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This lesson covers the structure, purpose, and physiological effects of warming up and cooling down, as required by the OCR GCSE PE specification (J587). You must understand why each phase is important, what each phase includes, and how they help to prevent injury and improve performance. This is a core topic for OCR Paper 1 and frequently appears in both short-answer and extended-response questions.
Definition: A structured period of preparatory exercise performed before the main activity to prepare the body physically and mentally for exercise.
OCR expects you to know the following phases:
| Phase | Description | Duration |
|---|---|---|
| 1. Pulse raising | Light aerobic activity that gradually increases heart rate and blood flow (e.g. jogging, cycling, skipping) | 3–5 minutes |
| 2. Mobility exercises | Movements that take joints through their full range of motion (e.g. arm circles, hip circles, ankle rotations) | 2–3 minutes |
| 3. Stretching | Static stretches held for 10–30 seconds to increase flexibility and prepare muscles for activity | 3–5 minutes |
| 4. Dynamic movements | Active movements that mimic the actions of the sport at increasing intensity (e.g. high knees, lunges, lateral shuffles) | 3–5 minutes |
| 5. Skill rehearsal | Practising sport-specific skills at gradually increasing intensity (e.g. passing drills in football, serve practice in tennis) | 3–5 minutes |
graph LR
A["Pulse<br>Raising"] --> B["Mobility<br>Exercises"]
B --> C["Stretching"]
C --> D["Dynamic<br>Movements"]
D --> E["Skill<br>Rehearsal"]
style A fill:#3498db,color:#fff
style B fill:#2ecc71,color:#fff
style C fill:#f39c12,color:#fff
style D fill:#e67e22,color:#fff
style E fill:#e74c3c,color:#fff
| Effect | Explanation |
|---|---|
| Increased heart rate | The heart beats faster, pumping more blood to the working muscles |
| Increased blood flow to muscles | Vasodilation of blood vessels supplying the muscles ensures more oxygen and glucose are delivered |
| Increased muscle temperature | Warmer muscles contract more forcefully and relax more quickly, improving speed and power |
| Increased flexibility | Warmer muscles and connective tissues are more elastic, reducing the risk of strains and tears |
| Increased synovial fluid production | Joints become better lubricated, allowing smoother and less painful movement |
| Increased nerve impulse transmission | Reaction time and coordination improve as the nervous system becomes more active |
| Increased enzyme activity | Metabolic enzymes work more efficiently at higher temperatures, speeding up energy production |
| Psychological preparation | The performer mentally focuses on the upcoming activity, increasing concentration and confidence |
Exam Tip: A common 6-mark question asks you to "explain the benefits of a warm up." To achieve full marks, you must name specific physiological effects (e.g. increased muscle temperature, increased synovial fluid) and link each one to a benefit (e.g. "increased muscle temperature means muscles contract more forcefully, which improves performance" or "reduces the risk of muscle strains").
Definition: A structured period of exercise performed after the main activity to help the body return to its resting state safely and promote recovery.
| Phase | Description | Duration |
|---|---|---|
| 1. Low-intensity exercise (active recovery) | Light aerobic activity such as gentle jogging or walking that gradually reduces heart rate and maintains blood flow | 5–10 minutes |
| 2. Stretching | Static stretches targeting the major muscle groups used during the activity, held for 15–30 seconds | 5–10 minutes |
graph LR
A["Low-Intensity<br>Exercise<br>(active recovery)"] --> B["Static<br>Stretching"]
style A fill:#3498db,color:#fff
style B fill:#2ecc71,color:#fff
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