本研究目的旨在探討大一新生1學年內身體質量指數改變與飲食及運動習慣之變化，並了解彼此是否相關。研究對象為大台北地區103學年度入學之新生，共招募並篩檢422名新生(男性198人，女性224人)完成2次體位測量及問卷訪查。結果顯示，入學後8個月整體受試者之體重、身體質量指數與體脂肪百分比顯著增加(p<0.05)，而且飲食行為較入學第1個月習慣偏差，攝取蔬菜與全穀根莖類的頻率減少，高脂食物和酒精性飲料攝取頻率增加，宵夜次數增加，校內自助餐用餐次數和校外非自助餐次數個別減少和增加。不論校際、性別上，入學8個月後購買校內自助餐與體重變化呈現負相關(p<0.05)，顯示新生入學後非多元選擇的飲食行為可導致體重上升。大一新生規律運動人口僅3成左右，運動參與度企待提升。期望校方宣導和提升校園飲食與運動環境供應學生多元食物和舉辦體能活動。
The purpose of this study was to investigate the change of body mass index, dietary and exercise habit as well as understand the relationships among these variables during first year in freshmen in Taipei area. A total of 422 freshmen, 198 male students and 224 female students recruited and screened, also completed twice of measurement including weight, height and questionnaires. As a result, compared with the time of first month in university, body weight, body mass index and body fat percentage of all students were significantly increased at 8 months after entrance of university (p <0.05). The frequency of vegetables and whole grains daily intake were reduced, while high-fat-content food as well as alcohols intake were elevated. The number of late-night snack was increased per week. The growth and decline of off-campus non-buffet and on-campus buffet were respectively observed. Regardless of schools and genders, the times per week of on-campus buffet negatively correlated with the increment of body weight (p <0.05). This result showed that non-variety dietary behavior might cause weight gain in freshmen. Only 30% of freshman maintained regular exercise habit. It would be expected that healthy food and sport environments created by universities in order to supply various foods and sport events for students.
