England Beau, Larsen Jeffery Blythe
Am J Audiol. 2014 Mar;23(1):71-8. doi: 10.1044/1059-0889(2013/12-0071).
The intensity of noise levels in a basketball arena during games, as well as the hearing sensitivity of attendees, was measured for the purpose of assessing the impact of the noise on hearing thresholds.
Noise levels at 10 intercollegiate basketball games were measured with a dosimeter affixed on the shoulders of attendees. Hearing thresholds and distortion product otoacoustic emissions were measured for 20 participants just before attending a basketball game and within an hour of the end of the game to determine whether changes in hearing thresholds resulted from exposure to the sound levels within the arena during the games.
Participants demonstrated temporary shifts in pure-tone thresholds and reductions in the intensity of their otoacoustic emissions after attendance at 1 of the basketball games. Dosimeter measurements showed that noise at 6 of the 10 basketball games exceeded acceptable intensity levels when compared with a national workplace noise exposure standard.
Although noise intensities, on average, did not exceed workplace exposure standards, universities would be wise to be proactive in warning spectators about the potential dangers of noise exposure at sporting events, make earplugs available to interested spectators, and implement a hearing conservation program for employees working in noise.
测量篮球比赛期间篮球场馆内的噪音强度以及观众的听力敏感度，以评估噪音对听力阈值的影响。
在10场大学篮球比赛中，将剂量计固定在观众肩上测量噪音水平。在20名参与者参加篮球比赛前及比赛结束后一小时内测量其听力阈值和畸变产物耳声发射，以确定比赛期间场馆内的声级暴露是否导致听力阈值变化。
在参加其中1场篮球比赛后，参与者表现出纯音阈值的暂时变化以及耳声发射强度的降低。剂量计测量显示，与国家工作场所噪音暴露标准相比，10场篮球比赛中有6场的噪音超过了可接受的强度水平。
尽管平均噪音强度未超过工作场所暴露标准，但大学应积极主动地向观众警示体育赛事中噪音暴露的潜在危险，向有兴趣的观众提供耳塞，并为在噪音环境中工作的员工实施听力保护计划。
