the most successful types operate with positive pressure, whereas the conventional 'fingers' release is negative. The mental process of applying positive pressure tends to assist the archer to hold positive form overall, negative can lead to further negative effects.
The mechanical release holds the string by retaining it by some form of gate or loop of cord. The gate or cord is released by operation of the trigger, allowing the string to push open the gate or cord. Consequently, any sideways movement of the string, and hence arrow nock, is likely to be less than if fingers were used. It therefore follows that flexing of the arrow shaft during acceleration is going to be different from a finger release. Therefore "arrow / bow / archer" matching will be different.

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Album name:Sport and Fitness
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Keywords:#archery #girl
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Date added:May 31, 2017
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