음악 · 무용을 전공하는 여고생의 식생활 습관과 골 밀도에 관한 연구

A Study on Eating Habits and Bone Density of Girls’ High School Students Majoring in Music and Dance

Bone mass is accumulated at growth period and women can reach about 90% of maximum bone mass by 18 and bone growth is very important. Thus examination of bone density of girls' high school students is needed, but materials of bone density are lacking. This study examines health conditions, living habits, eating behaviors, measures bone density and obtains the following results in order to evaluate influence of eating habits of girls' high school students majoring music and dance on their bone density. As a result of examining general items with subjects, average height and weight were 162.3 cm and 53.9 kg in music students and 165.5 cm and 51.0 kg in dance students and their weight was showed significant difference. Body Mass Index (BMI) was 20.4 kg/㎡ in music students and as 18.6 kg/㎡ in dance students and music students were significantly higher than dance students. As a result of examining health conditions and living habits, dizziness and vertigo were 15.4% in music students and 53.8% in dance students and dance students were significantly higher. Daily average sleeping hours were highest at ‘6～7 hours' as 34.6% and 38.5% in music and dance students respectively, but 61.5% of music students responded it was sufficient and 65.4% of dance students responded it was insufficient. 88.5% of music students didn't perform regular exercise and 84.6% of dance students did regular exercise and there was significant difference between two groups. As a result of examining their eating behaviors, 71.2% of subjects have breakfast. Bone density was 705.0 g/㎤ at music students and 715.3 g/㎤ at dance students and that of dance students was higher than that of music students. In the relationship between BMI and bone density, ‘16~19.9' of BMI corresponded to 712.4 g/㎤ of bone density, ‘20~24.9' of BMI to 709.8 g/㎤ of bone density and ‘over 25' of BMI was 741.5 g/㎤ of bone density and there was significant difference. In sum, since dance students who did regular exercise had higher bone density, it was known that exercise is profitable factor to increase bone density and more researches on promoting bone health of youth are needed in future.