本研究之主要目的在探討職場員工之運動行為改變計劃介入對實驗組研究對象之自覺運動利益、自覺運動障礙及運動自我效能的成效。採用「準實驗設計」，實驗組、對照組前後測方式進行。實驗處理是實驗組接受運動行為改變介入計劃活動，而對照組則不接受任何的實驗處理。以立意取樣方式選擇南部某電信公司全體員工為實驗組研究對象。同時，另外選取某通信分公司之全體員工為對照組。本研究根據員工自己參與的意願，進行運動行為計劃之介入，收案資料共有193人，其中實驗組有133人，對照組有60人。研究工具之結構式問卷包括自覺運動利益、自覺運動障礙、運動自我效能及運動階段，統計方法含卡方檢定、配對t檢定、共變數分析、單因子變異數分析及薛費氏事後比較。研究結果發現實驗組在計畫介入後，自覺運動利益及運動自我效能皆顯著高於計畫介入前，而自覺運動障礙顯著低於計畫介入前，但對照組此三者之計畫介入前後結果則無顯著差異。另外，經兩組前測為共變項之共變數分析之後，實驗組後測之「自覺運動利益」及「運動自我效能」分數皆顯著高於對照組後測之分數。而實驗組後測之「自覺運動障礙」分數顯著低於對照組後測之分數。

　　　　　The purpose of this study was to investigate the effects of exercise intervention on improvement of perceived exercise benefit, perceived exercise barrier, and exercise self-efficacy. A quasi- experimental design was utilized and purposive sampling was conducted at a telecom worksite in southern Taiwan. One hundred and ninety-three subjects were assigned to an experimental and a control group. The experimental group, which consisted of 133 subjects, participated in a program of exercise intervention. The intervention program applied a transtheoretical model to aid subjects in developing effective approaches within different stages of the exercise change. It included written materials and teaching activities for the different stages of exercise. The control group, which consisted of 60 subjects, had no treatment. All subjects completed a structured questionnaire, including perceived exercise benefits, perceived exercise barriers, exercise self-efficacy, and stages of exercise, pre-test and post-test. Statistical analyses included Chi-square test, paired t-test, analysis of covariance, one-way ANOVA, and Scheffe's post hoc comparison. After the exercise intervention, the results post-test of the experimental group showed that (1) perceived exercise benefit, perceived exercise barriers, and exercise self-efficacy improved significantly, and (2) perceived exercise benefit and exercise self-efficacy were significantly higher than those of the control group post-test while perceived exercise barriers were significantly lower than those of the control group post-test.