目的：智能障礙者是許多疾病的高危險群，而台灣缺乏此族群相關流行病學 調查。因此本研究為了瞭解本社福機構中成年智能障礙者姿態不良的比例及分布， 分析個人基本資料與姿態的相關性。方法：採取橫斷面研究法（Cross-section study）， 蒐集本社福機構18 歲以上智能障礙者之基本資料，並量測其頭前傾角度、駝背角 度、雙肩角度差，經脊椎側彎篩檢及脊椎側彎X 光影像檢查。以SPSS 20 版統計 套裝軟體進行檔案串檔與相關的描述及推論性統計分析，p 值小於0.05 為顯著差 異。結果：研究樣本共137 位智能障礙者，男性91 位、女性46 位，平均年齡30.9±9.5 歲、體重58.2±12.5 公斤、踝關節超音波骨質密度篩檢T 值為-0.3±2.0；頭前傾角度 平均50.7±13.4 度，駝背角度平均28.5±9.3 度，雙肩角度差平均2.5±2.9 度。脊椎 側彎篩檢出疑似脊椎側彎者，共38 人；經X 光影像檢查確認Cobb 角度大於10 度者，共15 人。障礙級別與頭前傾角度呈顯著正相關（r=0.175, p=0.041）。結論： 本社福機構之智能障礙者，障礙級別愈高、頭前傾角度愈大，且頭前傾及駝背角 度皆較一般族群角度較大，顯示本機構中的智能障礙者存在姿態不良的問題。

Purpose: This study would describe the postural angles of forward head, kyphosis, uneven shoulder level, and scoliosis in persons with intellectual disability in welfare institute. Methods: This was a cross-section study. The study conducted in St. Joseph Social Welfare Foundation in Taiwan Hsinchu. Those with intellectual disability had measured the posture and collected the basic data. We used SPSS 20 to report on the relationship between the postural angles, scoliosis and age, gender, weight, level of disability and bone density. Results: 137 adults with intellectual disability participated (91males and 46 females; mean±SD age 30±9.5 years old; mean±SD weight 58.2±12.5 kg and mean±SD T-score of bone density -0.3±2.0). The average angles of forward head was 50.7±13.4 degree, kyphosis was 28.5±9.3 degree, difference of uneven shoulder level was 2.5±2.9 degree. There were 38 individuals screened out scoliosis by Adam’s test, and 15 among them with Cobb’s angle more than 10 degree by X-ray. Forward head angle was shown significantly positive correlation with disability level (r=0.175, p=0.041). Conclusions: The more severe level of disability, the more serious of forward head angle, and the kyphosis angles were higher than normal people. This study was shown poor posture problems existed in those with intellectual disability in welfare foundation.