Processes of Change Associated with the Fruit and Vegetable Consumption Across Stages of Change in Women- Application of Transtheoretical Model (original) (raw)
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Nutrition Research and Practice, 2014
BACKGROUND/OBJECTIVES: Understanding individual’s intention, action and maintenance to increase fruit and vegetable intake is an initial step in designing nutrition or health promotion programs. This study aimed to determine stages of change to increase fruit and vegetable intake and its relationships with fruit and vegetable intake, self-efficacy, perceived benefits and perceived barriers. SUBJECTS/METHODS: This cross-sectional study was conducted among 348 public university staff in Universiti Putra Malaysia. A pre-tested self-administered questionnaire and two days 24-hour diet recall were used. RESULTS: Half of the respondents (50%) were in preparation stage, followed by 43% in action/maintenance, 7% in pre-contemplation/contemplation stages. Respondents in action/maintenance stages had significantly higher self-efficacy (F = 9.17, P < 0.001) and perceived benefits (F =5.07, P < 0.01) while respondents in pre-contemplation/contemplation and preparation stages had significantly higher perceived barriers (F = 4.83, P < 0.05). Perceived benefits tend to outweigh perceived barriers pre-ceding to taking action. Self-efficacy is important in motivating individuals to increase fruit and vegetable intake as self-efficacy and perceived barriers crossed over between preparation and action/maintenance. Respondents in action/maintenance stages had the highest adjusted mean serving of fruit and vegetable intake (F = 4.52, P < 0.05) but the intake did not meet recommendation. CONCLUSION: Intervention strategies should emphasize on increasing perceived benefits and building self-efficacy by providing knowledge and skills to consume a diet high in fruits and vegetables in order to promote healthy changes in having high fruit and vegetable intake.
Health Education Research, 2003
Our aim was to investigate the response of participants in different Stage of Change (SOC) groups to an intervention to increase fruit and vegetable consumption. Participants recruited from a primary-care health centre were entered into a trial investigating an intervention to increase fruit and vegetable consumption. A total of 729 men and women were randomized into intervention and control groups. Participants attended two appointments 6 months apart and completed postal questionnaires before each appointment. The questionnaire included SOC questions which were used to classify participants into`pre-contemplation',`contemplation' and`action' groups at baseline and at follow-up. All intervention participants received a standard intervention to increase consumption of fruit and vegetables to at least ®ve portions per day. After 6 months at the end of the trial control participants received the same intervention. The main outcome measures were the changes in plasma concentrations of antioxidant vitamins. Changes in self-reported fruit and vegetable intake were a secondary outcome measure. At baseline, 38% (113/297) of the intervention participants were described as being in the`pre-contemplation' stage, 35% iǹ contemplation' and 27% in`action' groups. For control participants, 36% (112/310) were in`pre-contemplation', 34% in`contemplation' and 30% in`action' groups. In the intervention groups, 50% (57/113) of`pre-contemplators' moved to the`action' stage and 37% (42/113) moved to`contemplation'. There was little movement in the control`SOC' groups between baseline and follow-up, other than a small drift to`contemplation'. Overall, the intervention group reported a greater increase in fruit and vegetable consumption than the controls (mean difference in change of 1.4 daily portions; 95% con®dence interval 1.2, 1.6; after adjustment for baseline intake and gender) and signi®cantly greater changes were reported in all three intervention`SOC' groups compared to the corresponding`control' groups (P < 0.001 in each case). These results suggest that peoples' SOC may have little bearing on their success in increasing fruit and vegetable consumption.
Fruit and Vegetable Consumption Behaviour Model: An Implication for Health Education
STUDIES ON ETHNO-MEDICINE, 2020
It is important to carry out public health education about fruits and vegetables consumption to improve healthy behaviour. This study aims to analyse the effect of perceived severity, perceived susceptibility, subjective norm, attitude, perceived behavioural control (PBC), and the intention to consume fruits and vegetables to the actual consumption of fruits and vegetables. The study used a quantitative research methodology with a survey research design. The survey was conducted in Jakarta, Indonesia. The number of samples of this study was 120 respondents. The researchers utilised some statistical analyses in this study, namely item-to-total correlation, Cronbach á analysis and Structural Equation Modelling (SEM) with Partial Least Square (PLS). This study found that the actual consumption of fruits and vegetables is influenced by perceived severity, perceived severity, attitude, PBC, and the intention to consume fruits and vegetables.
Use of the Transtheoretical Model of Change to Successfully Predict Fruit and Vegetable Consumption
Journal of Nutrition Education, 1998
This study examined the applicability of the transtheoretical model of change to assess readiness to increase fruit and vegetable intake in a nationally representative sample of U.S. adults. Using data from the 1991 5 A Day baseline survey of 281 1 respondents, this study developed an algorithm based in part on responses to fruit and vegetable questions for classifying people into alternative stages of change.Associations were examined between stages of change, fruit and vegetable intake, and demographic and psychosocial factors. Results indicated that individuals can be classified by stage of change vis i vis fruit and vegetable intake. Persons in the higher stages of maintenance reported intakes that met national dietary recommendations of five or more servings of fruit and vegetables daily and those in action reported intakes that approached this level. Regression analyses showed that stages of change were a significant predictor of fruit and vegetable consumption, explaining 17% of the variation in fruit and vegetable intake. Stages of change and knowing the number of fruit and vegetable servings one should eat for good health provided the most parsimonious model, explaining 25% of the variance in total fruit and vegetable intake, compared with 29% for the full model.These findings suggest that stages are a successful predictor of fruit and vegetable consumption and implies a utility for the transtheoretical theory in the design and evaluation of stage-based nutrition messages for chronic disease prevention.
2014
Background and Purpose: To evaluate the effectiveness of two subsequent intervention components (motivational and self-regulatory components), placed in different order, to promote fruit and vegetable (FV) intake. Methods: After baseline assessment, university students (N = 205, aged 18-26 years) were allocated to two groups. One group received a motivational intervention (outcome expectancies, risk perception, and task self-efficacy) followed by a self-regulatory intervention (planning and dietary selfefficacy) after 17 days. The second group received the same intervention conditions in the opposite order. Follow-up assessments were done after another 17 days. Results: Both intervention sequences yielded gains in terms of FV intake and self-efficacy. However, this gain was only due to the self-regulatory component whereas the motivational component did not contribute to the changes. Moreover, changes in intention and self-efficacy mediated between intervention sequence and follow-up behavior, suggesting that improving these proximal predictors of FV intake was responsible for the behavioral gains. Conclusions: Findings highlight the superiority of a self-regulatory intervention over a motivational intervention when it comes to dietary changes in this sample of young adults. Moreover, changes in dietary selfefficacy may drive nutritional changes.
Public Health Nutrition, 2019
Objective:The present study aimed to evaluate the impact of a Transtheoretical Model-based programme titled ‘Fruit & Vegetable-Friendly’ on the fruit and vegetable (F&V) consumption of adolescents.Design:A quasi-experimental study. The ‘Fruit & Vegetable-Friendly’, a multicomponent intervention based on the Transtheoretical Model, was completed in eight weeks. The data were collected one week before the intervention, one week after the completion of the intervention and six months after the post-test with an F&V intake questionnaire and the stages of change, processes of change (α = 0·91), situational self-efficacy (α = 0·91) and decisional balance (α = 0·90 for pros, α = 0·87 for cons) scales. Data were analysed with the Friedman, Wilcoxon and marginal homogeneity tests.Setting:A public secondary school in Istanbul, Turkey.Participants:Seven hundred and two adolescents.Results:The mean (sd) F&V intake of adolescents in the passive stages rose from the daily average at the time of t...
Preventive Medicine, 2005
We have recently shown that brief behavioral counseling based on the stage of change (SOC) model stimulates greater increases in fruit and vegetable intake over 12 months than nutritional education in adults living in a low-income urban area. We tested the hypothesis that behavioral counseling would overcome the greater obstacles to change in precontemplators and contemplators compared with those initially in the preparation stage.
Testing the Assumptions of Stage of Change for Fruit and Vegetable Consumption: A Naturalistic Study
Chronic disease now accounts for 7 of every 10 deaths in the United States and 60% of the nation's health expenditures [1]. Poor nutrition is a substantial contributor to the chronic disease burden, accounting for over 33billioninmedicalcostsand33 billion in medical costs and 33billioninmedicalcostsand9 billion in lost productivity per year [1]. Fortunately, many detriments of chronic disease, such as increased risk for heart disease [2-4], stroke [5, 6], diabetes [7, 8], osteoporosis [9], and cancer [10, 11], can be prevented through adoption of a healthy diet.