本研究為橫斷式調查,研究期間為2008年11月5日至12月5日,研究工具以自擬式結構性問卷為主,調查青少年夜間腿部抽筋盛行率與相關因子,收集嘉義地區某高職學校學生共1018份問卷,資料編碼後輸入電腦以SPSS 12.0 for Windows中文版軟體進行處理,以羅吉斯迴歸與線性迴歸統計分析。調查結果發現,有64.0%的女性與63.6%的男性有夜間腿部抽筋的經驗,其中體重(p<0.001)、維生素E (p<0.001)以及維生素B1 (p=0.004)對於有無夜間腿部抽筋有顯著性相關,身體活動量指數對於有無夜間腿部抽筋則無顯著性相關;菸鹼素(niacin)對於一個月內抽筋次數有顯著性相關(p=0.001);肥胖組對於疼痛程度指數(p<0.001)、每次持續時間(p=0.023)以及抽筋指數(p<0.001)皆有顯著性相關。本研究也發現調查學生當時與追溯前一個學期時距之身高變化量對於不抽筋與抽筋頻繁有顯著性相關(p=0.006)。因此,高職學生之夜間腿部抽筋情形與身體肥胖以及青春期之身高發展有關。 The present cross-sectional survey study used self-administered questionnaires to investigate the prevalence of and factors associated with nocturnal leg cramps (NLCs) among adolescents. A total of 1018 adolescents studying at a vocational high school in Chiayi County, Taiwan were recruited into the study during the period from November 5 to December 5, 2008. Logistic regression and linear regression were conducted using the Chinese version of SPSS ver. 12.0 for Windows Results showed that 64.0% of the females and 63.6% of the males had experienced NLCs. Body weight (p<0.001), vitamin E (p<0.001), and vitamin B1 (p=0.004) were significantly associated with NLCs. However, physical activity score was not associated with NLCs. The frequency of NLCs in the last month were significantly associated with intake of niacin (p=0.001). Obesity was significantly associated with intensity of NLCs (p<0.001), duration of NLCs (p=0.023), and cramp score (p<0.001). Changes in height between the time of research and the last semester were significantly associated with the frequency of NLCs (p=0.006). Therefore, obesity and growth spurt during puberty were associated with NLCs among vocational high school students.