Drought and four swimming strokes, double anchors, elbows, holes, horses, sneaky neck, snakes, sloppy, two full valguses. Into the water, hidden arm The shoulder, the inside is back, and the pull hold down. The lower low high, sand stretch, the bandage abdomen, the floating surface.
Structure and technical point
(1) Swimming operators are in gliding posture, and the body is close to the horizontal. About 80% of the head is sinking in the water, the face is slightly forward, the arms extend, the palm is at the outer side (2) catching the water at about 7 to 9 inch, and the double hand is switched on the side, at this time Exhalation action. (3) There is no obvious buckling of the arms, continue to the outside, and the exhalation continues to increase. (4) When the swimmer head begins to slightly, the elbow joint begins to flex, and the upper arm begins to rotate. (5) When the arms reach the maximum width, the elbow is 110 degrees, and the elbow posture is obvious. (6) The head continues to lift, and when the mouth is exposed to the water, the last exhalation is completed. The hands started to complete the final promotion. (7) When the arms are prepared, the suction begins, the elbow does not pull to the rib, the knee joint begins to flex, and go back to the leg action. (8) The mouth is closed, the inhale is completed, the double foot is brought to the buttock, the elbow joint continues to extend, and the arms continue to move forward. (9) Go back and legs. (10) The neck is buckling and the head continues to tilt down. Double feet, the legs begin to rearward, push the water, and the arms go back to the hand. (11) After pushing and starting together. Swim operators are closed at this time until the other arm moves. (12) The arms are completely stretched, and the hands are slightly lower than shoulder level, and the legs are close to the completion. When the swim operator completes the water, it is concentrated to make the body a straight line. He will keep this gliding posture brief time, then when he feels slow, the other arm will start.
