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Analysis of the technical movements of the 1500-meter freestyle underwater and partially on the water.
The first place went to Italy, because Ledecky did not come. Ledecky one-legged freestyle is not something that the average person can learn.
Ledecky's swimming style has changed over the years. At first, it was a quadruple leg, then a secondary leg, and now it is a secondary leg that is said to be a primary leg, but it is actually a deformed secondary leg. Ledecky has a lot of strength in his upper limbs and a strong cardiopulmonary function. Ordinary people can just learn some normal textbook movements.
The technical moves of this champion can be learned.
We can all learn the skills of this Italian player, but we also have to do what we can.
The body is tall, flat and the DC line type is super good, the hips and shoulders are very stable, the angle of rotation of the body does not exceed 30 degrees, the hip basically rotates no more than 15 degrees, and the stable hip is very stable. The whole process is a secondary leg, the frequency is super fast, and the upper limb is a high elbow and bent arm near the body. When the hand enters the water, the latissimus dorsi directly pushes the water with the high elbow, and the whole process of pushing the water is along the midline, the midline of the body, and the close body is straight stroke.
Whip leg with small hip drive secondary whip leg. The breath is a two-time one-breath, but the left and right sides take turns to breathe. This kind of athlete has a very strong upper body strength, and can be high elbows and close to the body throughout the whole process. But it is difficult for ordinary people to do this, and it may hurt their shoulders. Everyone can do what they can.
Note that the left hand enters the water and hits the right leg, and the right hand enters the water to hit the left leg. Push the water with the left hand and hit the left leg, and push the water with the right hand to hit the right leg. It's the same as running, and when the left hand is stretched forward, the left leg is extending the hip upwards instead of falling down. The body is very stable and the angle of rotation is small.
Ordinary adults must not think about turning around, originally you twisted three bends in the water like a rotten rag, and if you still want to take the initiative to turn, it will definitely turn into a twist of eight bends. Be sure to hold your hips steady. Don't turn your body around. Get the technical moves right. The high elbow latissimus dorsi exerts force one arm to stretch forward, and when the other arm pushes the water, the body rotates naturally.
Press the diagonal to hit the leg, hit the left leg with the right hand into the water, the second leg, the hip drive whip leg, the waist and hip force, and the whip leg.
The left hand enters the water and hits the right leg hard, the curvature of the knee is small, and the real two big whip legs. When the left hand is stretched forward into the water, the right hand is pushing the water, and it is also hitting the right leg.
Only the secondary leg can be said to be pressed diagonally to hit the leg, that is, which hand enters the water to hit the opposite leg, or which hand pushes the water to hit the same leg. Because the four legs and the six legs will hit both legs when pushing the water. Whether it's a second, four, or sixth, it's all played with hands and legs pressed diagonally. Hit your right leg with your left hand and hit your left leg with your right hand.
Moreover, when the arm is stretched out to grasp the water before entering the water, the ipsilateral leg is raised with the hip extended. Many amateur swimmers when they reach forward into the water, the leg and hip on the same side are twisted to the same side, for example, when the right hand is stretched forward, the right hip hip and leg are poured to the right, which is completely incorrect, it will only increase the resistance, and can not raise the elbow latissimus to exert force, it becomes an elbow drag. The correct one should be to straighten your hips upwards and lift them up, not downwards.
When the arm enters the water, it directly enters the water with the high elbow and bends the arm, pushes from the head to the tail, extends the midline of the body, and strokes straight near the body.
The whip leg of the lumbar hip drive and the push of the latissimus dorsi muscle are completed at the same time, and the whip leg is straightened and the hand begins to move the arm. This rhythm is like a secondary leg in the butterfly stroke.
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Appearance memory training, waist and hip driven freestyle secondary leg whip legs, this waist is also forced, the whole process of high elbow latissimus dorsi force high elbow bend arm near the body straight stroke. Pushing the water whip leg is done at the same time. Shoulder-hip hybrid drive.