本研究旨在瞭解臨床護理人員的身體活動量，以及個人背景因素和社會心理因素對其身體活動的影響情形。研究採橫斷式調查法，以台北市立醫院之護理長、全職護理師、護士為研究對象，採分層隨機抽樣法，共發出問卷400份，回收360份，有效問卷300份，有效回收率為75%。利用結構式問卷收集資料，所得資料以皮爾森積差相關、獨立樣本t檢定、單因子變異數分析、逐步迴歸等統計方法進行分析。重要結果如下：

一、研究對象上班日的身體活動能量消耗比不上班日之身體活動能量消耗為高，非上班日之運動量不足。上班日的身體活動量55.8kcal/kg/day，中重度身體活動量為15.0kcal/kg/day；非上班日的身體活動量43.0kcal/ kg/day，中重度身體活動量4.6kcal/kg/day；三日身體活動量47.2kcal/ kg/day，中重度身體活動量為8.0kcal/kg/day。
二、研究對象之個人背景因素對於自覺運動利益或自覺運動障礙均未達顯著差  異性；影響運動自我效能的因素為年齡與職稱，其中30-39歲年齡層、護理師、護士對於運動的把握程度較低。
三、影響研究對象身體活動量的個人背景因素為輪班狀況、教育程度與婚姻狀況，需輪三班工作者、職校及專科學歷者、已婚者之身體活動量較高。影響中重度身體活動量的因素為輪班狀況、工作單位、職稱與教育程度。
四、研究對象之運動社會心理因素與身體活動量的相關性，以運動自我效能最為顯著。非上班日之中重度身體活動量受到自覺運動障礙因素之影響較大，而自覺運動利益方面對於身體活動量的相關性則不顯著。
五、研究對象有高度的自覺運動利益，認為運動能促進血液循環、促進身體健康、增加柔軟度、促進新陳代謝、增強體能、保持年輕的運動利益得分最高。
六、研究對象自覺運動障礙屬於中等程度，障礙較大因素為偷懶、時間不夠、天候不佳、工作繁重、需輪班工作、健康狀況不佳及體力不足。
七、研究對象的運動自我效能為中低程度，對於工作繁重、健康狀況不佳、偷懶、時間不夠、體力不足、家庭需要照顧、天候不佳及需輪班工作等情境，運動把握程度較低。
八、輪班狀況、運動自我效能、婚姻狀況為上班日身體活動量的重要預測變項，此三個變項可解釋10%的變異量。運動自我效能、婚姻狀況、教育程度為非上班日及三日身體活動量的重要預測變項，可解釋非上班日8.7%的變異量，三日身體活動量11.4% 之變異量。中重度身體活動量方面，上班日最重要影響因素為輪班狀況，其次為運動自我效能，此兩個變項可解釋8.3%的變異量。影響非上班日中重度身體活動量的因素為運動自我效能與婚姻狀況，此兩個變項可解釋7.1%的變異量。三日平均之中重度身體活動量，則以運動自我效能、輪班狀況以及教育程度之影響最為顯著，此三個變項可解釋9.9%的變異量。

The purpose of this research is to understand physical activity of clinical nurses, and the affecting circumstance of personal background factors and social psychological factors on physical activity. The research utilized the cross-sectional design, to base on nurses of Taipei Municipal Hospital as the research samples. The study utilized randomly-selected sampling, to totally issue 400 copies of questionnaire, retrieving 360 copies, with 300 copies of effective questionnaire. The effective retrieving ratio is 75%. Data analyses include Pearson product-moment correlation, t-test, one-way ANOVA, stepwise regression analyses. The main results are shown as followed:

1. Energy expenditure of physical activity during the weekday is higher than energy       expenditure of the physical activity on the weekend day. Physical activity is insufficient on the weekend day. Energy expenditure of physical activity during the weekday is 55.8kcal/kg/day, moderate and vigorous physical activity is 15.0kcal/kg/day; physical activity on weekend day is 43.0kcal/kg/day, moderate and vigorous physical activity is 4.6kcal/kg/day; the average of physical activity on both weekday and weekend day is 47.2kcal/kg/day, the average of moderate and vigorous physical activity is 8.0kcal/kg/day.
2. The personal background factors with regards to the perceived benefits of exercise or perceived barriers to exercise has not achieve significant difference, age and professional position are the factors that affect self-efficacy for exercise, from which the age group of 30 to 39, registered professional nurses, and nurses with regards to exercise has lower level of self-efficacy.
3. The personal background factors that affect energy expenditure of physical activity are the work shift, educational level, and marital status, those who needs to take turn for three shifts, those of vocational high school, junior college, and those who are married, have higher energy expenditure of physical activity. The factors that affect moderate and vigorous physical activity are the work shift, work unit, professional position and educational level.
4. The correlation of social psychological factors and physical activity, the self-efficacy for exercise is the most significant. Moderate and vigorous physical activity on weekend day has received greater affect by the perceived barriers to exercise. Yet, perceived benefits have no significant in correlating with regards to physical activity.
5. The research object has higher level of perceived benefits of exercise, believing that exercise can enhance blood circulation, enhancing physical health, increasing flexibility and promoting metabolism, strengthening physical fitness, and maintaining youthfulness through benefits of exercise, which have all scored the highest.
6. The perceived barriers to exercise of the research object belongs to moderate level, the factor of barrier is mostly because of slacking off, insufficient time, bad weather, heavy work loading, needing of work shift, bad health condition and not enough physical strength.
7. The self-efficacy of the research object is in low to middle level, which has lower degree of self-efficacy for exercise with heavy work loading, bad health condition, slacking off, insufficient time, insufficient physical fitness, the necessary of family care, bad weather, and work shift.
8. Work shift, self-efficacy for exercise and marital status are the important predicted variance of weekday’s physical activity, these three variables can be explained as 10% of the variation of physical activity. Self-efficacy for exercise, marital status, and educational level are the important predicted variances for physical activity on the weekend day and the average of the weekday and weekend day, which can be explained as 8.7% of the variation of physical activity for the weekend day, 11.4% of the variation of physical activity during the average of the weekday and weekend day. In moderate and vigorous physical activity, the most important affecting factor are work shift, then self-efficacy for exercise, these two variance can be explained as 8.3% of the variation, the factors that affecting the moderate and vigorous physical activity on the weekend day are self-efficacy for exercise and marital status. These two variables can be explained as 7.1% of the variation. The average of moderate and vigorous physical activity on the weekday and weekend day, is based on the affect of self-efficacy for exercise, work shift and educational level as the most significant, these three variances can be explained as 9.9% of the variation.