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Sports injuries are injuries that occur in athletic activities. They can result from acute trauma, or from overuse of a particular body part. == Classification == Traumatic injuries account for most injuries in contact sports such as ice hockey, association football, rugby league, rugby union, Australian rules football, Gaelic football and American football because of the dynamic and high collision nature of these sports. Collisions with the ground, objects, and other players are common, and unexpected dynamic forces on limbs and joints can cause injury. Traumatic injuries can include: * Contusion or bruise - damage to small blood vessels which causes bleeding within the tissues. * Strain - trauma to a muscle due to overstretching and tearing of muscle fibers * Sprain - an injury in a joint, caused by the ligament being stretched beyond its own capacity * Wound - abrasion or puncture of the skin * Bone fracture - break(s) in the bone * Head injury - concussions or serious brain damage * Spinal cord injury - damage to the central nervous system or spine * Cramp-a strong muscle contraction that can be very painful lasting in few minutes but massaging the muscles can realive the pain In sports medicine, a catastrophic injury is defined as severe trauma to the human head, spine, or brain. Concussions in sports became a major issue in the United States in the 2000s, as evidence connected repeated concussions and subconcussive hits with chronic traumatic encephalopathy (CTE) and increased suicide risk. CTE is a progressive degenerative disease of the brain found in people with a history of repetitive brain trauma, including symptomatic concussions as well as subconcussive hits to the head that do not cause symptoms. It is most pronounced in football, and a related ailment (dementia pugilistica) afflicts boxers, but is also seen in other sports, and in females and adolescents. Overuse and repetitive stress injury problems associated with sports include: * Runner's knee * Tennis elbow * Tendinosis Some activities have particular risks; see: * Bicycle safety * Gun safety * Sailing ship accidents * Skateboarding#Safety 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sports injury」の詳細全文を読む スポンサード リンク
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