What are the different components of fitness and why do they matter in sport?
Health-related and skill-related components of fitness, their definitions, and the sports and activities in which each is most important.
A focused answer to AQA GCSE PE on the components of fitness: the health-related and skill-related components, clear definitions of each, and the sporting activities in which they matter most.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this dot point is asking
AQA wants you to define every component of fitness, split them into health-related and skill-related groups, and link each one to the sports and activities where it matters most.
Health-related components
- Cardiovascular endurance: vital for distance runners, cyclists and swimmers.
- Muscular endurance: important in rowing and long-distance cycling.
- Muscular strength: important in weightlifting and rugby.
- Flexibility: important in gymnastics and diving.
- Body composition: affects performance in many sports, for example a marathon runner needs a low fat percentage.
Skill-related components
- Agility: important in netball, badminton and football.
- Balance: important in gymnastics and on a beam.
- Coordination: important in tennis and trampolining.
- Power: important in sprinting, jumping and throwing.
- Reaction time: important for a sprint start or a goalkeeper.
- Speed: important in sprinting and breakaway runs.
Choosing the right component for the activity
The single most common application question asks you to pick the component that matters most in a named role and justify it. The skill is to match the dominant physical demand to the right definition. A marathon runner is limited by how long the heart and lungs can supply oxygen, so cardiovascular endurance dominates. A powerlifter is limited by the single maximal force a muscle can produce, so muscular strength dominates. A games player such as a netballer or footballer needs a blend, but agility (changing direction under control to beat an opponent) is usually the decisive skill-related component. A gymnast on the beam depends on balance, keeping the centre of mass over a narrow base of support. Strong answers always pair the definition with a specific demand of the activity, rather than just listing the component.
It also helps to see how components combine. Power is the clearest example: it is the product of strength and speed, , so a shot putter who is strong but slow, or fast but weak, will not throw far. The best throwers maximise both. Similarly, a 400 m runner needs speed and muscular endurance together, because they must run fast while resisting the fatigue caused by lactic acid.
Worked example
Exam-style practice questions
Practice questions written in the style of AQA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
AQA 20182 marksDefine power and calculate the power output of a performer who applies a strength of 600 N at a speed of 4 m per second.Show worked answer →
A Paper 1 definition plus calculation. One mark for the definition, one for the value.
Power is strength multiplied by speed, . Substituting gives (in watts).
Markers reward both the worded definition and the correct product. Leaving out the multiplication or giving strength alone caps the mark.
AQA 20213 marksIdentify the most important skill-related component of fitness for a netball centre and justify your choice using two demands of the position.Show worked answer →
An AO2 application question rewarding a justified choice.
Award marks for naming agility (the ability to change direction quickly while keeping control), then linking it to two position demands: a centre constantly changes direction to lose a marker and to feed the attack, and must do so under control to avoid a footwork or contact penalty.
A weaker answer names a component with no justification; markers want the link to the specific demands of the role.
Related dot points
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Sources & how we know this
- AQA GCSE Physical Education (8582) specification — AQA (2016)