Fife Youth Darts |
The Throw
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First, let's look on how a dart flies. It
travels along a parabolic curve, the same curve as for instance a thrown
stone or a rifle bullet uses.
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A dart travels in a parabolic curve
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The curve can be higher or lower, this depends
only on how powerful the dart is thrown. A decent throwing technique must
guide the dart exactly along this parabolic curve when accelerating the dart,
and must guarantee that the dart can continue this curve when it has left the
hand.
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How must the dart be moved to keep it in the
right position? To work this out we have to look at the mechanics of the
throwing arm. It can be exactly described as a 'machine' of 3 levers attached
to each other by 2 joints or 'hinges', and with 1 joint attaching it to a
fixed
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The highly useful multi-purpose lever-system
of the human arm
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Looking at the above image, the 2 attaching
joints are elbow and wrist, the fixing joint is the shoulder, while the 3
levers are the upper arm, the forearm and the hand.
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Those of
you who had the misfortune of being tortured by mechanical science in school
will remember that this is a very neat arrangement: It can theoretically draw
every possible curve within its range when the levers are moved properly, and
although the human arm is slightly less movable the parabolic curve is still
an easy exercise.
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The above image already shows the 'aiming'
position when throwing darts. In the following animation you can watch how
the 'levers' and 'hinges' work in a decent darts throw, keeping the dart
exactly along the curve.
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Diagrammatic
animation of a neat darting technique using the 3-lever system
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Credits to
Tom Neijman from Sitepeople for making
this fine animation of throwing mechanics!
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Now with
the mechanical basics clear, we can go on to discuss the
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DO's and DON'Ts of a dart throw
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Before
proceeding you can (and you should!) take yourself some time to watch the
above animation carefully. First watch each element on its own, then continue
to see the whole arrangement, and how each part of it interacts with the
others to keep the dart on course.
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On joints and levers
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The shoulder: This is the only point
in the whole process that doesn't change its position. So you must not move
(that's a DON'T, yes!) your body when throwing. The only throwing action
comes from your arm.
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The elbow: It stays in position
when moving the dart backward, and on some point in the acceleration phase
starts to go up. This is a very interesting thing, because you may have heard
the advice that the elbow should also stay fixed during the
throw. This is actually wrong. Again, watch the animation: A fixed
elbow would force you to release the dart earlier. This is like the
difference in accuracy between a pistol and a rifle. The rifle's longer
barrel increases accuracy. The same does the longer guidance of the dart, and
as we have to keep the dart on course, too, the elbow must be raised in the
later phase of throwing. Also note that the hand still follows the way of the
dart after we released it. This makes the release easier, because we don't
have to find an absolutely exact release point any more. It doesn't matter
much if we drag it out a bit, the dart will still stay in a nice flying
position anyway.
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The wrist: Wrist
action is an often discussed subject. In the animation there is not much of
it, so you see it is not absolutely necessary. But most pro players use wrist
snap because of one reason: It helps in acceleration. Doesn't the way the 3
'levers' move remind you of a whip? If you do wrist snap the tip of our
'whip' (which is, actually, hum, the dart) will go faster, and therefore you
will be able to move the other parts of the lever system slower, thus put
less force in your throw, and this will improve accuracy. But there is one
danger in wrist snap: It's one more thing that must be controlled, and so one
more source for errors.
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While most experts and pros use it, I wouldn't
recommend it to beginners that don't have the natural gift to control it.
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The phases of the throw:
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Aiming:Put your eyes, the
dart and the target you want to hit in one line. Focus the target, not the
dart or that pretty girl/boy just entering the bar. Use aiming points on the
target if you like, or aim in a different way, but: Aim!. Most darters
do aiming naturally, but surprisingly some beginners don't do from the start.
It's a must DO, so do it.
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Backward move: Do this, but don't do
it too fast. Many beginners fear the necessary loss of aiming during the
backward move, but controlling this is only a matter of practice. There are
only few successful players out who omit the backward movement, so it's
another DO for 99 percent of us. How far you move back is a personal thing,
but it's good to move back quite a bit. If you find it comfortable, you can
and should move back as far as possible. You can avoid slamming into your
eyes or nose by pulling back under your chin or beside your cheek (the one in
your FACE, of course!), that depends on your personal technique. A typical
error here is not to pull back enough because control of this is difficult,
but you will thus sacrifice a lot of acceleration space and accuracy. Better
practice more than going the easy way!
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Acceleration: Not that crucial as
you might think. Do it naturally, and don't do it too fast or with too much
force. Do it smoothly in one move and all the way to the follow-through.
Remember the elbow coming up. IF you do wrist-snap, then your hand goes
forward in this phase until full extension of the whole arm in
follow-through.
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Release:As wrote above, with
the right throwing this comes naturally and is no big problem. If you have troubles with the release point, then most probably you do a technical error,
don't raise your elbow or don't do follow-through. This is the critical point
for your wrist-snap. The hand must be in the correct angle to the forearm
here. If it has travelled further, your dart points down at the release
point, and this -well, refer to the 'The Dart' section at the end of this
document.
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Follow-through: A very important
thing. Remember the shotgun-rifle comparison. Best way to follow-through is
to end up with your hand aiming at the chosen target. A typical error is to
let your arm 'fall down' after the release. Just keep your arm in the
straight and slight upward position for a moment, just like in the above
animation, and you will get the feeling for follow-through quite fast.
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Objects of desire
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The dart:The real object of our
desire is last here. Remember to guide the dart along the parabolic curve. In
geometric language, your dart must always be in line with the throwing
parabola's tangent in the point of intersection of your hand and the
parabola. You don't have to tape your throw with a video camera and draw a
perfect parabola on the TV with this neat ever last paint to achieve this, it
usually develops quite naturally (Keep your attention on the following
things: The dart points up in the aiming position. This angle is increased in
the backward movement, and it then decreases steadily in the acceleration
part. When the dart is released it is nearly horizontally, but still points
up a bit. In every circumstances a dart that points down in any of the
throwing phases is bad, bad, bad! You got it? That's another DON'T!
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Wibble: Almost
every beginner's dart wobbles considerably. This is called a “Wibble” Pro's
and expert's darts often hardly ever wibble. Wibbling can have the following
reasons:
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" The dart is accelerated in a curve
that's rather anything else than parabolic.
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" The
dart's flight-shaft system doesn't meet the aerodynamic requirements. Use
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standard form flights and middle length shafts for a first
trouble-shooting.
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Somewhere in your throw there is a noticeable 'yip' of the arm.
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" Most
probable: The dart points downwards somewhere in your throw.
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" Highly unlikely: The dart points too
much upwards.
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That's so
far my analyses on the mechanics of dart throwing. As always, I encourage you
to write me your thoughts, questions or simple 2cents in the feedback section
or through normal mail. |