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publicado em 17/11/2011 às 12h30:00
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Amplified music with headphones listening to commit 80% of young

Major change was observed in males if there is no rest period, the assault on the ear may become permanent

 
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Research conducted by the speech therapist Valerie Gomes da Silva, in the Graduate Program in Medical Sciences at UNB, suggests the risk of hearing loss in a portion of the young population. The study found that, as a result of exposure to amplified music daily, 80% of the 134 students at a private school in the Federal District showed changes in autoacústicas emissions tests, which assess the functioning of outer hair cells, one reason for the hearing.

The survey was administered to middle-class students, between 14 and 18 years, of both sexes. The results suggested a major change in emission tests autoacústicas in male students.

Valerie explains that the outer hair cells help to amplify the sound and, when stimulated, transmit an electrical impulse to the brain. This impulse is the information that the person is listening. Any change in this transmission process can damage your hearing. Although a study about the behavior on which there are already research, Valerie explains that two technical difereciam work: the research was performed using a more accurate emission autoacústicas and used high-frequency, two situations do not occur in studies on this subject. When evaluating high frequencies we can find major changes in hair cells.

Frequent and intense exposure to noise causes lesions that may be irreversible if there is no rest period. The cells are not regenerated and the injury becomes permanent and can cause hearing loss.

Source: Isaude.net
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hearing loss    youth    amplified music    headphones    test    emissions autoacústicas    outer hair cells    Research    Speech Therapy    Postgraduate Medical Sciences    UNB   
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