The method of swimming breaststroke on the back is similar to the inverted breaststroke on the chest, the arms also move forward symmetrically at the same time, and the legs make a simultaneous push. Although the breaststroke on the back is not used in competitions, it is of great practical importance: you can use this style when providing assistance on the water, and during long swims this style can be used for relaxation.
Backstroke swimming technique

The cycle of movements in breaststroke swimming on the back consists of one symmetrical and simultaneous movement of the arms, movement of the legs and one inhalation and exhalation through the mouth.

body position

Starting position – horizontally at the surface of the water. Legs joined together are extended. Hands are straightened behind the head at shoulder width. The palms are turned up. The face is above the water, the chin is close to the chest, the swimmer, as it were, looks at his stomach.

Hand movement

The cycle of hand movement can be divided into phases:

Sliding in the starting position. Hands directly behind the head at shoulder width, palms up. This phase is especially pronounced during slow swimming.
The main phase is the stroke. The hands with clenched fingers bend, the hands, moving with acceleration to the sides and slightly downward along the arc, simultaneously perform a stroke at a depth of 25 cm. During the stroke, the hands gradually unbend, completing the stroke straightened at the hips. When performing a stroke, the palms must constantly maintain support on the water.
Movement over water or carrying. After the end of the stroke, the hands come out of the water and sweep through the air to their original position. During the carrying, the hands turn outward, the muscles are slightly tense.
Leg movement

Leg movement также можно разделить на фазы:

Sliding in the starting position. The muscles are relaxed.
Preparatory phase. The legs are bent at the knees and the hip joint, the heels are bred to the sides shoulder-width apart. The feet descend and, approaching the pelvis with the heels, are parted somewhat wider than the shoulders. The phase ends when the torso and thighs form an angle of 160-170°, and the legs and thighs form an angle of 80-90°.
Push. At the beginning, the point of the foot is turned to the sides and taken over, the shins are turned and spread even more to the sides. Then the legs and feet quickly move in arcs from bottom to top towards each other, while the legs unbend and come together. The push is performed by a simultaneous symmetrical movement with acceleration at the end.
Breath

inhale produced by mouth during passage. Exhale while rowing and sliding.

Coordination of arm, leg and breath movements:

From the starting position, the hands perform a stroke, an exhalation is made, the legs are extended and lie freely at the surface of the water.
Hands are taken out of the water and begin to move to the starting position, a breath is taken. The legs are bent, spread apart and prepared for the push.
Hands complete the carry through the air, returning to their original position, and descend into the water. The legs perform a push and also return to their original position, an exhalation is made.