1.2.a. Components of fitness — OCR GCSE Physical Education

OCR J587 assesses ten components of fitness: cardiovascular endurance, muscular endurance, speed, strength, flexibility, agility, balance, coordination, power and reaction time. Learn each definition and a sporting example. Cardiovascular endurance keeps the whole body working for a long time, as in a marathon. Muscular endurance keeps one muscle group working repeatedly, as in a rowing race. Speed covers the body quickly, as in a sprint. Strength applies force against resistance, as in a rugby scrum. Flexibility moves a joint through its full range, as in a gymnastic split. Agility changes direction quickly, as in a slalom. Balance keeps the body stable, as on a beam. Coordination links body parts smoothly, as in a tennis serve. Power combines strength and speed, as in a jump. Reaction time responds quickly to a stimulus, as in a sprint start.

Cardiovascular endurance, also called stamina, is the ability of the heart and lungs to supply oxygen to the working muscles over a sustained period. A performer with good stamina keeps going through a whole match or long run without early fatigue. Apply it to activities where sustained whole-body effort matters: a 1500 m runner maintaining pace over three and three-quarter laps, a midfielder covering ground for ninety minutes, a cross-country skier or a rower over 2000 m. Suitable tests include the Cooper 12 minute run/walk test, where the performer covers as much distance as possible in twelve minutes, and the multi-stage fitness test, a progressive shuttle run in which the performer keeps pace with bleeps until unable to continue. Both estimate aerobic capacity indirectly.

Muscular endurance is the ability of a muscle or group of muscles to repeatedly contract over a period of time without tiring. It differs from cardiovascular endurance because the focus is on the muscles working repeatedly rather than the heart and lungs supplying oxygen to the whole body. Apply it where repeated contractions are needed: a rower making many strokes over 2000 m, a cyclist turning the pedals through a long stage, a hockey player repeatedly dribbling, or a swimmer completing many lengths. Suitable tests include the press-up test, counting correct press-ups completed without rest, and the sit-up test, counting sit-ups completed in a set time or to exhaustion. Both count repetitions to indicate endurance of the working muscles.

Speed is the component of fitness that describes how quickly the body, or a body part, moves from one point to another, so it is about rate of movement rather than stamina or force. A learner should be able to define it, then apply it: a 100 m sprinter accelerating out of the blocks, a winger sprinting to reach a through ball, or a badminton player moving quickly to a drop shot all depend heavily on speed. To test speed, the 30 m sprint test is used: the performer runs a measured 30 m as fast as possible and the time taken is recorded, with a shorter time showing better speed. The test is short, simple and repeatable, but it measures acceleration and short-distance speed rather than speed maintained over a long distance.

Strength is the component of fitness that describes the amount of force a muscle or group of muscles can exert against a resistance. A learner should define it, then apply it: a rugby forward driving in a scrum, a gymnast holding a support on the rings, or a shot putter pushing the implement away all depend heavily on strength. Two suitable tests are named. The grip strength dynamometer test measures the force of the hand and forearm as the performer squeezes the device, giving a reading of force. The 1 Repetition Maximum (RM) test finds the heaviest weight a performer can lift once with correct technique, so a higher 1RM indicates greater strength. The 1RM test needs careful technique and safe spotting, while the dynamometer is quick and specific to grip.

Power is the ability to combine strength with speed, producing a strong movement as quickly as possible. A useful working definition is the product of force and velocity, so a powerful performer applies a large force in a short time. Apply it to practical examples: a sprinter driving out of the blocks, a long jumper taking off, a shot putter releasing the implement, a volleyball player spiking, or a boxer throwing a fast, forceful punch. These actions are particularly important where explosive effort decides success. Suitable tests include the standing jump and the vertical jump, which measure how far or how high a performer can propel themselves from a standing position.

Flexibility is the range of movement possible at a joint. A performer with good flexibility can move a joint through a wide range without discomfort, which supports actions such as a gymnast's split, a hurdler clearing the barrier, a swimmer's streamlined reach or a dancer's extension. Apply flexibility to these practical examples by explaining that a greater range of movement allows the required position to be reached. The sit and reach test is a suitable measure: the performer sits with legs straight and reaches forward as far as possible, and the distance reached indicates the flexibility of the lower back and hamstrings.

Agility is the ability to change the body's position and direction quickly while maintaining control, so a performer can accelerate, decelerate and turn without losing balance. It matters most where space is tight and opponents or the ball demand rapid redirection: a netball centre dodging to receive, a badminton player recovering to base, a rugby winger sidestepping a tackle, a goalkeeper shifting across goal. The Illinois agility test measures this component: the performer starts face down, runs a set slalom course around cones over a measured distance, turns and returns, and the time taken is recorded. Faster times indicate better agility. A multiple-choice question may ask for the definition, match a sporting example to agility, or identify the Illinois test as the suitable measure rather than a test of speed, power or balance.

Balance is the ability to keep the body's centre of mass over its base of support, whether held still (static balance) or maintained while moving (dynamic balance). It matters wherever a performer must stay stable and controlled: a gymnast holding a handstand, a dancer freezing on one leg, a cyclist cornering, a rugby player staying upright in a tackle, a shooter steadying before release. The stork stand test measures balance: the performer stands on one leg, places the other foot against the inside of the supporting knee, hands on hips, and holds the position without the raised foot touching the ground or the supporting foot moving, with the time held recorded. A multiple-choice question may ask for the definition, match a sporting example to balance, or identify the stork stand as the suitable test rather than a test of agility, power or coordination.

Co-ordination is the ability to use two or more body parts together smoothly and accurately to produce a controlled movement. It links the senses and the muscles: the eyes judge a ball's flight while the hands move to meet it. It matters most where several limbs must work in time, such as a tennis player adjusting the racket face while stepping into a shot, a gymnast linking a leap into a landing, or a goalkeeper moving hands and feet together. The wall throw test measures it: the performer stands a set distance from a wall and throws a ball, catching it on the rebound, counting successful catches in a fixed time or from a fixed number of throws. A higher count of clean catches indicates better hand-eye co-ordination.

Reaction time is the time taken to respond to a stimulus, such as a starter's signal or an opponent's sudden movement. It is the delay between sensing something and beginning to move, so it matters most where a fast response decides the outcome: a sprinter leaving the blocks on the gun, a goalkeeper diving as a shot is struck, or a batsman reacting to a bouncer. The reaction time ruler test measures it: a partner holds a ruler vertically and releases it without warning, and the performer catches it as quickly as possible. The distance the ruler falls before it is caught is read off the scale, and a shorter distance indicates a faster reaction time.

This criterion asks you to gather fitness data and then put it to work. First select the components of fitness named in 1.2.a that matter for a chosen activity, such as cardiovascular endurance, muscular endurance, muscular strength, flexibility, speed, agility, balance, coordination, power and reaction time. Then choose a suitable test for each component, for example a multi-stage fitness test for cardiovascular endurance or a sit-and-reach test for flexibility, and record each result accurately with the performer's name, the date and the unit. Next interpret the scores: compare them with normative tables or with the performer's earlier results, identify strengths and weaknesses, and explain how the findings would shape a training programme. Assessment rewards a clear method, correct matching of test to component, sound recording and reasoned use of the data, not a list of tests alone.