PE12: Planes and Axes of Movement
The three planes of movement and their corresponding axes, with sporting examples of each pairing.
📐 What are Planes and Axes?
Plane of movement: An imaginary flat surface that divides the body into sections. Movement occurs ALONG or PARALLEL to a plane.
Axis of movement: An imaginary line around which the body or body part rotates. The axis is always PERPENDICULAR (at 90°) to the plane of movement.
Key Rule: Every plane has a corresponding axis that is at 90° to it. They always work in pairs:
Sagittal plane ↔ Transverse axis
Frontal plane ↔ Sagittal axis
Transverse plane ↔ Longitudinal axis
Sagittal plane ↔ Transverse axis
Frontal plane ↔ Sagittal axis
Transverse plane ↔ Longitudinal axis
↔️ The Sagittal Plane and Transverse Axis
Sagittal Plane: Divides the body into left and right halves. Movement in this plane involves flexion and extension - forward and backward movements.
Transverse Axis: Runs from left to right through the body. The body or body parts rotate around this axis when performing flexion and extension movements.
Movements in the sagittal plane include:
- Running and walking (legs swing forwards and backwards)
- Sit-ups (trunk flexion and extension)
- Bicep curls (elbow flexion and extension)
- Squats (knee and hip flexion and extension)
- Somersaults (the whole body rotates around the transverse axis)
Sporting Example - Somersault
A gymnast performing a forward somersault moves in the sagittal plane and rotates around the transverse axis. The body tucks and rotates forwards, moving through the plane that divides left from right, spinning around an axis running from left to right through the hips.
Sporting Example - Running
When running, the legs swing forwards (hip flexion) and backwards (hip extension) in the sagittal plane. The knee also flexes and extends in this plane. The arms also swing forwards and backwards, also in the sagittal plane.
↕️ The Frontal Plane and Sagittal Axis
Frontal Plane: Divides the body into front and back (anterior and posterior) halves. Movement in this plane involves abduction and adduction - side-to-side movements away from and towards the midline.
Sagittal Axis: Runs from front to back (anterior to posterior) through the body. The body or body parts rotate around this axis when performing abduction, adduction and lateral movements.
Movements in the frontal plane include:
- Star jumps (arms and legs abduct and adduct)
- Cartwheels (the whole body rotates around the sagittal axis)
- Lateral raises (arms abduct at the shoulder)
- Sidesteps in agility drills
- Handstand sideways shift
Sporting Example - Cartwheel
A gymnast performing a cartwheel moves in the frontal plane and rotates around the sagittal axis. The body rotates sideways, moving through the plane that divides front from back, spinning around an axis running from front to back through the body's centre.
Sporting Example - Star Jump
During a star jump, the arms abduct (move away from the midline) and adduct (return to the midline) in the frontal plane. The legs also abduct and adduct in this plane. The axis of rotation is the sagittal axis running from front to back.
🔄 The Transverse Plane and Longitudinal Axis
Transverse Plane: Divides the body into top and bottom (superior and inferior) halves. Movement in this plane involves rotation - twisting or spinning movements.
Longitudinal Axis: Runs from top to bottom (superior to inferior) through the body - from the head down through the spine. The body or body parts rotate around this axis when performing twisting or spinning movements.
Movements in the transverse plane include:
- Twisting the trunk (e.g. golf swing, discus throw)
- Pivoting on one foot in basketball or netball
- Spinning in ice skating or dancing
- Shaking the head "no" (rotation at the atlas-axis joint)
- Twist/spin in discus or shot put
Sporting Example - Discus Throw
A discus thrower rotates their entire body around the longitudinal axis in the transverse plane. The performer spins around an imaginary line running from their head through their spine to the ground, building up angular momentum before releasing the discus. This rotation occurs in the plane that divides the top half of the body from the bottom half.
Sporting Example - Golf Swing
During a golf drive, the trunk rotates in the transverse plane around the longitudinal axis. The golfer twists their upper body back (backswing) and then rotates through to face the target (follow-through). The axis of rotation runs vertically through the spine from head to feet.
📊 Complete Plane and Axis Summary
| Plane | Divides Body Into | Axis | Axis Direction | Types of Movement | Sporting Example |
|---|---|---|---|---|---|
| Sagittal | Left and right | Transverse | Left to right | Flexion and extension | Somersault; running; sit-up; squat |
| Frontal | Front and back | Sagittal | Front to back | Abduction and adduction | Cartwheel; star jump; lateral raise |
| Transverse | Top and bottom | Longitudinal | Top to bottom | Rotation | Discus spin; golf swing; pivot in basketball |
🧠 Memorisation Strategy
Plane-Axis Pairs (always match):
Sagittal plane → Transverse axis (ST - "Somersault/Tumble")
Frontal plane → Sagittal axis (FS - "Forward/Backward axis, Side-to-side movement")
Transverse plane → Longitudinal axis (TL - "Twist/Spin, Long axis")
Remember: The axis is ALWAYS at 90° to its plane.
Sagittal divides left/right → Transverse axis goes left/right ✓
Frontal divides front/back → Sagittal axis goes front/back ✓
Transverse divides top/bottom → Longitudinal axis goes top/bottom ✓
Sagittal plane → Transverse axis (ST - "Somersault/Tumble")
Frontal plane → Sagittal axis (FS - "Forward/Backward axis, Side-to-side movement")
Transverse plane → Longitudinal axis (TL - "Twist/Spin, Long axis")
Remember: The axis is ALWAYS at 90° to its plane.
Sagittal divides left/right → Transverse axis goes left/right ✓
Frontal divides front/back → Sagittal axis goes front/back ✓
Transverse divides top/bottom → Longitudinal axis goes top/bottom ✓
🔗 Combining Planes and Axes with Joint Movements
| Sporting Action | Joint | Movement | Plane | Axis |
|---|---|---|---|---|
| Running stride | Hip | Flexion/extension | Sagittal | Transverse |
| Star jump (arms out) | Shoulder | Abduction | Frontal | Sagittal |
| Discus wind-up | Trunk/hip | Rotation | Transverse | Longitudinal |
| Forward somersault | Whole body | Rotation (sagittal) | Sagittal | Transverse |
| Cartwheel | Whole body | Rotation (frontal) | Frontal | Sagittal |
| Full twist jump | Whole body | Rotation (transverse) | Transverse | Longitudinal |
❓ Practice Questions
Q1: Name the three planes of movement and describe how each divides the body.
Q2: Which plane and axis are used when performing a forward somersault?
Q3: Explain why a cartwheel occurs in the frontal plane around the sagittal axis.
Q4: A discus thrower rotates before releasing the implement. Name the plane and axis of this movement.
Q5: What types of movement occur in the sagittal plane? Give a sporting example.
Q6: Explain the relationship between a plane of movement and its corresponding axis.
✅ Answers
- Sagittal plane - divides the body into left and right halves. Frontal plane - divides the body into front and back halves. Transverse plane - divides the body into top and bottom halves.
- A forward somersault occurs in the sagittal plane (the body rotates forwards, dividing left from right) around the transverse axis (the body rotates around an axis running from left to right through the hips).
- A cartwheel occurs in the frontal plane because the body rotates sideways (dividing front from back) and around the sagittal axis (the body rotates around an axis running from front to back through the body's centre). The arms and legs abduct and adduct as the body turns sideways.
- The discus thrower rotates in the transverse plane (dividing top from bottom) around the longitudinal axis (the rotation occurs around a vertical axis running from head to feet through the spine).
- The sagittal plane involves flexion and extension movements (forward and backward). Example: during running, the legs flex and extend at the hip and knee in the sagittal plane; during a sit-up, the trunk flexes and extends.
- The axis of movement is always perpendicular (at 90°) to its corresponding plane. The axis is the imaginary line around which the body rotates, while the plane is the imaginary surface through which the movement occurs. For example, the transverse axis (left to right) is at 90° to the sagittal plane (which divides left from right).
🎯 Exam Tips
- Plane and axis always come as a pair - learn them together
- Sagittal = left/right split; Frontal = front/back split; Transverse = top/bottom split
- The axis is always at 90° to its plane
- Use the exact terminology: "sagittal plane" not "side plane"
- Somersault = sagittal/transverse; Cartwheel = frontal/sagittal; Twist = transverse/longitudinal
- Common exam question: identify the plane and axis for a given sporting action
- Remember: most everyday movements (walking, running, sitting) occur in the sagittal plane
📝 Exam Technique
PE Exam Tips — Planes and Axes of Movement:
1. For Planes and Axes of Movement questions, use subject-specific terminology precisely
2. Support every point with specific evidence or examples
3. Show balanced analysis — consider different perspectives before reaching a conclusion
4. Link your understanding of Planes and Axes of Movement to real-world contexts where possible
5. For longer answers, plan your response to address all parts of the question
1. For Planes and Axes of Movement questions, use subject-specific terminology precisely
2. Support every point with specific evidence or examples
3. Show balanced analysis — consider different perspectives before reaching a conclusion
4. Link your understanding of Planes and Axes of Movement to real-world contexts where possible
5. For longer answers, plan your response to address all parts of the question
⚠️ Common Errors
Watch Out!
Students often think second class levers are the most common in the body. Wrong: Second class levers are the most common in the body Correct: Third class levers are the most common in the human body (e.g. biceps curl, hamstring kick). They favour range of movement and speed over force.
Students often think the effort is always at the muscle. Wrong: The effort is always at the muscle Correct: The effort is where the muscle inserts on the bone, not where the muscle belly is. The insertion is usually close to the joint (fulcrum), creating a third class lever.
Students often think planes and axes are the same thing. Wrong: Planes and axes are the same thing Correct: A plane is a flat surface through which movement occurs (sagittal, frontal, transverse). An axis is a line around which the body rotates (transverse, sagittal, longitudinal). They always pair up differently.
✍️ Model Answer
Full-Mark Response
6 marks: Explain how planes and axes of movement affects sporting performance.
Planes and Axes of Movement has significant effects on sporting performance. [Key concept 1]: explain the mechanism with specific detail. [Key concept 2]: how this applies in a named sporting example. [Key concept 3]: the relationship between this topic and overall performance. A grade 9 answer uses precise anatomical/physiological terminology, specific sporting examples, and evaluates the relative importance of different factors.
Mark scheme: 2 marks per explained point with specific evidence, evaluation for top marks
📊 AO Deep Dive
Assessment Objective Analysis
GCSE PE tests four AOs: AO1 (Knowledge, 30%) — recall facts about Planes and Axes of Movement including definitions, classifications and specific examples; AO2 (Application, 30%) — apply knowledge to sporting contexts and training scenarios; AO3 (Analysis and Evaluation, 25%) — analyse data (graphs, tables), evaluate training methods or strategies, and justify recommendations; AO4 (Practical, 15%) — demonstrate relevant skills. For grade 9, use precise terminology, support every point with named sporting examples, and evaluate rather than just describe. The difference between grade 5 and grade 9 is the quality of application and depth of evaluation.
📝 Exam Questions by Topic
🎬 Video Resources
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