Alternating stroke (swimming)

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Alternating stroke and alternating swimming type or alternating pull swimming type are names from swimming and are in contrast to the lang's stroke and the lang's stroke swimming types .

According to the technical execution of arm and leg work, crawl swimming and backstroke swimming , for example, are referred to as alternating stroke swimming types , breaststroke swimming , butterfly swimming and old German backstroke swimming , on the other hand, as so-called synchronized stroke swimming types .

execution

With an alternating stroke, the movements of the right and left limbs take place alternately and rhythmically alternating. The alternating lay of the legs is gentle on the knee joints without irritating the joints or menisci, as is the case with Lang lay, for example breaststroke swimming.

Freestyle swimming

When swimming in the crawl , first one arm dips into the water with the fingertips in front of the head, while only then does the elbow of the second arm leave the water with the hand at hip level. As the elbow is raised, the head turns to that side to breathe; the body thus performs a rolling movement around the longitudinal axis of the body. As the hand with a high elbow dips forward into the water and pulls itself forward in the water, the head spins back into the water and turns to the other side, where the elbow of the other arm leaves the water and performs the same movements as the previous arm. More advanced users practice so-called two or three breathing, that is, breathing is only done with every third or fourth circling breath, so that breathing in two breaths is always on the same side and breathing in three breaths alternately on both sides.

At the same time as the arm movements, the outstretched legs are continuously moved up and down in alternation. It is important to suppress the usual leg movement, such as when cycling or running, with flexion in the knee joint and to consciously stretch the legs in the knee joint. As a rule, a six-leg strike is performed, i.e. six leg strikes are performed per double-arm stroke.

Backstroke

The sequence of movements for backstroke swimming is similar . The arm pull is performed alternately by dipping the arms into the water above the head, moving them under water to the body (towards the legs) and back again above. In order to achieve the highest possible efficiency, the arm is not straight but bent underwater, as more strength is developed in the bent arm (so-called "forward elbow position").

As with the crawl, the leg kick consists of alternating up and down movements of the legs from the hips. A strong kick in the backstroke stabilizes the position in the water.

literature

  • Lilli Ahrendt: Swimming goes to school. Meyer & Meyer Verlag, 2008. ISBN 3898994147

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