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Despite the many benefits of exercise behavior, lack of physical activity is a health problem in college students. A key issue in exercise behavior research is using health behavior models in order to promote and maintain exercise behavior. Previous research has shown that due to the complex and dynamic nature of exercise behavior change, it seems unlikely that a single theoretical approach can truly capture it. The effect of the integrated model of Transtheoretical model and self-determination theory on the promotion and maintenance of exercise behavior among college students. This study was a randomized controlled trial. The experimental group [66 students] received the intervention based on TTM and SDT, and control group [67 students] did not receive any intervention by the researcher. Evaluation was conducted by tools based on the constructs of TTM and SDT as well as METs, before intervention, post intervention and after 8 months. There were no significant differences between the two groups before the intervention regarding the demographic variables, constructs of TTM and SDT and METs. The study findings showed significant differences in the exercise behavior stage of change and METs [P<0.001] between experimental group and control group in the post intervention and follow up evaluation. Also, significant improvement in the exercise behavior stage of change and METs in the experimental group throughout pre, post and follow up intervention was observed [P<0.001]. Education intervention based on an integrated model of transtheoretical model and self-determination theory has effects on the promotion and maintenance of exercise behavior among college students
RESUMO
The main mission of management is accessing more efficient which be taken into care by managers for managing and new engineering. Today human efficient is the most common of managers' concerned. Many factors are effective in promoting human efficient that cannot be identifying all of them. So we have to give an advantage model. Using factor analysis is one of the efficient models. To determine the components of effective manpower productivity, using factor analysis. This Descriptive, analytic and cross -sectional study was performed in two stages: August, September and October 2009 The owners of qualitative step were 45 experts and factor analysis step were 321 faculty members, educational expert and human resources expert who affiliated to Guilan University of Medical Sciences. Data was collected by made questionnaire and Library Studies and Help study. the validity of its content were done as Expert panel and their credit structure using exploratory factor analysis [main component analysis] and confirmatory factor analysis [maximum likelihood], using alpha internal parallelism of Coranbach. The first section of questionnaire contains 8 individual characteristics and demographic questions and the second part includes 42 questions about the variables affecting the productivity of human resources based on 5-degree Likert Scale. For adequacy of sample size Mayraklyn scale and for suitable data, Bartlett test was used respectively. The exploratory analysis identified 5 main components according the importance degree included of: 1. Organizational culture, with 18 variables and variance 26.29% 2. Environmental condition with 7 variables and variance 12.96% 3. Motivation factors with 10 variables and variance 12.84% 4. Empowerment with 4 variables and variance 7.47% 5. Leadership style with 3 variables and variance 5.05%. The organizational culture, environmental conditions, Motivational factors, empowerment and leadership style, are effective factors or increasing manpower productivity. There was a significant relationship between organizational culture and man power productivity which is the most important factors