Physical Education 0413 | Paper 1 Mock 01 | Theory

Muscle at the front of the upper arm

The muscle at the front of the upper arm responsible for bending (flexing) the elbow is the biceps (biceps brachii). When the biceps contracts, it pulls the forearm toward the upper arm, decreasing the angle at the elbow joint. This is the primary muscle used in movements such as lifting, pulling, and carrying. [1]

(a) The tissue that connects muscle to bone at a synovial joint is a tendon. Tendons are strong, fibrous cords of connective tissue that transmit the force of muscle contraction to the skeleton, producing movement. [1]

(b) Three components of a synovial joint with their functions:

1. Cartilage covers the ends of the bones where they meet. It absorbs shock during impact and reduces friction, allowing smooth, pain-free movement. [1 + 1]
2. Synovial fluid fills the space inside the joint capsule. It lubricates the joint surfaces so they glide over each other easily, and it also nourishes the cartilage. [1 + 1]
3. Ligaments are tough bands of tissue that connect bone to bone across the joint. They stabilise the joint and prevent excessive or abnormal movement that could cause dislocation. [1 + 1]

Other acceptable components include the synovial membrane (produces synovial fluid) and the joint capsule (encloses the joint and contains the fluid).

(c) Two reasons why a long-distance runner's knee joint may change over many years of training:

1. Cartilage may wear down due to the repeated impact of running. Over time, this reduces the cushioning between the bones and can lead to pain and stiffness. [1]
2. Less synovial fluid may be produced as the synovial membrane ages or becomes less active, reducing lubrication and increasing friction within the joint. [1]

Agonist during elbow flexion

The muscle that acts as the agonist (prime mover) when the arm bends at the elbow is the biceps. [1]

The biceps is located on the front of the upper arm. When it contracts (shortens), it pulls the forearm upward, producing flexion at the elbow joint. During this action, the triceps on the back of the upper arm acts as the antagonist, relaxing to allow the movement to occur.

An athlete might use beta blockers to reduce heart rate, calm nerves, and steady the hands. Beta blockers block the effects of adrenaline, which lowers anxiety and prevents trembling, helping the performer remain composed under pressure. [1]

A sport where beta blockers might be used is archery. In archery, precision and a steady hand are essential, and even a small tremor can cause the arrow to miss the target. By reducing the physical symptoms of anxiety, beta blockers give the performer an unfair advantage in accuracy-dependent events. [1] Other acceptable sports include shooting, snooker, darts, or golf.

Answer: Any one valid barrier, for example: lack of adapted facilities such as wheelchair-accessible changing rooms or playing surfaces. [1]

People with physical disabilities often face practical obstacles that prevent participation. These include a shortage of venues designed for wheelchair users, limited availability of specialist coaching staff trained in adaptive sport, difficulty accessing transport to reach facilities, or the high cost of equipment modified for specific needs. Each of these prevents equal opportunity to take part.

(a) Type of joint at the elbow

The elbow is a hinge joint. Like a door hinge, it allows movement in one plane only, permitting flexion (bending) and extension (straightening) of the forearm. [1]

(b) Movement when the forearm moves upward

When the forearm moves upward toward the upper arm, the angle at the elbow decreases. This movement is flexion. [1]

(c) Sporting example of elbow flexion

A valid example is performing a bicep curl in weightlifting. During the lifting phase, the forearm flexes at the elbow to raise the weight toward the shoulder. The biceps muscle contracts to produce this movement, and the ability to flex powerfully at the elbow is essential for controlling and lifting the load. [1+1]

Other acceptable examples include the pulling phase in rowing (pulling the oar handle toward the body), a boxing guard (keeping the arms bent to protect the head), or the upward pull in rock climbing.

Answer:

1. Offer free or reduced-cost taster sessions so that young people can try activities without a financial commitment. This removes the cost barrier that often discourages families from signing up. [1]
2. Advertise through local schools and social media platforms that young people regularly use. Reaching them where they already spend time increases awareness and makes the club feel accessible. [1]

Other acceptable responses include providing qualified beginner coaching, organising junior competitions, arranging transport to training, or offering flexible session times that fit around school schedules.

(a) Inclusion in the context of physical activity means ensuring that people of all abilities, backgrounds and characteristics are able to take part [1] without facing discrimination or unfair barriers to access [1].

(b) Two cultural factors that may affect a performer's access to sport:

1. Religious dress codes - some religions require modest clothing, which may conflict with standard sports kit or make participation uncomfortable. [1]
2. Cultural attitudes towards mixed-gender sport - in some cultures, males and females exercising together is discouraged, limiting opportunities where only mixed sessions are available. [1]

(c) A school could adapt its physical education programme by:

• Offering single-sex sessions for students whose cultural or religious background makes mixed-gender sport inappropriate. [1]
• Providing culturally appropriate kit and private changing facilities so that students feel comfortable participating. [1]
• Consulting with community leaders or parents from different backgrounds to understand which activities are welcomed and which present difficulties. [1]
• Training staff in cultural awareness so that teachers can be sensitive to different needs and avoid inadvertently excluding students. [1]

(d) Three strategies for a community leisure centre to attract more elderly people:

1. Offer daytime classes - elderly people are often free during the day when working-age adults are at work, so scheduling classes in the morning or early afternoon makes attendance more convenient. [1+1]
2. Provide low-impact activities such as gentle yoga, aqua aerobics or walking groups - these are easier on joints and muscles, reducing the risk of injury for older participants. [1+1]
3. Offer discounted or free memberships for pensioners - many elderly people live on fixed incomes, so reducing the cost barrier makes participation financially possible. [1+1]

(e) Government initiatives can improve access to sport in deprived areas in several ways:

• Funding the construction of public sports facilities such as multi-use games areas or outdoor gyms in parks, providing free-to-use equipment in areas where commercial gyms are unaffordable. [1+1]
• Subsidising club memberships for low-income families, for example through free swimming schemes run by local councils. [1+1]
• Investing in school sport programmes with qualified coaches, ensuring children in deprived areas have access to structured physical activity regardless of family income. [1]
• Providing grants to community sports organisations that deliver coaching and competitions in underserved neighbourhoods. [1]

Answer:

1. Increases the popularity and awareness of the sport - when a sport is shown on television, it reaches a much larger audience than could attend live events. This exposure introduces new people to the sport and builds a fan base. [1]
2. Attracts sponsors and generates income - broadcasters pay for the rights to show popular sports, and companies pay to advertise during coverage. This money funds prize money, facilities, coaching and grassroots development. [1]

Other valid responses include: provides role models that encourage participation (viewers see successful athletes and are inspired to try the sport themselves), and educates viewers about rules, tactics and techniques, deepening their appreciation and engagement.

(a) Health is a state of complete physical, mental and social well-being, not merely the absence of disease or illness. [1] This definition, used in physical education, emphasises that being healthy goes beyond simply not being sick - it includes positive functioning across all three dimensions.

(b) Regular exercise reduces the risk of coronary heart disease by:

• Strengthening the heart muscle so it pumps blood more efficiently with each beat. [1]
• Lowering resting heart rate and blood pressure, which reduces the strain on artery walls and decreases the chance of damage that leads to plaque build-up. [1]
• Reducing cholesterol levels in the blood by increasing high-density lipoproteins (HDL, the "good" cholesterol) that help clear fatty deposits from arteries. [1]

(c) Benefits of taking part in a team sport:

Social benefits:

1. Meeting new people and building friendships through regular training and competition, which provides a supportive social network. [1]
2. Learning teamwork and cooperation - working towards a common goal develops communication skills and the ability to rely on others. [1]

Mental benefits:

1. Reducing stress through physical activity, which triggers the release of endorphins that improve mood and relieve tension. [1]
2. Improving self-confidence through personal achievement, mastering new skills and receiving positive feedback from teammates and coaches. [1]

(d) A suggested fitness plan for an office worker with a sedentary lifestyle:

• Include a mix of activities across the week to target different aspects of fitness and prevent boredom. [1]
• Aerobic exercise such as jogging, cycling or swimming 3 times per week to improve cardiovascular endurance. This is justified because prolonged sitting weakens the heart and circulatory system. [1+1]
• Strength training twice per week using bodyweight exercises or resistance bands to counter muscle loss that results from hours of sitting. [1]
• Flexibility exercises such as stretching or yoga to improve posture and counteract the stiffness caused by sitting at a desk all day. [1]
• Active commuting such as walking or cycling to work, which builds activity into the daily routine without requiring extra time. [1]
• Gradual progression - starting at a manageable intensity and increasing gradually to avoid injury, since the person is not currently active. [1]

(a) The completed table comparing slow-twitch and fast-twitch muscle fibres:

[1 mark per correct cell, 4 marks total]

Why these differences matter:

• Slow-twitch fibres are designed for sustained, low-intensity activity. They have a rich blood supply and many mitochondria, allowing them to produce energy aerobically for long periods without fatiguing. This makes them ideal for endurance events.
• Fast-twitch (Type IIb) fibres contract rapidly and generate high force, but they rely on anaerobic energy systems and fatigue quickly. They are suited to explosive, short-duration activities where maximum power is needed.

Most people have a roughly equal mix of both fibre types, but the proportion can vary. Elite sprinters tend to have a higher percentage of fast-twitch fibres, while elite endurance athletes tend to have more slow-twitch fibres.

Movement at the elbow during an overarm throw

When a performer throws a ball overarm, the forearm straightens as the arm moves forward to release the ball. This straightening action is extension at the elbow joint. Extension increases the angle between the upper arm (humerus) and the forearm (radius and ulna), moving from a bent position to a straighter one. [1]

(a) Two short-term effects of exercise on the respiratory system:

1. Breathing rate increases to take in more oxygen and expel more carbon dioxide, meeting the heightened metabolic demands of the working muscles. [1]
2. Depth of breathing increases (tidal volume rises), allowing a greater volume of air to be exchanged with each breath and improving the efficiency of gas exchange at the alveoli. [1]

(b) Redistribution of blood flow means that during exercise, blood is directed away from non-essential organs such as the digestive system and kidneys. [1] Instead, it is redirected to the working muscles, where it is needed to supply oxygen and glucose for energy production and to remove waste products such as carbon dioxide and lactic acid. [1] This process is controlled by vasoconstriction (narrowing of blood vessels to non-essential areas) and vasodilation (widening of blood vessels to active muscles).

(c) The body sweats during vigorous physical activity to cool down and regulate body temperature. As sweat evaporates from the skin surface, it removes heat, preventing the body from overheating. [1]

(d) Muscle fatigue causes the muscles to feel tired and heavy, and the force they can produce is reduced. [1] This leads to a decline in performance: the performer may slow down, lose coordination, or find it harder to maintain correct technique. [1] One way to reduce the impact of muscle fatigue is to maintain proper hydration throughout the activity, as dehydration accelerates fatigue by impairing the delivery of nutrients and removal of waste products. [1] Other valid suggestions include taking regular rest periods or ensuring adequate nutrition before and during exercise.

(a) Economic benefits of hosting the Olympic Games

Staging a global event brings significant economic activity to the host country:

Benefit 1: Increased tourism. Hundreds of thousands of international visitors attend the Games and spend money in hotels, restaurants, shops, and on transport. This boosts revenue for local businesses and generates tax income for the host city. [1+1]

Benefit 2: Job creation. The construction of stadiums, athletes' villages, and transport links creates thousands of jobs in the years leading up to the event. During the Games themselves, additional employment is generated in hospitality, security, and event management. [1+1]

Other acceptable benefits: increased investment from international businesses and sponsors; long-term economic boost from improved infrastructure. [max 4]

(b) Possible disadvantages for the host country

• High cost and overspending: Building venues and infrastructure often exceeds the original budget, leaving the host country or city with significant debt. [1]
• Underused venues: After the event, purpose-built stadiums and arenas may have no regular use, becoming costly to maintain - sometimes called 'white elephants'. [1]

Other acceptable answers: displacement of local residents during construction; increased security costs; disruption to daily life during the event. [max 2]