How do we describe the direction of a movement in three dimensions, and which plane and axis does a somersault use?
The three planes of movement (sagittal, frontal and transverse) and the three axes (transverse, sagittal and longitudinal), and the analysis of sporting movements such as somersaults, cartwheels and full twists using planes and axes.
A focused answer to OCR GCSE PE Component 01 on planes and axes of movement: the three planes (sagittal, frontal, transverse), the three axes (transverse, sagittal, longitudinal), how plane and axis pair up, and how to analyse somersaults, cartwheels and full twists.
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What this dot point is asking
OCR wants you to name the three planes and three axes of movement, match each plane to its axis, and analyse rotational sporting movements (somersault, cartwheel, full twist) by stating the plane and axis.
Planes of movement
- Sagittal plane: movements that go forward and backward, such as running, a biceps curl, a forward roll or a somersault.
- Frontal plane: movements that go side to side, such as a star jump, a side bend or a cartwheel.
- Transverse plane: rotational movements around the long axis of the body, such as a twist or a discus turn.
Axes of rotation
Matching plane to axis
The trick is that the axis is always perpendicular (at right angles) to the plane the movement happens in. So a somersault travels in the sagittal plane, but the body spins around the transverse axis that passes through the hips from side to side.
Planes and axes in physical activity
This topic lets you describe complex skills precisely. A diver performing a forward two-and-a-half somersault with a twist is analysed as rotation in the sagittal plane (transverse axis) for the somersaults and the transverse plane (longitudinal axis) for the twist. Coaches use this language to give accurate feedback, linking the analysis to the analysis and evaluation of performance task.
Exam-style practice questions
Practice questions written in the style of OCR exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
OCR 20182 marksA gymnast performs a forward somersault. Identify the plane of movement and the axis of rotation.Show worked answer →
A Component 01 movement-analysis item. Award one mark for the plane and one for the axis.
A forward somersault rotates the body forwards. The movement happens in the sagittal plane and rotates around the transverse axis (the axis that runs side to side through the hips).
Markers want both terms correct and matched. A common error is to give the right plane but the wrong axis: the sagittal plane always pairs with the transverse axis.
OCR 20214 marksComplete the plane and axis for each movement: (a) a cartwheel, (b) a full twist (360 degree turn) in the air. For each, name the plane and the axis.Show worked answer →
A 4-mark structured table item, one mark per correct plane and axis.
(a) A cartwheel moves sideways, rotating in the frontal plane around the sagittal axis (the front-to-back axis).
(b) A full twist (spinning around the long axis of the body, like an ice skater's spin) happens in the transverse plane around the longitudinal axis (the head-to-toe axis).
Markers reward each correct pairing. Learn the three pairings together: sagittal plane with transverse axis (somersault), frontal plane with sagittal axis (cartwheel), transverse plane with longitudinal axis (twist).
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Sources & how we know this
- OCR GCSE (9-1) Physical Education J587 specification — OCR (2016)