本研究是以期望價值理論探討學童運動參與行為，檢驗身體活動弱勢學童在參與樂活運動站後對運動期望與價值信念的影響為何。透過參與研究者：男生32人、女生27人；實驗組32人、控制組27人之前測、後測為期八週二十四次樂活運動站活動介入之對照比較研究，經由混合設計二因子變異數(Two-way ANOVA)分析加以考驗，發現身體活動能力弱勢學童在樂活運動站活動介入後，能力期望、需求努力、重要他人的期望代價、工作價值、運動價值期望與價值信念顯著提升，同時失敗的心理代價則為顯著降低。

This study is based on the expectancy-value theory to explore the participation of students in acts of exercise and to examine the sports belief of expectancy and value promoted changed of physical fitness disadvantaged students after the exercise at the lohas sports station. The participation in research include: 32 boys, 27 girls; the experimental group 32 students, control group of 27 students. After 24 times (lasting 8 weeks) of the exercise at the lohas sports station, the contrast results between the experimental group and the control group shown by the test of mixed design (Two-way ANOVA) analysis indicated the ability expectancy, the required effort, the expectancy cost from significant others, the task-value, and the sports belief of expectancy and value of physical fitness disadvantaged students are significantly raised；while the psychological cost of failure of physical fitness disadvantaged children are decreased significantly.