A traumatic injury to soft tissue, usually the brain, as a result of a violent blow, shaking, or spinning. A brain concussion can cause immediate but temporary impairment of brain functions, such as thinking, vision, equilibrium, and consciousness. After a person has had a concussion, he or she is at increased risk for recurrence. Moreover, after a person has several concussions, less of a blow can cause injury, and the person can require more time to recover.
- Concussion of the brain
Once a person has had a concussion, he or she is as much as four times more likely to sustain a second one. Moreover, after several concussions, it takes less of a blow to cause the injury and requires more time to recover.
Condition: The term “condition” has a number of biomedical meanings including the following: An unhealthy state, such as in “this is a progressive condition.” A state of fitness, such as “getting into condition.” Something that is essential to the occurrence of something else; essentially a “precondition.” As a verb: to cause a change in something […]
- Condition, Sever
Condition, Sever: Inflammation of the growth plate of the calcaneus, the bone at the back of the heel. The inflammation is at the point where the Achilles tendon attaches. Sever condition occurs mainly in adolescent or older children, particularly active boys. It can be very painful. It is one of those conditions often dismissed as […]
Conditioning: 1) Exercise and practice to build the body up for either improved normal performance, as in physical therapy, or in preparation for sports performance. 2) A method of educating involving repetitive activities to influence behavior.
- Conditioning, Pavlovian
Conditioning, Pavlovian: Use of a system of rewards and punishments to influence behavior. Named after the Russian physiologist Ivan Petrovich Pavlov, who conditioned dogs to respond in what proved to be a predictable manner by giving them rewards.