Axes of Movement: Sagittal, Frontal, Transverse

    OCR
    GCSE

    Candidates must define axes of movement as imaginary lines around which body rotation occurs, distinct from planes of movement which divide the body. Mastery requires the precise pairing of axes with their orthogonal planes: the Transverse axis (side-to-side) facilitating flexion/extension in the Sagittal plane; the Sagittal axis (front-to-back) facilitating abduction/adduction in the Frontal plane; and the Vertical (Longitudinal) axis facilitating rotation in the Transverse plane. Responses must apply these mechanical principles to analyse complex sporting techniques, such as the somersault or pirouette.

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    Objectives
    3
    Exam Tips
    4
    Pitfalls
    3
    Key Terms
    4
    Mark Points

    What You Need to Demonstrate

    Key skills and knowledge for this topic

    • Award 1 mark (AO1) for defining the Sagittal axis as the line passing horizontally from front to back (anterior to posterior).
    • Credit responses (AO2) that correctly identify the Frontal axis for movements occurring in the Sagittal plane, such as a forward roll or running action.
    • Award marks for linking the Vertical axis to rotational movements in the Transverse plane, such as a discus throw or ice skating spin.
    • For AO3 analysis, candidates must justify the axis choice by describing the rotation around the imaginary line, not just stating the direction of movement.

    Example Examiner Feedback

    Real feedback patterns examiners use when marking

    • "You have identified the plane correctly, but the axis is the line *around* which rotation occurs. Apply the 'opposite' rule for Sagittal/Frontal pairings."
    • "Use the specific term 'Vertical axis' for twisting movements; 'Transverse axis' is not credited in this specification."
    • "To improve your analysis, explain *why* the Frontal axis allows for flexion and extension at the knee during the sprint."
    • "Ensure you define the orientation of the axis (e.g., 'passes horizontally from side to side') to secure the AO1 knowledge marks."

    Marking Points

    Key points examiners look for in your answers

    • Award 1 mark (AO1) for defining the Sagittal axis as the line passing horizontally from front to back (anterior to posterior).
    • Credit responses (AO2) that correctly identify the Frontal axis for movements occurring in the Sagittal plane, such as a forward roll or running action.
    • Award marks for linking the Vertical axis to rotational movements in the Transverse plane, such as a discus throw or ice skating spin.
    • For AO3 analysis, candidates must justify the axis choice by describing the rotation around the imaginary line, not just stating the direction of movement.

    Examiner Tips

    Expert advice for maximising your marks

    • 💡Memorise the pairing rule: Sagittal Plane/Frontal Axis, Frontal Plane/Sagittal Axis, Transverse Plane/Vertical Axis.
    • 💡In movement analysis questions, visualise the axis as a metal pole piercing the joint; the body part must rotate *around* this pole.
    • 💡When analysing a cartwheel, explicitly state it occurs in the Frontal plane around the Sagittal axis to secure full AO2 marks.

    Common Mistakes

    Pitfalls to avoid in your exam answers

    • Confusing the Frontal axis (side-to-side) with the Sagittal axis (front-to-back) due to misunderstanding the plane/axis relationship.
    • Incorrectly labelling the vertical line of rotation as a 'Transverse axis'; OCR J587 strictly requires the term 'Vertical axis'.
    • Failing to identify that flexion and extension actions (e.g., kicking a ball) occur around a Frontal axis.
    • Describing the movement of the limb rather than the stationary imaginary line around which the joint rotates.

    Key Terminology

    Essential terms to know

    Orthogonal Plane-Axis Relationships
    Rotational Biomechanics
    Movement Classification & Analysis

    Likely Command Words

    How questions on this topic are typically asked

    Identify
    Define
    Explain
    Analyse
    Justify

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