A randomized trial of sequential and simultaneous multiple behavior change interventions for physical activity and fat intake

Vandelanotte, Corneel, Reeves, Marina M., Brug, Johannes and De Bourdeaudhuij, Ilsa (2008) A randomized trial of sequential and simultaneous multiple behavior change interventions for physical activity and fat intake. Preventive Medicine, 46 3: 232-237. doi:10.1016/j.ypmed.2007.07.008


Author Vandelanotte, Corneel
Reeves, Marina M.
Brug, Johannes
De Bourdeaudhuij, Ilsa
Title A randomized trial of sequential and simultaneous multiple behavior change interventions for physical activity and fat intake
Journal name Preventive Medicine   Check publisher's open access policy
ISSN 0091-7435
1096-0260
Publication date 2008-03-01
Year available 2007
Sub-type Article (original research)
DOI 10.1016/j.ypmed.2007.07.008
Open Access Status Not Open Access
Volume 46
Issue 3
Start page 232
End page 237
Total pages 6
Editor A. Morabia
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Language eng
Subject 321216 Health Promotion
730301 Health education and promotion
1117 Public Health and Health Services
1199 Other Medical and Health Sciences
Formatted abstract
Background:
Major questions remain unanswered about how best to accomplish multiple behavior change. The purpose of this study was to evaluate whether there are differences in successfully changing multiple behaviors in computer-tailored sequential and simultaneous interventions for physical activity (PA) promotion and fat intake (FI) reduction.

Methods:
Participants (N = 567) were randomly assigned to receive an intervention for PA and FI simultaneously; PA at baseline and FI at 3 months; or FI at baseline and PA at 3 months. Successful behavior change at 6 months was defined as: > 60 min PA increase and/or 5% FI reduction. Using multinomial logistic regression the odds ratios of successful behaviors change (none, PA only, FI only, or both) were determined for intervention mode, gender, age, BMI and education.

Results:
Overall drop-out was 26%. There was no behavior change for 20.2% of participants; 30.5% successfully decreased FI; 15.8% successfully increased PA; 33.5% successfully changed both behaviors. Intervention mode, gender and age were not associated with successful behavior change. Compared to those that did not change any behaviors: participants that successfully changed FI were more likely to be overweight/obese (OR = 1.85); and participants that successfully changed both behaviors were more likely to be overweight/obese (OR = 2.13) and have lower education (OR = 2.46).

Conclusions:
Success in changing multiple behaviors was not associated with intervention mode; both simultaneous and sequential interventions can be applied. Being overweight might be an extra motivator to change health behaviors.
Keyword Multiple health behaviors
Intervention study
Population health
Physical activity
Fat intake
Simultaneous
Sequential
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 17 July 2007.

 
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Created: Sat, 29 Mar 2008, 03:02:50 EST