📚 Year 11 Cambridge Physical Education: Core Knowledge Review | Year 11 Cambridge 体育：核心知识点梳理
This article summarises the essential knowledge areas for Year 11 Cambridge IGCSE Physical Education. It covers anatomy, physiology, training principles, skill acquisition, psychology and socio-cultural influences, helping you to consolidate your understanding and prepare effectively for the examination.
本文梳理了 Year 11 Cambridge IGCSE 体育课程的核心知识点，涵盖解剖学、生理学、训练原则、技能习得、运动心理学及社会文化影响等内容，帮助你巩固理解、高效备考。
1. Functions and Structure of the Skeleton | 骨骼的功能与结构
The human skeleton provides five key functions: support for the body, protection of vital organs, movement by providing attachment points for muscles, storage of minerals such as calcium, and blood cell production in the bone marrow.
人体骨骼有五大功能：支撑身体、保护重要器官、通过为肌肉提供附着点实现运动、储存钙等矿物质，以及在骨髓中生成血细胞。
Long bones, for example the femur and humerus, act as levers during movement; flat bones such as the cranium and ribs offer extensive protection; short bones like the carpals allow fine controlled movements; irregular bones, including the vertebrae, provide both protection and support.
长骨（如股骨和肱骨）在运动中起杠杆作用；扁骨（如颅骨和肋骨）提供大面积保护；短骨（如腕骨）便于精细控制运动；不规则骨（如椎骨）兼具保护与支撑功能。
Synovial joints are freely movable and are classified by their structure and the movements they permit. Hinge joints (elbow, knee) allow flexion and extension, while ball-and-socket joints (shoulder, hip) enable flexion, extension, abduction, adduction, rotation and circumduction.
滑液关节可自由活动，依据结构和允许的运动分类。铰链关节（肘、膝）允许屈和伸，球窝关节（肩、髋）可进行屈、伸、外展、内收、旋转和环转。
2. Muscular System and Movement | 肌肉系统与运动
Voluntary skeletal muscles are responsible for movement. Key muscle groups include the deltoids, pectorals, biceps, triceps, abdominals, quadriceps, hamstrings, gluteals and gastrocnemius. Understanding their location and action is fundamental for analysing sporting movements.
随意控制的骨骼肌负责运动。主要肌群包括三角肌、胸肌、肱二头肌、肱三头肌、腹肌、股四头肌、腘绳肌、臀肌和腓肠肌。掌握其位置与功能是分析运动动作的基础。
Muscles work in antagonistic pairs to produce coordinated movement. During elbow flexion, the biceps contracts as the agonist, while the triceps relaxes as the antagonist. During extension, the roles reverse. The muscle that assists the agonist is called the synergist.
肌肉以拮抗对的形式协同工作。肘关节屈曲时，肱二头肌作为主动肌收缩，肱三头肌作为拮抗肌放松；伸展时角色互换。协助主动肌的肌肉称为协同肌。
Isotonic contractions involve a change in muscle length and are subdivided into concentric (muscle shortens) and eccentric (muscle lengthens under tension). Isometric contraction occurs when tension develops but the muscle length remains unchanged, such as holding a plank position.
等张收缩涉及肌肉长度变化，分为向心收缩（肌肉缩短）和离心收缩（张力下肌肉拉长）。等长收缩时肌肉产生张力但长度不变，例如平板支撑。
3. Respiratory System and Exercise | 呼吸系统与运动
The respiratory system brings oxygen into the body and removes carbon dioxide. During inspiration, the intercostal muscles contract lifting the ribs, and the diaphragm flattens, increasing the volume of the thoracic cavity and drawing air into the lungs.
呼吸系统将氧气带入体内并排出二氧化碳。吸气时，肋间肌收缩使肋骨上提，膈肌变平，胸腔容积增大，空气被吸入肺部。
Gaseous exchange occurs in the alveoli, where oxygen diffuses into the surrounding capillaries and carbon dioxide diffuses out. The alveoli have thin walls, a large surface area and a rich blood supply, making diffusion efficient.
气体交换在肺泡中进行，氧气扩散至周围毛细血管，二氧化碳则扩散出来。肺泡壁薄、表面积大且血供丰富，使扩散高效。
Tidal volume is the amount of air inhaled or exhaled per normal breath. Vital capacity is the maximum amount of air that can be exhaled after a maximal inhalation. Minute ventilation (VE) = tidal volume × breathing rate, and increases significantly during exercise to meet oxygen demand.
潮气量是每次正常呼吸吸入或呼出的气体量。肺活量是最大吸气后能呼出的最大气体量。每分通气量(VE) = 潮气量 × 呼吸频率，运动时为满足氧气需求会显著增大。
4. Circulatory System in Physical Activity | 体育活动中的循环系统
The circulatory system comprises the heart, blood vessels and blood. The heart has four chambers: right atrium, right ventricle, left atrium and left ventricle. The septum separates oxygenated and deoxygenated blood.
循环系统由心脏、血管和血液组成。心脏有四个腔室：右心房、右心室、左心房和左心室。室间隔将含氧血与缺氧血分隔开。
During exercise, heart rate increases to deliver more oxygen to working muscles. Stroke volume, the amount of blood pumped per beat, also rises, leading to a higher cardiac output (Q = HR × SV). Regular training can lower resting heart rate and increase stroke volume.
运动时心率加快，为工作肌肉输送更多氧气。每搏输出量（每搏射血量）也增大，从而提高心输出量(Q = 心率 × 每搏输出量)。规律训练可降低静息心率并增加每搏输出量。
Arteries carry blood away from the heart at high pressure and have thick muscular walls. Veins carry blood towards the heart and contain valves to prevent backflow. Capillaries are one-cell thick to facilitate exchange of nutrients, gases and wastes at the tissues.
动脉将血液从心脏导出，压力高，管壁厚而肌肉发达。静脉将血液输回心脏，内有瓣膜防止回流。毛细血管仅一层细胞厚，便于在组织中进行营养物质、气体和废物的交换。
5. Energy Systems and ATP Production | 能量系统与ATP生成
Adenosine triphosphate (ATP) is the immediate energy currency for muscle contraction. The ATP-CP (phosphocreatine) system provides energy for short, high-intensity activities lasting up to 10 seconds, such as a 100 m sprint. No oxygen is required, and no fatiguing by-products are formed.
三磷酸腺苷(ATP)是肌肉收缩的直接能量来源。ATP-CP（磷酸肌酸）系统为持续10秒以内的短时高强度活动（如100米冲刺）提供能量，不需要氧气且不产生致疲劳副产物。
The lactic acid (anaerobic glycolysis) system dominates in events lasting up to 90 seconds, for example a 400 m run. It breaks down glucose without oxygen to resynthesise ATP, but produces lactic acid, which can inhibit muscle contraction and cause fatigue.
乳酸（无氧糖酵解）系统在持续约90秒的运动（如400米跑）中占主导。它在无氧条件下分解葡萄糖以再合成ATP，但产生乳酸，会抑制肌肉收缩并引起疲劳。
The aerobic system uses oxygen to break down carbohydrates and fats, producing large amounts of ATP for endurance activities. It yields carbon dioxide and water as by-products, and can sustain energy production for hours. The recovery process removes lactic acid and replenishes CP and glycogen stores.
有氧系统利用氧气分解碳水化合物和脂肪，为耐力活动产生大量ATP。副产物为二氧化碳和水，可维持数小时的能量供应。恢复过程清除乳酸，补充CP和糖原储备。
6. Health, Fitness and Components of Fitness | 健康、体适能与体适能要素
Health is a state of complete physical, mental and social well-being, not merely the absence of disease. Fitness is the ability to meet the demands of the environment and relates to specific components.
健康是身体、心理和社会完全安宁的状态，不仅仅是没有疾病。体适能是满足环境需求的能力，与特定要素相关。
Health-related components include cardiovascular endurance, muscular strength, muscular endurance, flexibility and body composition. These contribute to overall well-being and reduce the risk of hypokinetic diseases.
健康相关要素包括心血管耐力、肌肉力量、肌肉耐力、柔韧性和身体组成，有助于整体健康并降低缺乏运动导致的疾病风险。
Skill-related components are agility, balance, coordination, power, reaction time and speed. They are crucial for effective performance in sports. A sprint start demands high power and reaction time, while a gymnastics routine relies heavily on balance and coordination.
技能相关要素包括敏捷性、平衡能力、协调性、爆发力、反应时间和速度，对运动表现至关重要。短跑起跑需要高爆发力和反应时间，体操则高度依赖平衡与协调。
7. Principles of Training and Overload | 训练原则与超负荷
The principles of training guide safe and effective programme design. Specificity means training must be relevant to the sport or goal. Progressive overload involves gradually increasing the training demand to force adaptation. Reversibility indicates that fitness gains are lost when training ceases.
训练原则指导安全有效的计划设计。专项性指训练必须与运动或目标相关。渐进超负荷要求逐步增加训练负荷以促使适应。可逆性说明停止训练后体适能提高会消退。
The FITT principle helps apply overload: Frequency (how often), Intensity (how hard), Time (how long) and Type (the kind of exercise). For aerobic improvement, a runner might increase frequency from 3 to 4 sessions per week, or increase the duration of each run.
FITT原则用于实施超负荷：频率（多久一次）、强度（多大负荷）、时间（持续多久）、类型（何种运动）。为提升有氧能力，跑者可把频率从每周3次增至4次，或延长每次跑步时间。
Additional principles include individual needs and rest and recovery. The body adapts during rest, so training sessions should be balanced with adequate sleep and nutrition. Overtraining leads to fatigue, injury and performance decline.
此外还有个人需求和休息恢复原则。身体在休息时发生适应，因此训练课次应与充足的睡眠和营养平衡。过度训练会导致疲劳、受伤和成绩下降。
8. Methods of Training | 训练方法
Continuous training involves steady, moderate-intensity exercise for at least 20 minutes without rest, such as jogging, cycling or swimming. It primarily develops aerobic capacity and is suitable for endurance athletes.
持续训练指至少20分钟无间歇的稳定中等强度运动，如慢跑、骑行或游泳，主要发展有氧能力，适合耐力运动员。
Interval training alternates periods of high-intensity work with rest or low-intensity recovery. It can improve both aerobic and anaerobic fitness. High-Intensity Interval Training (HIIT) uses short, maximal efforts to rapidly increase cardiovascular fitness and metabolic rate.
间歇训练将高强度工作阶段与休息或低强度恢复阶段交替进行，可同时提高有氧和无氧体适能。高强度间歇训练(HIIT)采用短时间最大用力，快速提升心血管体适能和代谢率。
Circuit training uses a series of exercise stations targeting different muscle groups or fitness components. It is versatile, time-efficient and can combine strength, endurance and cardiovascular stations. Fartlek training blends continuous movement with varied pace, ideal for sports requiring changes in speed.
循环训练利用一系列练习站，针对不同肌群或体适能要素，灵活多样、省时高效，可结合力量、耐力和心血管站。法特莱克训练将连续运动与变速跑结合，适合需要速度变化的运动项目。
Weight training builds muscular strength and endurance using free weights or machines. Plyometric training develops explosive power through rapid stretching and contracting of muscles, while flexibility training (static, dynamic, PNF) improves range of motion and reduces injury risk.
重量训练利用自由重量或器械增强肌力和肌耐力。超等长训练通过肌肉的快速拉长-收缩发展爆发力；柔韧性训练（静态、动态、PNF）改善关节活动范围并降低受伤风险。
9. Skill Acquisition and Classification | 技能习得与分类
A skill is a learned, goal-directed action. Skills are classified along continua: open–closed (environmental predictability), gross–fine (muscular involvement), discrete–serial–continuous (clear beginning and end), and self-paced–externally paced (performer’s control over timing).
技能是习得的、有目标指向的动作。技能可依据连续体分类：开放式–封闭式（环境可预测性）、粗大–精细（肌群参与）、分立–序列–连续（起止点明确性）、自我节奏–外部节奏（执行者对时机的控制）。
Feedback is essential for learning. Intrinsic feedback comes from the performer’s own senses (kinaesthesis). Extrinsic feedback is provided by coaches or video. Knowledge of results (KR) tells the performer what happened, while knowledge of performance (KP) focuses on the quality of the movement.
反馈对学习至关重要。内在反馈来自执行者自身的感官（动觉）；外在反馈由教练或视频提供。结果反馈(KR)告知发生了什么，表现反馈(KP)侧重动作质量。
Fitts and Posner’s model outlines three stages of learning: cognitive (beginner, frequent errors, trial and error), associative (practice phase, fewer errors, motor programmes develop) and autonomous (automatic, little conscious thought, can focus on tactics).
菲茨和波斯纳模型概括三阶段：认知阶段（初学者常出错，反复尝试）、联结阶段（练习阶段，错误减少，运动程序形成）、自动化阶段（自动执行，无需过多意识，可专注策略）。
10. Psychology of Sport and Performance | 运动心理学与表现
Motivation directs and energises behaviour. Intrinsic motivation comes from internal satisfaction, such as enjoyment and personal achievement. Extrinsic motivation involves external rewards like medals, praise or money.
动机引导并激发行为。内在动机源自内部满足感，如乐趣和个人成就；外在动机涉及奖牌、表扬或金钱等外部奖励。
Arousal is the level of mental and physical readiness. The Inverted-U theory suggests performance increases with arousal up to an optimal point, beyond which performance declines. The optimum varies by skill type: complex skills require lower arousal, while gross, strength-based skills benefit from higher arousal.
唤醒是心理和身体的准备程度。倒U理论认为，表现随唤醒水平上升而提升，到达最佳点后开始下降。最佳水平因技能类型而异：复杂技能需较低唤醒，粗大、力量型技能则受益于较高唤醒。
Anxiety can be cognitive (mental worry) or somatic (physical symptoms like increased heart rate). Managing anxiety through breathing techniques, mental rehearsal and positive self-talk helps maintain focus. Goal setting using the SMART acronym (Specific, Measurable, Achievable, Relevant, Time-bound) improves motivation and performance.
焦虑分为认知性（心理担忧）和躯体性（心率加快等生理反应）。通过呼吸技巧、心理排练和积极自我对话管理焦虑有助保持专注。采用SMART原则（具体、可测量、可实现、相关、有时限）设定目标能提高动机和表现。
11. Social and Cultural Influences | 社会与文化影响
Participation in physical activity is influenced by factors such as age, gender, disability, socio-economic status, ethnicity and the media. Stereotyping can limit opportunities, but campaigns like ‘This Girl Can’ challenge traditional perceptions and promote inclusivity.
体育活动的参与受年龄、性别、残障、社会经济地位、种族和媒体等因素影响。刻板印象可能限制机会，但“This Girl Can”等活动挑战传统观念，促进包容性。
Sponsorship and commercialisation bring financial support and media coverage but can also lead to pressure on athletes, rule changes to suit television schedules, and the promotion of unhealthy products. The golden triangle outlines the interdependence between sport, media and business.
赞助与商业化带来资金支持和媒体报道，但也可能导致运动员压力增大、为适应电视转播而修改规则，以及推广不健康产品。黄金三角描述了体育、媒体和商业之间的相互依存关系。
Ethical issues include sportsmanship, gamesmanship, deviance, and the use of performance-enhancing drugs. Governing bodies enforce rules and drug testing to uphold fair play. Technology in sport (e.g., Hawk-Eye, wearable monitors) improves accuracy and enhances performance analysis.
伦理问题包括体育精神、竞技取巧、越轨行为及使用兴奋剂。管理机构执行规则和药检以维护公平竞争。运动科技（如鹰眼、可穿戴监测器）提高了精确度并加强表现分析。
12. Injury Prevention and Safety in Sport | 运动伤害预防与安全
Effective warm-ups raise body temperature, increase blood flow to muscles, and improve joint mobility. A warm-up typically consists of a pulse-raiser, dynamic stretching and sport-specific drills. A cool-down helps gradual recovery and removes lactic acid through low-intensity activity and static stretching.
有效的热身提高体温、增加肌肉血流并改善关节活动度。热身通常包括提升心率、动态拉伸和专项技能练习。整理活动通过低强度活动和静态拉伸帮助渐进恢复、清除乳酸。
Injury prevention strategies include wearing appropriate protective equipment, following the rules, using correct technique, and ensuring the environment is safe. Overuse injuries such as shin splints and stress fractures result from repetitive impact without sufficient rest.
伤害预防策略包括佩戴合适护具、遵守规则、使用正确技术和确保场地安全。过度使用损伤（如胫骨疲劳性骨膜炎和应力性骨折）源于反复冲击而休息不足。
Common acute injuries include sprains (ligament damage), strains (muscle or tendon damage), fractures and dislocations. RICE (Rest, Ice, Compression, Elevation) is the immediate treatment for soft-tissue injuries, reducing swelling and pain before professional assessment.
常见急性损伤包括扭伤（韧带损伤）、拉伤（肌肉或肌腱损伤）、骨折和脱臼。RICE（休息、冰敷、加压包扎、抬高患肢）是软组织损伤的即时处理方法，可在专业评估前减轻肿胀和疼痛。
Published by TutorHao | Cambridge IGCSE Physical Education Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导，国外大学本科硕士研究生博士课程论文辅导