Static Stretching and Flexibility Training

This lesson covers static stretching and flexibility training as required by the AQA GCSE PE specification (3.1.3). You need to understand what static stretching is, how to perform it correctly, when to use it within a training session, and its advantages and disadvantages. You should also understand the difference between static and dynamic stretching.

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What Is Flexibility?

Flexibility is the range of movement possible at a joint. It is one of the health-related components of fitness and is determined by:

• The type of joint (e.g., ball-and-socket joints like the hip allow more movement than hinge joints like the knee).
• The length and elasticity of muscles and tendons surrounding the joint.
• The elasticity of ligaments at the joint.
• Age — flexibility tends to decrease with age.
• Gender — females tend to be more flexible than males.
• Temperature — warm muscles are more flexible than cold muscles.
• Training history — regular stretching improves flexibility over time.

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What Is Static Stretching?

Static stretching involves stretching a muscle to its furthest point and holding that position for a period of time, typically 30 seconds. The stretch is held without any bouncing or movement.

There are two types of static stretching:

1. Active Static Stretching

The performer stretches the muscle using their own strength to hold the position.

• Example: Standing on one leg and lifting the other leg in front to stretch the hamstrings, using the quadriceps to hold the leg in position.
• The performer is in control of the stretch at all times.

2. Passive Static Stretching

An external force is used to push the muscle further into the stretch. This could be:

• A partner gently pushing the limb further into the stretch.
• Body weight — for example, using the weight of the upper body to push down on a hamstring stretch.
• Equipment — using a stretching band or strap to hold a limb in the stretched position.

Passive stretching can achieve a greater range of motion than active stretching because the external force can push the muscle beyond what the performer could achieve alone. However, there is a greater risk of overstretching and injury if the external force is too great.

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How to Perform Static Stretching Correctly

Follow these guidelines to perform static stretches safely and effectively:

1. Warm up first — never stretch cold muscles. Perform 5–10 minutes of light aerobic activity (jogging, skipping) to increase blood flow and muscle temperature.
2. Move slowly into the stretch — do not jerk or bounce.
3. Stretch to the point of mild tension (often described as "comfortable discomfort") — you should feel the stretch but it should not be painful.
4. Hold the stretch for 30 seconds — research shows that holding for less than 15 seconds is less effective, while holding for longer than 60 seconds provides diminishing returns.
5. Breathe normally throughout the stretch — do not hold your breath.
6. Repeat each stretch 2–3 times on each side of the body.
7. Do not bounce — bouncing (ballistic stretching) can trigger the stretch reflex, causing the muscle to tighten rather than lengthen, increasing the risk of a muscle tear.
8. Stretch both sides of the body equally to avoid imbalances.

Common Static Stretches

Stretch	Target Muscle(s)	Description
Hamstring stretch	Hamstrings	Sit on the floor with legs straight, reach forward towards the toes and hold
Quadriceps stretch	Quadriceps	Stand on one leg, pull the other foot towards the buttocks and hold
Calf stretch	Gastrocnemius, soleus	Place hands against a wall, step one foot back and press the heel into the floor
Groin stretch (butterfly)	Adductors	Sit with the soles of the feet together, push knees gently towards the floor
Shoulder stretch	Deltoids	Pull one arm across the chest with the other arm and hold
Triceps stretch	Triceps	Reach one hand down between the shoulder blades, push the elbow gently with the other hand
Chest stretch	Pectorals	Hold a doorframe or wall with one hand and rotate the body away
Hip flexor stretch	Hip flexors	Kneel on one knee with the other foot forward, push hips forward

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When to Use Static Stretching

During the Cool-Down

Static stretching is most appropriate during the cool-down after exercise. At this point:

• Muscles are warm from the exercise session, making them more pliable and less likely to be injured.
• Static stretching helps to gradually reduce heart rate and return the body to its resting state.
• It helps to realign muscle fibres that may have become disorganised during exercise.
• It can help to reduce muscle soreness (DOMS — Delayed Onset Muscle Soreness) in the days following exercise.
• It maintains or improves long-term flexibility.

Before Exercise — The Debate

There is an ongoing debate about whether static stretching should be performed before exercise:

Argument For	Argument Against
Increases range of motion, which may help in some activities	Research suggests static stretching before exercise can temporarily reduce power and strength by up to 5–8%
Psychological benefit — performers feel "ready"	The stretch reflex is suppressed, which may reduce the muscle's ability to contract forcefully
May reduce injury risk in some activities requiring large ranges of motion	Dynamic stretching (stretching with movement) is now considered more appropriate before exercise

Exam Tip: The current consensus is that dynamic stretching (leg swings, arm circles, lunges with a twist) is more appropriate in the warm-up, while static stretching is more appropriate in the cool-down. If asked when to use static stretching, always recommend the cool-down.

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Avoiding Overstretching

Overstretching occurs when a muscle is stretched beyond its safe limit, which can cause:

• Muscle strains (small tears in the muscle fibres)
• Ligament sprains (overstretching of the ligaments at a joint)
• Reduced joint stability (if ligaments become permanently stretched)
• Pain and inflammation

To avoid overstretching:

• Never force a stretch — stop at the point of mild tension.
• Do not use excessive force during passive stretching.
• Do not compare your flexibility with others — everyone has different natural levels of flexibility.
• Ensure muscles are warm before stretching.
• Do not stretch through pain — pain is a warning signal that tissue damage may be occurring.
• Progress flexibility gradually over weeks and months, not in a single session.

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Static Stretching vs Dynamic Stretching

Understanding the difference between static and dynamic stretching is important for the exam:

Feature	Static Stretching	Dynamic Stretching
Movement	No movement — position is held	Involves controlled movement through the range of motion
Duration	Each stretch held for 30 seconds	Each movement performed 10–15 times
Intensity	Gentle, gradual	More vigorous, mimics sport-specific movements
Best used	During the cool-down	During the warm-up
Effect on power	Can temporarily reduce power	Maintains or improves power
Examples	Holding a hamstring stretch	Leg swings, walking lunges, arm circles
Risk	Overstretching if excessive force used	Lower risk if performed correctly

Examples of Dynamic Stretches

Dynamic Stretch	Target Muscle(s)	How to Perform
Leg swings (front to back)	Hamstrings, hip flexors	Stand on one leg, swing the other leg forward and backward in a controlled motion
Leg swings (side to side)	Adductors, abductors	Stand on one leg, swing the other leg across the body and then outward
Walking lunges	Quadriceps, hamstrings, glutes	Step forward into a lunge, then step through to the next lunge
Arm circles	Deltoids, rotator cuff	Extend arms to the side and make circles, gradually increasing the size
High knees	Hip flexors, quadriceps	Jog on the spot, lifting knees as high as possible
Heel flicks	Quadriceps, hamstrings	Jog on the spot, kicking heels towards the buttocks

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Flexibility Training Programmes

To improve flexibility over time, a structured flexibility training programme should be followed:

Frequency

• Stretch at least 3–5 times per week for improvements.
• Daily stretching produces the best results.

Intensity

• Stretch to the point of mild tension, not pain.
• As flexibility improves, the stretch will need to go further to achieve the same level of tension.

Time

• Hold each stretch for 30 seconds.
• Repeat each stretch 2–3 times.
• A full flexibility session should last 10–20 minutes.