📚 Year 10 CCEA Physical Education: Core Knowledge Review | CCEA 10年级体育核心知识点梳理
This guide brings together the most important concepts from the Year 10 CCEA Physical Education specification. Whether you are preparing for an end-of-year test or simply reinforcing your understanding, these notes cover the skeletal, muscular, cardiovascular and respiratory systems, the components of fitness, training principles, energy systems, nutrition and injury prevention. Each section is written to help you recall essential facts and strengthen your exam answers.
本指南梳理了 CCEA 10年级体育课程中最重要的核心概念。无论你是在为年末考试做准备，还是想要巩固理解，这些笔记都涵盖了骨骼、肌肉、心血管和呼吸系统、体适能组成要素、训练原则、能量系统、营养以及损伤预防等内容。每一节都旨在帮助你回忆关键事实，并提升你的考试答题能力。
1. The Skeletal System and Joint Actions | 骨骼系统与关节动作
Your skeleton provides five essential functions: support, protection of vital organs, movement, mineral storage and blood cell production. Bones act as levers, and joints allow those levers to move in specific directions. The four main types of synovial joint you need to know are ball-and-socket (hip, shoulder), hinge (elbow, knee), pivot (neck, radioulnar) and condyloid (wrist). Each type permits distinct movements; for example, a ball-and-socket joint allows flexion, extension, abduction, adduction and rotation, whereas a hinge joint only permits flexion and extension.
骨骼提供五项基本功能：支撑、保护重要器官、运动、矿物质储存和血细胞生成。骨起到杠杆作用，关节使这些杠杆能沿特定方向运动。你需要了解的四种主要滑液关节类型是球窝关节（髋、肩）、铰链关节（肘、膝）、枢轴关节（颈部、桡尺关节）和髁状关节（腕）。每种关节允许不同的运动方式；例如，球窝关节允许屈、伸、外展、内收和旋转，而铰链关节只能进行屈和伸。
When analysing movement, always identify the agonist (prime mover) and antagonist (relaxing muscle) pair. For a bicep curl, the biceps brachii is the agonist during the lifting phase and the triceps brachii acts as the antagonist. Movement terminology is precise: plantar-flexion points the toes, dorsi-flexion lifts the foot upwards, and circumduction describes a circular motion combining flexion, extension, abduction and adduction.
在分析动作时，始终要找出主动肌（原动肌）和拮抗肌（放松的肌肉）配对。以肱二头肌弯举为例，在上举阶段肱二头肌是主动肌，肱三头肌则作为拮抗肌。动作术语很精确：跖屈指向下绷脚尖，背屈将足部向上勾起，而环转则是结合屈、伸、外展和内收的圆周运动。
2. The Muscular System and Movement | 肌肉系统与运动
Voluntary skeletal muscles work across joints to produce movement. Key muscles you must recognise include deltoids, pectorals, biceps, triceps, abdominals, quadriceps, hamstrings, gluteals and gastrocnemius. Antagonistic pairs work together: when one contracts, the other relaxes, ensuring smooth, controlled motion. During a press-up, the triceps brachii contracts to extend the elbow while the biceps brachii lengthens.
随意骨骼肌跨关节工作以产生运动。你必须能辨认的关键肌肉包括三角肌、胸大肌、肱二头肌、肱三头肌、腹肌、股四头肌、腘绳肌、臀肌和腓肠肌。拮抗肌对协同运作：一块肌肉收缩时，另一块放松，从而保证动作平稳受控。在做俯卧撑时，肱三头肌收缩使肘关节伸展，而肱二头肌被拉长。
Muscle contraction types include isotonic (concentric and eccentric) and isometric. Concentric contraction shortens the muscle – the upward phase of a squat. Eccentric contraction involves the muscle lengthening under tension – the downward phase of a squat. Isometric contraction occurs when the muscle tenses without changing length, as in a plank hold. Understanding these helps you explain how force is applied in different phases of sporting movements.
肌肉收缩类型包括等张收缩（向心与离心）和等长收缩。向心收缩使肌肉缩短——如深蹲的向上阶段。离心收缩则是在张力下肌肉被拉长——如深蹲的向下阶段。当肌肉收紧但长度不变时发生等长收缩，如平板支撑。理解这些有助于解释体育动作各阶段中力的施加方式。
3. The Cardiovascular System | 心血管系统
The cardiovascular system comprises the heart, blood and blood vessels. Its primary job is to deliver oxygen and nutrients to working muscles and remove waste products such as carbon dioxide. The heart has four chambers: right and left atria (receiving chambers) and right and left ventricles (pumping chambers). Deoxygenated blood returns to the right atrium, flows into the right ventricle and is pumped to the lungs via the pulmonary artery. Oxygenated blood returns to the left atrium, enters the left ventricle and is ejected through the aorta to the body.
心血管系统由心脏、血液和血管组成。其主要功能是向工作肌肉输送氧气和营养，并清除二氧化碳等废物。心脏有四个腔室：右心房和左心房（接受腔），以及右心室和左心室（泵血腔）。去氧血返回右心房，流入右心室，经肺动脉泵入肺部。含氧血返回左心房，进入左心室，再通过主动脉泵向全身。
se, both HR and SV increase, raising cardiac output to supply more oxygen to muscles. Regular training can lower resting heart rate and increase stroke volume, making the heart more efficient. Blood vessels include arteries (carry blood away from the heart, thick muscular walls), veins (return blood to the heart, contain valves) and capillaries (site of gas exchange, one cell thick).
心率（HR）是每分钟心跳次数。每搏输出量（SV）是每搏泵出的血量。心输出量（Q）= 心率 × 每搏输出量。运动时，心率和每搏输出量都增加，从而提高心输出量，为肌肉供应更多氧气。定期训练能降低安静心率、增加每搏输出量，使心脏更高效。血管包括动脉（将血液带离心脏，管壁厚且有肌肉）、静脉（将血液送回心脏，内含瓣膜）和毛细血管（气体交换场所，仅一层细胞厚）。
4. The Respiratory System | 呼吸系统
The respiratory system brings oxygen into the body and removes carbon dioxide. Air travels through the nasal passages, trachea, bronchi and bronchioles until reaching the alveoli – tiny air sacs surrounded by capillaries. Gas exchange occurs here: oxygen diffuses into the blood, and carbon dioxide moves out to be exhaled. The diaphragm and intercostal muscles drive breathing movements.
呼吸系统将氧气带入体内并排出二氧化碳。空气依次通过鼻腔、气管、支气管和细支气管，最终到达肺泡——被毛细血管包围的微小气囊。气体交换在此进行：氧气扩散进入血液，二氧化碳移出并被呼出。膈肌和肋间肌驱动呼吸运动。
ate). During exercise, both increase dramatically. After intense activity, you continue to breathe heavily to repay oxygen debt – This post-exercise oxygen consumption (EPOC) helps restore the body to its resting state.
两个重要指标是潮气量（安静时每次吸入或呼出的空气量）和每分通气量（潮气量 × 呼吸频率）。运动时两者均大幅上升。剧烈活动后，你仍会大口喘气以偿还氧债——这是分解无氧运动中积累的乳酸所需的额外氧气。运动后过量氧耗（EPOC）有助于将身体恢复至安静状态。
5. Health-Related Fitness Components | 健康相关体适能要素
There are five health-related components of fitness, and exam questions often ask you to define them, explain their relevance to health, and suggest a suitable test.
健康相关体适能包含五个要素，考试题常要求你给出定义、说明它们与健康的关系并提出合适的测试方法。
| Component | Definition | Example Test |
|---|---|---|
| Cardiovascular endurance | Ability of heart and lungs to supply oxygen over a sustained period | Multi-stage fitness test (bleep test) |
| Muscular strength | Maximum force a muscle can exert in one contraction | Hand-grip dynamometer test |
| Muscular endurance | Ability of a muscle to repeat contractions without fatigue | Sit-up test or press-up test |
| Flexibility | Range of movement around a joint | Sit-and-reach test |
| Body composition | Ratio of fat mass to lean mass in the body | Skinfold callipers or BMI |
Cardiovascular endurance reduces the risk of heart disease, while strength and endurance support daily tasks and posture. Flexibility helps prevent injury, and healthy body composition reduces the risk of obesity-related conditions.
心血管耐力可降低心脏病风险，肌力和肌耐力支撑日常活动和姿势。柔韧性有助于预防损伤，健康的身体成分则可降低肥胖相关疾病的风险。
6. Skill-Related Fitness Components | 技能相关体适能要素
Skill-related components influence your performance in sports. The six you need to know are agility, balance, coordination, power, reaction time and speed.
技能相关体适能要素影响你在运动中的表现。你需要掌握以下六个要素：敏捷性、平衡、协调性、功率、反应时间和速度。
- Agility: the ability to change direction quickly while maintaining control – essential for a rugby winger. / 敏捷性：快速改变方向同时保持控制的能力，对橄榄球边锋至关重要。
- Balance: the ability to keep the body stable, whether stationary (static) or moving (dynamic) – needed by a gymnast on a beam. / 平衡：保持身体稳定的能力，无论是静止（静态）还是移动（动态），体操运动员在平衡木上就需要此能力。
- Coordination: the smooth combination of two or more body parts – vital in racket sports for hitting a ball. / 协调性：两个或以上身体部位的流畅配合，在执拍运动中击球时至关重要。
- Power: the product of strength and speed (Power = Force × Velocity) – seen in a long jumper's take-off. / 功率：力量与速度的乘积（功率 = 力 × 速度），可见于跳远运动员的起跳。
- Reaction time: the time taken to respond to a stimulus – critical for a sprint start. / 反应时间：对刺激做出反应所需的时间，对短跑起跑至关重要。
- Speed: the ability to move the body or body parts quickly – crucial for a 100 m sprinter. / 速度：快速移动身体或身体部位的能力，对百米短跑运动员至关重要。
Examiners often ask you to link a specific component to a named sporting action and explain how it enhances performance.
阅卷者常要求你将特定要素与具体的运动动作联系起来，并解释该要素如何提升表现。
7. Principles of Training (SPOR & FITT) | 训练原则（SPOR 与 FITT）
The principles of training guide how you plan a programme to improve fitness safely and effectively. The mnemonic SPOR (or SPORT) helps you remember: Specificity – training must be relevant to the sport or goal. Progression – gradually increase the workload as the body adapts. Overload – exercise at a level above your normal threshold; you can manipulate Frequency, Intensity, Time and Type (FITT). Reversibility – fitness levels drop when training stops or intensity reduces. Tedium – variety prevents boredom.
训练原则指导如何安全有效地制定体适能提升计划。记忆口诀 SPOR（或 SPORT）可以帮助你记住：专项性——训练必须与运动项目或目标相关。渐进性——随着身体适应，逐步增加负荷。超负荷——在高于正常阈值的水平上运动，可调节频率、强度、时间和类型（FITT）。可逆性——训练停止或强度降低时，体适能水平会下降。乏味性——多样化训练可避免枯燥。
The FITT principle gives a formula for applying overload: Frequency – how often you train (e.g. 3 times per week). Intensity – how hard you work (e.g. 70–85% of maximum heart rate for cardiovascular work). Time – duration of the session (e.g. 30 minutes). Type – the method used (continuous, interval, circuit). To improve cardiovascular endurance, you might increase frequency to four sessions, raise intensity to 75% max HR, extend time to 40 minutes and use continuous running.
FITT 原则为应用超负荷提供了一个公式：频率——训练的次数（例如每周3次）。强度——训练的艰苦程度（例如心血管训练用心率储备的70–85%）。时间——训练时长（例如30分钟）。类型——使用的方法（持续训练、间歇训练、循环训练）。要提高心血管耐力，你可以将频率增加到四次、强度提升至最大心率的75%、时间延长至40分钟并采用持续跑。
8. Aerobic and Anaerobic Exercise | 有氧与无氧运动
Your body uses two main systems to produce energy for movement. Aerobic exercise uses oxygen to break down glucose; it produces a large amount of ATP (energy) with carbon dioxide and water as by-products. Activities such as long-distance running, cycling and swimming are predominantly aerobic and can be sustained for extended periods.
你的身体主要使用两个系统为运动供能。有氧运动利用氧气分解葡萄糖，产生大量 ATP（能量），副产物为二氧化碳和水。长跑、骑行和游泳等运动主要依赖有氧供能，可以持续较长时间。
Anaerobic exercise occurs at a high intensity where oxygen demand exceeds supply. It breaks down glucose without oxygen, producing ATP quickly but leading to lactic acid accumulation. This causes muscle fatigue and the burning sensation felt during a 400 m sprint or repeated weightlifting. The lactic acid system provides energy for events lasting around 60–90 seconds. For even shorter, explosive efforts (up to about 10 seconds), the body uses the phosphocreatine system without producing lactic acid.
无氧运动发生在高强度下，此时需氧量超过供氧量。它在无氧条件下分解葡萄糖，迅速生成 ATP，但同时导致乳酸堆积。这会引发肌肉疲劳以及 400 米冲刺或重复举重时感到的灼烧感。乳酸系统为持续约 60–90 秒的项目供能。而在更短、爆发性的用力（约 10 秒内）中，身体使用磷酸肌酸系统，不产生乳酸。
Knowing which system dominates a sport allows you to design appropriate training methods, such as interval training for anaerobic capacity and steady-state runs for aerobic endurance.
了解某项运动主要使用哪个系统，有助于你设计合适的训练方法，例如用间歇训练提升无氧能力，用匀速跑提高有氧耐力。
9. Nutrition and Hydration | 营养与补水
A balanced diet provides the macronutrients and micronutrients needed for energy, growth and repair. Carbohydrates are the body's preferred energy source; complex carbohydrates (pasta, rice, wholemeal bread) release energy slowly, making them ideal before endurance events. Fats also provide energy, especially during low-intensity, prolonged exercise. Proteins are essential for muscle repair and growth and should be consumed after training.
均衡的饮食提供能量、生长和修复所需的大量与微量营养素。碳水化合物是身体首选的能量来源；复合碳水化合物（意大利面、米饭、全麦面包）缓慢释放能量，因此特别适合在耐力赛事前食用。脂肪也提供能量，尤其在低强度、长时间运动中。蛋白质对肌肉修复与生长至关重要，应在训练后摄入。
Micronutrients, including vitamins and minerals, support various body functions. For example, calcium and vitamin D are vital for bone health, while iron is needed to form haemoglobin for oxygen transport. Fibre aids digestion, and water is critical for temperature regulation and all chemical reactions. Dehydration of even 2% body mass can impair performance, so athletes should hydrate before, during and after exercise. Isotonic sports drinks can be useful during prolonged events to replace fluids and electrolytes quickly.
微量营养素，包括维生素和矿物质，支持身体的多种功能。例如，钙和维生素 D 对骨骼健康至关重要，而铁是生成血红蛋白以运输氧气所必需的。纤维有助消化，水则对体温调节和所有化学反应都至关重要。即使是 2% 体重的脱水也会损害运动表现，因此运动员应在运动前、中、后补水。等渗运动饮料在长时间赛事中有助于快速补充水分和电解质。
10. Injury Prevention and Safety in Sport | 运动损伤预防与安全
Preventing injuries starts with a proper warm-up and cool-down. A warm-up increases heart rate, blood flow and muscle temperature, preparing the body for activity and reducing the risk of muscle strains. It typically consists of pulse-raising activities, dynamic stretches and sport-specific drills. A cool-down helps the body return to resting levels gradually, preventing blood pooling and reducing muscle soreness. It should include gentle cardiovascular activity and static stretching.
预防损伤要从充分的热身和整理活动做起。热身可提高心率、血流量和肌肉温度，使身体为活动做好准备，并降低肌肉拉伤的风险。热身通常包括提升脉搏的活动、动态拉伸和专项练习。整理活动有助于身体逐步恢复至安静水平，防止血液淤积并减轻肌肉酸痛。整理活动应包括缓和的血管活动与静态拉伸。
Other safety measures include using correct footwear and protective equipment (shin pads, helmets), obeying the rules of the sport, and ensuring the playing environment is safe. If an injury occurs, the RICE protocol (Rest, Ice, Compression, Elevation) should be applied to soft-tissue injuries to limit swelling and pain. Severe injuries such as suspected fractures or head trauma require immediate medical attention and should never be ignored.
其他安全措施包括穿着合适的鞋子和防护装备（护胫板、头盔），遵守运动规则，并确保运动环境安全。一旦发生损伤，应对软组织损伤采用 RICE 处置法（休息、冰敷、加压、抬高）以限制肿胀和疼痛。疑似骨折或头部外伤等严重损伤则需要立即就医，绝不能忽视。
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