Balance beam 4 – Half turn on one leg

From the preparatory position, we start the movement with the arms passing upwards above the head while rising onto standing leg toe. The swinging leg transitions into a free position. Just before completing the turn, the arms pass out and standing leg lands from toe to full foot. The second leg is stretched, then the gymnast steps on it and transfers her weight on it.

Half turn on one leg
View of the practitioner

The body rotation is given by the moments of forces of the arms and the swinging leg. For the turn to be stable, the centre of gravity needs to remain above the support surface. The law of conservation of momentum applies here. As the segments approach the vertical axis of the body, around which the turn is performed, the angular velocity of the turn increases. When completing the turn, the rotation is slowed down by outstretching the arms and extending the lower leg.

Half turn on one leg: Biomechanics
  • Bent standing leg.
  • Delayed rotation of the leg in relation to the trunk.
  • The turn is not completed with the forward step.
  • Physical preparation 1

    We perform a single foot stand and stand on toes.

    Half turn on one leg: Physical preparation 1
  • Physical preparation 2

    We perform rises onto toe with or without support, on both legs and on one leg to strengthen the ankle.

    Half turn on one leg: Physical preparation 2
  • Drill 1

    Practice separately the first phase of the element on the line on the ground.

    Half turn on one leg: Drill 1
  • Drill 2

    Perform the turn on one foot on the line on the ground, or on a low wider beam - "trainer".

    Half turn on one leg: Drill 2
  • Drill 3

    On the balance beam, first practice the first phase of the element separately, then the whole turn.

    Half turn on one leg: Drill 3