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TROPIC LIGHTNING DIVING TEAM BIO-MECHANICS

   

ENTRY  MECHANICS 

Forward Entries

 

Forward entries are easier to perform that back entries, particularly insofar as divers have a relatively long time to sight the entry and adjust the speed of their rotation in preparation for it.

Lateral Come-Out (assumes that the rotation has been completed and that the arms are already on a set position):

Focus the eyes on the water at the anticipated point of entry.

Straighten the body using the abdominal muscles and buttocks, lifting the legs upward slightly, but not so much as to cause an arch

1.  For forward rotating dives, try to point your toes back at the surface from which you dived (on the one meter, slightly higher than that).  Once you master fronts, you can adjust this concept for inwards.

Keeping your shoulders relaxed and your torso hollow, move the arms laterally from “set” position until they come overhead. 

 Flip your wrists such that palms face the water and maneuver hands into grabbed entry position.

1.  Maintain hollow torso and relaxed shoulders.

With the eyes still focused on the entry point, squeeze abdominal muscles tight, push shoulders/arms toward the ears and slightly forward while pointing the toes upward and lightly short of the 90 degree line.

1. Form a vacuum seal with your biceps over your ears.

2. Maintain neutral head position

3.  Orient your hands so that the flat palm is parallel to the water

If you are in alignment and have sufficiently slowed your rotation, hold your entry line.

If you feel you need to “save” the dive, wait until your hands just pass through the surface of the water, break your hands apart by releasing fingers and extending them downward and outward.

Pull the arms toward your hips, following a lateral/slightly in front of the body line position as you sharply bend over into an open pike position.

            1.  The degree of sharpness will depend on the amount of over-rotation on the dive.

Midline Come-Out (assumes that the rotation is finishing low to the water and there is no time for the lateral come-out):

 

While still in your spinning position, focus the eyes on the water at the anticipated point of entry. 

When you feel you are as close to vertical as you can be, quickly extend the lower body by straightening the knees (if you are in a tuck) or lifting the legs hard while squeezing your abdominals and buttocks to avoid arching.  Simultaneously, move the arms to a bent position, close to the torso, with the hands grabbing for entry.

With the midsection firm and the body maintaining a hollow position, and the shoulders relaxed, finish extending the arms overhead while adjusting the hands so the flat palm is parallel to the water.

1. Form a vacuum seal with your biceps over your ears.  Continue to punch through the water if you have not reached a completely straight elbow position before entry.

2. Maintain neutral head position

           If you are in alignment and have sufficiently slowed your rotation, hold your entry line.

If you feel you need to “save” the dive, wait until your hands just pass through the surface of the water, break your hands apart by releasing fingers and extending them downward and outward.

Pull the arms toward your hips, following a lateral/slightly in front of the body line position as you sharply bend over into an open pike position.

 1.  The degree of sharpness will depend on the amount of over-rotation on the dive.

   

Indiana University Diving Coach Jeff Huber Discusses Forward Entry Techniques

(note that his model does a more narrow swim than the one I am teaching :)

Apologies to the deaf that this is not captioned :(

 

 

BACK ENTRIES

Back entries are more difficult to perform than front entries, particularly because divers tend to want to see the water right away when they finish spinning.  In back entries, this tendency leads to a number of problems, including weak kicks, excessive arching, and over-emphasis of the torso’s movement during the transition from spin to entry.

Proper transition from the spinning position follows a “kick, press-out, look, reach” pattern. 

When divers feel they have sufficiently rotated, they should use their abdominals, hip flexors, and buttocks to extend the legs forcefully back in the direction opposite their rotation while maintaining their head-forward position, sighting their toes.  This requires that divers trust that they will be able to successfully complete their actions without necessarily seeing the water, and this is among the most difficult things for divers to learn.

When the press-out is completed, the diver has two options for moving to the entry position:

 

Lateral Come-Out:

Tilt the head back slightly and shift eye focus from the toes to the water, slightly further away from the body than the anticipated point of entry.  If the eyes actually see the anticipated point of entry, it is likely that the diver has aligned the body in such a manner as to “pull” over and not hold the line.  Maintain the rest of the body line as the head tilts slightly back and the eyes “sight” the entry.

Once this position is achieved, move the arms in a lateral path overhead, moving through, but probably not stopping at, a set position until they come overhead. 

Flip the wrists such that palms face the water and maneuver hands into grabbed entry position.

1.  Maintain hollow to slightly arched torso (depending on shoulder flexibility and angle of entry) and relaxed shoulders.

With the eyes still focused slightly further out in front of the body line than the entry point, squeeze abdominal muscles tight, push shoulders/arms toward the ears and slightly backward while pointing the toes upward and slightly short of the 90 degree line.

1. Form a vacuum seal with your biceps over your ears.

2. Maintain neutral to slightly tilted head position.

3.  Orient your hands so that the flat palm is parallel to the water

If you are in alignment and have sufficiently slowed your rotation, hold your entry line.

If you feel you need to “save” the dive, wait until your hands just pass through the surface of the water, break your hands apart by releasing fingers and extending them downward and outward.

Pull arms down laterally/slightly in back of the body line as you open your chest further and pull your head back sharply accelerating the back somersaulting action. Bend the legs such that the heels come toward the buttocks.

1.  The degree of sharpness will depend on the amount of over-rotation on the dive.

 

Midline Come-Out for Low-Finishing Dives:

While still in your spinning position, focus the eyes on spot at which you wish to kick.

When you feel you are as close to vertical as you can be, quickly extend the lower body by straightening the knees (if you are in a tuck) or pressing the legs hard while squeezing your abdominals and buttocks to avoid arching.  Simultaneously, move the arms to a bent position, close to the torso, with the hands either flipping so that the palms are facing the water, at shoulder height, or grabbing for entry.

With the midsection firm and the body maintaining a hollow to slightly arched position, and the shoulders relaxed, finish extending the arms overhead while adjusting the hands (grabbing if you have not already) so the flat palm is parallel to the water.  Continue pressing the lower body in the opposite direction of the rotation to some degree.

1. Form a vacuum seal with your biceps over your ears.  Continue to punch through the water if you have not reached a completely straight elbow position before entry.

2. Maintain neutral to slightly tilted back head position.

3.  Maintain hollow to slightly arched torso (depending on shoulder flexibility and angle of entry).

If you are in alignment and have sufficiently slowed your rotation, hold your entry line.

If you feel you need to “save” the dive, wait until your hands just pass through the surface of the water, break your hands apart by releasing fingers and extending them downward and outward.

Pull arms down laterally/slightly in back of the body line as you open your chest further and pull your head back sharply accelerating the back somersaulting action. Bend the legs such that the heels come toward the buttocks.

1.  The degree of sharpness will depend on the amount of over-rotation on the dive.

Midline Come-Out for High-Finishing Dives:

 

Tilt the head back slightly and shift eye focus from the toes to the water, slightly further away from the body than the anticipated point of entry.  If the eyes actually see the anticipated point of entry, it is likely that the diver has aligned the body in such a manner as to “pull” over and not hold the line.  Maintain the rest of the body line as the head tilts slightly back and the eyes “sight” the entry.

Once this position is achieved, move the arms to a bent position, close to the torso, with the hands either flipping so that the palms are facing the water, at shoulder height, or grabbing for entry.

With the midsection firm and the body maintaining a hollow to slightly arched position, and the shoulders relaxed, finish extending the arms overhead while adjusting the hands (grabbing if you have not already) so the flat palm is parallel to the water.  Continue pressing the lower body in the opposite direction of the rotation to some degree.

With the eyes still focused slightly further out in front of the body line than the entry point, squeeze abdominal muscles tight, push shoulders/arms toward the ears and slightly backward while pointing the toes upward and slightly short of the 90 degree line.

1. Form a vacuum seal with your biceps over your ears.

2. Maintain neutral to slightly tilted head position.

3.  Orient your hands so that the flat palm is parallel to the water.

If you are in alignment and have sufficiently slowed your rotation, hold your entry line.

If you feel you need to “save” the dive, wait until your hands just pass through the surface of the water, break your hands apart by releasing fingers and extending them downward and outward.

Pull arms down laterally/slightly in back of the body line as you open your chest further and pull your head back sharply accelerating the back somersaulting action. Bend the legs such that the heels come toward the buttocks.

1.  The degree of sharpness will depend on the amount of over-rotation on the dive.

 

 

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