本研究主要在探討青少年健身運動自我效能、流暢經驗、需求滿足感之關係。為達研究目的依據文獻探討分析，採用「青少年健身運動自我效能量表」（蔡俊傑，2010）、「特質性流暢經驗量表」（陳耀棋，2009）、「健身運動需求滿足感量表」（潘哲偉，2010）作為研究工具，並以臺中市國中生為樣本，共抽取934位國中生進行問卷調查。統計分析方式包含兩部分：第一部分為基本資料與研究變項之平均數差異考驗與單因子變異數分析；第二部分為主要分析利用積差相關、逐步迴歸交叉驗證運動自我效能、流暢經驗、需求滿足感之關係。本研究所得之主要結果如下：
一、性別與年級在運動自我效能部份層面有差異存在；健康狀況在運動自我效能具有顯著差異。
二、性別、年級與健康狀況在流暢經驗具有顯著差異。
三、性別在需求滿足感不具有差異存在；年級與健康狀況在需求滿足感具有顯著差異。
四、運動自我效能、流暢經驗、需求滿足感具有顯著正相關。
五、運動自我效能各層面：對流暢經驗可解釋52.4%，具有顯著的解釋力，以運動與生活技能具最高之解釋力；對需求滿足感可解釋59.6%，具有顯著的解釋力，以運動與身體健康具最高之解釋力。

　　The thesis mainly explores the relationship among self-efficacy for exercise, flow experience, and psychological need satisfaction. After doing the literature review, Self-Efficacy for Exercise Scale (Tsai, 2010), Dispositional Flow Scale (Chen, 2008), Psychological Need Satisfaction in Exercise Scale (Pan, 2010) are adopted as research methods in the thesis. 934 junior high school students in Taichung City take part in the questionnaire survey. There are two parts of the statistical analysis of the results of the questionnaires collected. The first part uses T-test and one-way ANOVA to analyze relationship between the background of the participants and variants. The second part mainly uses Pearson correlation and stepwise regression to cross-examine the relationship among self-efficacy for exercise, flow experience, and psychological need satisfaction.
The result of the thesis is as follows:
1.Differences are shown in some aspects of self-efficacy for exercise concerning gender and grade while significant differences are shown in self-efficacy for exercise concerning health.
2.Significant differences are shown in flow experience concerning gender, grade and health.
3.No difference is shown in psychological need satisfaction concerning gender while significant differences are shown in psychological need satisfaction concerning grade and health.
4.Relationship among self-efficacy for exercise, flow experience, and psychological need satisfaction has significant and positive correlation.
5.Self-efficacy for exercise is a significant predicative factor to flow experience (R²=52.4%). Among the self-efficacy for exercise, exercise and life skills is the most significant predicative factor to flow experience. Self-efficacy for exercise is a significant predicative factor to psychological need satisfaction (R²=59.6%). Among the self-efficacy for exercise, exercise and physical health is the most significant predicative factor to psychological need satisfaction.