발레리나들의 섭식장애와 골밀도에 관한 연구
A Study of Eating Disorder and Bone Mineral Density in Ballerinas
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본 연구는 발레리나들의 섭식장애와 골밀도에 대해 알아보고자 직업 무용단에서 활동 중인 발레리나 들을 목표 모집단(target population)으로 선정하였고, 표집방법은 집락 표집법(cluster sampling)을 채택하였으며, 표본은 각 집락에서 편의표집(convenience sampling)을 통해 50명을 선정하였다. 섭식장애 설문지는 Stein & Jensen(1995)의The Anorexia Bulimia Inventory를 기초로 사용하였으며, 골밀도는 자동 골밀도 측정 장비(SONOST-2000, Osteosys Co.)를 사용하여 T-score점수가 -1.0이상은 골밀도 정상 집단(집단 Ⅰ), -1.0∼-2.5사이는 골감소증 집단(집단 Ⅱ)으로 분류하였다. 본 연구의 자료처리는 PASW 18.0 프로그램을 사용하여 빈도분석(frequency analysis), 직교회전방법(varimax)을 이용한 요인분석(factor analysis), 신뢰도분석(reliability analysis)을 실시하였고, 섭식장애 요인과 골밀도 정상집단, 골감소증 집단 간의 차이를 알아보기 위해 나이, 신장, 체중, 신체질량지수, 경력, 월경주기, 초경나이 등의 요인을 통제하여 공변량 분산분석(ANCOVA)을 실시하였으며, 섭식장애 요인과 골밀도와의 상관관계를 분석하기 위하여 상관관계분석(correlation analysis)을 실시하였다. 이때 유의수준은 p<.05로 설정하였다. 발레리나들의 섭식장애와 골밀도에 관한 연구 결과 첫째, 발레리나들의 섭식장애 요인 중 폭식증 요인, 무기력 요인이 골밀도 정상집단과 골감소증 집단 간에 통계적으로 유의한 차이가 있는 것으로 나타났다(p<.05). 둘째, 섭식장애 요인과 골밀도 간의 상관관계분석에 있어서는 무기력 요인과 골밀도 간에 유의한 상관관계가 있는 것으로 나타났다(p<.05). 셋째, 발레리나들에게 있어서 심리불안, 신경성 대식증 및 신체불만족 요인은 골밀도 정상집단과 골감소증 집단 간에 통계적으로 유의한 차이가 없는 것으로 나타났다. 결론적으로 이상섭식 행동을 나타내거나 일상생활에 있어서 자기 컨트롤에 문제가 있는 발레리나일수록 골밀도에 좋지 못한 영향을 미치고 있다고 할 수 있겠다.
Abstract
The purpose of this study was to find out eating disorder and bone mineral density in ballerinas. The ballerina who works at professional dance company were selected as a target population. Cluster sampling were chosen as sampling method and 50 ballerina were selected by convenience sampling in this study. The eating disorder was conducted by Stein & Jensen(1995)'s Anorexia Bulimia Inventory questionnaire and bone mineral density was measured by Quantitative Ultrasonography, and T-score above than -1.0 was classified as a normal group(group I) and T-score between -1.0 and -2.5 was classified as a osteopenia group(group II). Frequency analysis, factor analysis using by varimax and reliability analysis were performed by PASW 18.0 program and in order to find out the differences among eating disorder factors, normal group and osteopenia group, the analysis of covariance, were performed with adjustment of age, height, weight, body mass index, career, regular or irregular of menstrual period, and age at menarche. The correlation analysis were used for finding of correlation between eating disorder factor and bone mineral density. The significant level was set at p<.05. The study of eating disorder and bone mineral density in ballerinas' results were as followed: First, there were significant differences on bulimia and lethargy between normal and osteopenia group(p<.05). Second, there were correlated significantly between lethargy and bone mineral density through correlation analysis(p<.05). Third, there were no significant differences on psychological anxiety bulimia nervosa and body dissatisfaction, between normal and osteopenia group. In conclusion, ballerina, who had eating disorder behavior and problems on self-control in daily life, may had bad affects to bone mineral density.
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