Warm-up, cool-down and injury prevention
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给教育者： 面向 Warm-up, cool-down and injury prevention（Physical Education，Physical Training）的即用型课程幻灯片, 复习笔记——用在你的课堂上，或将该知识点作为学习者可实时游玩的互动课堂活动来运行。
课程笔记
Warm-up
- A suitable warm-up gradually prepares circulation, temperature, relevant joint movements, skills and attention. Pulse raising, mobility, controlled dynamic activity and relevant skill rehearsal can be selected for the activity and person; there is no single rigid sequence for every setting.
- Warm-up can contribute to readiness and reduce some risks as part of a wider programme. It should not exhaust the performer or be described as a guarantee. Specificity can apply to movement preparation as well as final skill rehearsal.
Prepare for the actual demand
Cool-down
- A cool-down gradually reduces activity and supports transition towards rest. Gentle appropriate movement and selected stretching can form part of it. Individual recovery also involves suitable rest, food and fluid and depends on the demand.
- Active recovery can speed blood-lactate reduction in some conditions, but that does not establish less next-day soreness. DOMS is not retained lactate and neither cooling down nor stretching guarantees its prevention. Do not use a simplified recovery claim as proof that every injury is avoidable.
Limit the recovery claim
Types of stretching
- Static stretching holds a position; dynamic stretching moves through an appropriate controlled range. Ballistic methods use momentum or bouncing near a range limit, while PNF methods can use contraction-relaxation techniques. PNF need not always involve a partner.
- Method choice depends on purpose, timing and suitability. No method is universally safest or best, and forcing painful range is not an appropriate aim. Use suitable instruction and avoid unsupervised partner force; this conceptual comparison is not a stretching prescription.
Different stretching methods
Common injuries
- Sprain describes ligament damage, strain muscle or tendon injury, fracture a break or crack in bone, and dislocation loss of normal joint alignment. Repetitive loading can also contribute to tendinopathy, shin pain or stress injury; a symptom location does not prove one diagnosis.
- Concussion is a brain injury from force transmitted to the head and can occur without loss of consciousness. Suspected serious injury requires stopping and appropriate help; do not continue through a suspected fracture or attempt to put a dislocation back. Learners are not asked to diagnose or manipulate injuries.
Injury terms refer to different structures
RICE
- RICE stands for rest, ice, compression and elevation, a taught mnemonic for some early soft-tissue-injury contexts. NHS guidance adds protection as PRICE for some sprains and strains. A wrapped cold pack may help symptoms and appropriate support or elevation can help manage swelling.
- The mnemonic is not universal treatment, proof of faster healing or a return-to-play decision. Actual care depends on the injury and current first-aid or clinical guidance. Severe or worsening pain, major swelling, inability to use the area, deformity, numbness or concerning circulation changes need appropriate urgent assessment.
Mnemonic scope matters
Preventing injury
- Appropriate technique, training demands, recovery, facilities, rules and supervision can reduce avoidable risks. Equipment must match the activity and fit: mouthguards address dental risks, shin pads protect lower legs and cycling helmets reduce some head-injury risks.
- No equipment or warm-up prevents every injury or guarantees concussion prevention. Risk management must respond to fatigue, conditions and participant needs throughout the session. Protection is not permission for unsafe behaviour or continuing with an injury concern.
Protection has a specific purpose
Risk assessment
- A hazard is something with potential to cause harm; risk concerns the likelihood and severity in the actual situation. Identify who may be harmed and how, then remove the hazard where possible or introduce a suitable control, such as withdrawing damaged equipment.
- Review whether controls are adequate and respond when conditions change. A wet surface, crowded space or unfamiliar participant demands may require changing, postponing or stopping an activity. An unchecked box is not the issue by itself; explain the hazard and how the control reduces risk.
Turn a hazard into a control decision
Recognising suspected concussion
- Concussion may follow an impact to the head or body that transmits force to the brain. Loss of consciousness is not required. Confusion, unusual behaviour, balance difficulty or other symptoms after impact warrant immediate removal and appropriate medical assessment rather than testing the person by letting them continue.
- No same-day return follows suspected concussion. Serious or worsening signs, such as reduced consciousness, seizure or new weakness, need emergency help. Later return follows appropriate graduated guidance and any medical requirements; a helmet, a short rest or the player’s wish to continue does not provide clearance.
Suspected concussion response
DOMS and pain during activity
- DOMS is delayed soreness following unfamiliar or strenuous activity, especially demanding muscle-lengthening work. It is different from immediate pain and does not establish the diagnosis of a particular injury. Pain patterns and severity still require attention.
- Lactate is not left trapped in muscles to cause next-day DOMS. Faster lactate reduction during light recovery does not prove less delayed soreness. Appropriate progression and recovery can help manage demands, but persistent, severe or unusual pain should not simply be labelled normal soreness.
Distinguish soreness and injury concerns
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练习题
免费预览——38 题中的 8 题。注册即可查看全部。
1.Why do athletes warm up?
Easy- Ato prepare relevant demands and help manage some injury risks
- Bto tire themselves
- Cto avoid training
- Dto remove skills
2.Why do athletes cool down?
Easy- Ato raise heart rate
- Bto avoid recovery
- Cto cause injury
- Dto reduce activity gradually towards rest
3.What does a pulse raiser do?
Easy- Astops breathing
- Breduces temperature
- Cgradually raises heart rate
- Dlowers heart rate
4.What is mobility work?
Easy- Asprinting only
- Bcontrolled movement through an appropriate joint range
- Clifting heavy weights
- Dresting
5.What is static stretching?
Easy- Aholding a stretch in position
- Bbouncing
- Crunning
- Djumping
6.What is dynamic stretching?
Easy- Aholding a position
- Bresting
- Cbouncing
- Dmoving through a range of motion
7.What is ballistic stretching?
Easy- Aresting
- Bslow jogging
- Cbouncing movements to extend range
- Dholding still
8.What is PNF stretching?
Easy- Ajogging
- Bstretching methods using contraction and relaxation phases
- Cstretching with no movement
- Dbouncing
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