摘要 本研究的目的主要是探討國中學生中重度身體活動量、運動階段及其相關因素。採橫斷式調查法,立意取樣的方式,以台北市立士林國中九十一學年度第一學期,一、二、三年級全體在學學生為母群體,分層集束抽樣法進行抽樣,依年級將學生分為三組,三組共抽出24班,有效樣本共計701人。施測時間為民國91年10月1日至92年1月10日,以自填問卷法施測,得有效問卷701份。資料以百分比、平均值、t考驗、卡方檢定、單因子變異數分析、薛費氏事後檢定及多元迴歸等方法進行分析。重要結果歸納如下: 一、研究對象的中重度身體活動量,因個人背景因素中的性別、年級、參與運動社團等因素而有顯著的差異,與心理學因素、社會文化因素和環境因素有顯著相關。 二、研究對象假日所從事的中重度身體活動頻率較平時多,且其中以類似打棒(壘)球、排球、桌球、保齡球、騎腳踏車等的休閒活動居多。 三、研究對象運動階段分佈以準備期最多,維持期次之,沉思期最少。運動階段因個人背景因素中之性別、年級、參與運動社團、心理學因素、社會文化因素和環境因素等而有顯著的差異。 四、研究對象維持期的相對中重度身體活動量顯著高於前沉思期、沉思期、準備期和行動期者。 五、研究對象中重度身體活動量之重要預測變項為個人背景因素中的性別、參與運動社團;心理因素中的運動自我效能、運動享樂感;社會文化因素的角色楷模、社會支持和環境因素的環境運動場所。所有變項共可解釋相對中重度身體活動量35 ﹪的變異量,並以性別最具預測力。
The Moderate-Vigorous Physical Activity and Stage of Exercise Behavior and its Influential Determinants of Students in a Secondary School Abstract The main purpose of this study was to investigate the relationship between the physical activity and stage of exercise behavior and its influential determinants of junior students in Taipei City. By using a stratified cluster sampling method and ch- osen randomly, 701 of the valid samples were collected with a self - administrated questionnaires. Descriptive statistics, Chi-square test, t-test, One-way ANOVA, Scheffe Post Hoc tests, Pearson’s product-monent and Multiple Regression were used to analyze the data. The results were followed: 1.The gender, grade and participated in exercise team of the subjects have a signific- ant effect on moderate-vigorous physical activity. The moderate-vigorous phys- ical activity of junior students had significant relationship with psychological variables, social cultural variables and environmental variables. 2.The junior students involved more in moderate-vigorous physical activities on weekend leisure time than that on weekday. The more popular activities were playing baseball, soft baseball, volleyball, table tennis, ten pins bowling , and riding bicycle. 3. Percentage distribution of the sample across the stages was: precontemplation , 13% (n =91); contemplation, 11.4% (n = 79); preparation , 43% (n = 299) ; action,13.6% (n = 96); and maintenance, 19% (n = 136). One-way ANOVA showed that there were significant differences between students’stages of exercise behavior and gender , grade, participated in exercise team, psychological variables, social cultural variables and environmental variables. 4. The moderate-vigorous physical activity of subjects in maintenance stages of exercise were more than who in other stages. 5.Gender, sport team membership, self-efficacy, physical activity enjoyment, exe- rcise role model, exercise social support, use computer on weekend and enviro- nmental facilities were significant predictors of moderate-vigorous physical acti- vity of junior students. The 35﹪variance of physical activity could be explained by demographic characteristics, psychological variables, social cultural variables and environmental variables. Gender was the most important predictors of mode- rate -vigorous physical activity of subjects.