Backstroke movements, backstroke techniques illustrations

The backstroke technique is because the head is exposed to the water surface, which makes it easy to breathe; lying on the water surface is relatively labor-saving. Therefore, it is deeply loved by middle-aged and elderly people and those with weak constitutions. The technical links of backstroke are divided into: 1. Backstroke body posture 2. Backstroke leg technology 3. Backstroke arm technology 4. Backstroke coordination techniques

To learn backstroke well, you must fully master the key points of backstroke and learn backstroke skills. During the process of learning backstroke, you must pay attention to the backstroke head skills, backstroke leg movements, backstroke arm movements, and backstroke waist postures.

Head skills:

In backstroke techniques, the head plays a "rudder" role and can control the body to rotate left and right. The head should be relatively stable, and do not shake up and down, left and right, but the neck muscles should not be too nervous, and the back of the head is in the water. , The water level is near the ear, and you can see above the legs with both eyes.

Waist position:

While swimming in the backstroke, the waist muscles should be kept moderately tense, so as not to make the body too straight and flex the hips into a sitting and lying posture. Lift the ribs, do not hold the chest. When swim in quickly, the body's angle of attack can increase the position. Athletes with higher levels not only have their shoulders and chest exposed to the water, but also their abdomen are often exposed to the water.

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Backstroke leg skills:

When the downward pressure of the leg movements ends, due to the resistance of the water on the calf and the restraint of the thigh muscles, the thigh and the calf form an angle of about 135-140 degrees, and the calf and the horizontal plane are about 40-45 degrees.

Backstroke leg skills:

When the downward pressure of the leg movements ends, due to the resistance of the water on the calf and the restraint of the thigh muscles, the thigh and the calf form an angle of about 135-140 degrees, and the calf and the horizontal plane are about 40-45 degrees.

Backstroke leg skills:

When the downward pressure of the leg movements ends, due to the resistance of the water on the calf and the restraint of the thigh muscles, the thigh and the calf form an angle of about 135-140 degrees, and the calf and the horizontal plane are about 40-45 degrees.

At this time, the calf is bent to the maximum extent, and the calf and foot are larger than the water surface. The upward kicking action starts with the force and speed of the foot, and gradually increase to the maximum strength and speed.

When the calf moves upwards beyond the horizontal plane, the upward movement ends, and the knee joint is close to the water surface. Then the calf and foot end upwards in turn, which is a downward "whip" action.

The upward kicking action is completed by the thighs driving the calf and the calf driving the foot. In any case, try not to expose the knee joint or toes to the water surface. When kicking up, the toes should be rotated inwardly to increase the water area.

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Backstroke arm technology:

The backstroke arm stroke movement is the main factor driving the body forward.

A complete arm movement is divided into several stages such as inlet, holding water, pushing water, outflow and moving arms in the air. The palm forms an "S"-shaped route under the water due to inlet, holding water and pushing water.

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