本研究的主要目的在探討運動介入對大學女生身體組成的效果。以成功大學體育課程有氧運動興趣選項的女生為對象，從89 學年至91 學年共六個學期，每學期初與學期未進行檢測，蒐集身體組成各項被測資料並加以分析處理，以探討學生在運動介入前後身體組成改變的狀況，作為教學課程設計上的參考。在運動介入的前、後測，結果顯示：（一）身體質量指數方面：89學年、90 學年和91 學年第一學期無顯著差異；而89 學年、90 學年和91 學年第二學期則顯著降低（p< .05）。（二）身體脂肪百分比方面：89 學年第一學期顯著增加、90學年和91 學年第一學期並無顯著差異；而89 學年、90 學年、91 學年第二學期則顯著降低（p< .05）（三）腰臀圍比方面：89 學年第一學期顯著降低；而90 學年、91 學年第一學期和89 學年、90 學年、91 學年第二學期均無顯著差異（p< .05）。結論：透過運動介入可降低身體質量指數和身體脂肪百分比，在第二學期效果較為明顯。

　　The purpose of this study was to investigate the differences between pre- and post-testing of body composition from fall 2000 to spring 2003 semesters. Female National Cheng Kung University students enrolled in aerobic exercise classes were selected. The results of body composition between pre- and post-tests were as follows: 1. In the body mass index (BMI) test, there are significant differences in spring semesters 2001, 2002, and 2003 (p< .05). In fall semesters 2000, 2001, and 2002, there are no significant differences. 2. In the percentage of body fat test, there are significant differences in spring semesters 2001, 2002, and 2003 (p< .05). In fall semesters 2001 and 2002, there are no significant differences. 3. In the Waist-to-Hip ratio (WHR) test, fall 2000 was the only semester that showed a significant difference (p< .05). Conclusion: There are significant differences in the BMI and percentage of body fat tests of female undergraduate students who had exercise intervention in spring semesters 2001-2003, which was superior in fall semesters 2000-2002.