Abstract
Objective
To investigate the efficacy of motivational interviewing (MI) to elicit change in
eating and physical activity behaviors in women with overweight and obesity before
conception.
Design
A randomized controlled trial was conducted. The participants were randomly divided
into intervention and comparison groups. Data were gathered using the Three-Factor
Eating Questionnaire Revised 18-item version (TFEQ-R18), International Physical Activity
Questionnaire (IPAQ), and Stages of Change checklist.
Setting
Primary health centers of Tabriz, Iran.
Participants
The participants were 70 women with overweight or obesity, aged 18–35 years, who were
referred for preconception care.
Intervention(s)
The intervention group received 6 MI sessions, and the comparison group received routine
preconception care.
Main Outcome Measure(s)
Variables of primary outcomes were eating behavior measures and physical activity
levels 8 weeks after intervention.
Analysis
Independent t test, ANCOVA, Fisher exact test, Mann-Whitney U test, and Wilcoxon test were used.
Results
The MI had a positive effect on physical activity in the moderate and vigorous levels
in the intervention group (P = .01, P = .02, respectively). After the intervention, the mean score of cognitive restraint
in the intervention group was higher than in the comparison group (adjusted mean difference,
16.9; 95% CI, 10.8 to 23.0; P < .001), whereas there were no significant differences between the 2 groups in terms
of emotional and uncontrolled eating (P = .33 and P = .25, respectively).
Conclusions and Implications
The MI had a positive effect on physical activity and eating behavior change, except
for uncontrolled and emotional eating. Future studies to examine differences between
overweight and women with obesity and within other populations is warranted.
Key Words
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Article info
Publication history
Published online: June 24, 2020
Accepted:
April 27,
2020
Footnotes
Conflict of Interest Disclosure: The authors have not stated any conflicts of interest.
Identification
Copyright
© 2020 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.
