비만이란 라틴어 obestias에서 유래한 것으로 어원은 ‘먹어치 웠다(eaten away)’, ‘걸신들린 듯 먹었다(devoured)’의 ‘obesus’에 서 유래된 것으로 섭취한 에너지량에 비해 소모된 에너지량이 적어 잉여 에너지가 발생하게 되고, 이 상태가 오래 계속되어 나타난 영양장애로 볼 수 있다. 비만은 성인병을 유발시키는 촉 진제가 될 뿐 아니라 심장병, 간질환, 당뇨병, 고혈압, 동맥경화 증을 15~40% 증가시킨다. 또한 체중이 뼈와 관절에 부담을 주 게 되어 골격 이상을 초래할 수 있다. 궁극적으로 비만으로 인 한 질병은 공적 건강보험의 재정 악화와 의료비 부담 증가에 부 딪히게 되어 국가의 사회경제적 비용 부담 증가로 이어질 수 있 다.
Purpose: The relationship between weight and hearing loss is unclear. But childhood obesity, defined as body mass index (BMI) ≥ 95%, is a significant health problem associated with a variety of disorders, and in adults it has been found to be a risk factor for hearing loss. Thus in this study, analyzed the relationship between hearing loss and BMI in a 20s young adults. Methods: A total of 49 participants, including 27 females and 20 males aged 21-25 participated in this study. Subjects were divided into three groups according to BMI (underweight, normal, overweight). In all subjects, pure-tone and speech audiometry, acoustic immittance and otoacoustic emission [OAE; spontaneous otoacoustic emission (SOAE), transient evoked otoacoustic emission (TEOAE), distortion product otoacoustic emission (DPOAE)], auditory brainstem response (ABR) were evaluated. Results: The mean of hearing threshold in underweight group were significantly higher than normal group. Regarding the hearing threshold, the low frequency pure tone average threshold was significantly higher in underweight and overweight group. The incidences of SOAEs were 66.7% in normal group, 37.4% in underweight group and 11.1% in overweight group. Between BMI and OAE overweight group had significantly lower TEOAE amplitude. Amplitude of DPOAEs differed significantly among normal, underweight and overweigh BMI group at frequency of 4,000 Hz. Conclusion: We demonstrate for the first time that underweight and overweight in adult in their 20s is associated with higher hearing thresholds in low-frequency. And parameters of OAE, such as amplitude of TEOAE, DPOAE at 4,000 Hz was considered as good indicators for monitoring cochlear function of underweight and overweight BMI group.
INTRODUCTION MATERIALS AND METHODS DISCUSSIONS REFERENCES
