Accepted for/Published in: JMIR Cardio
Date Submitted: Oct 11, 2022
Open Peer Review Period: Sep 2, 2022 - Oct 28, 2022
Date Accepted: Mar 23, 2024
(closed for review but you can still tweet)
Effects of a Web-based Weight Management Education Program on Various Factors for Overweight and Obese Women: Randomized Controlled Trial
ABSTRACT
Background:
Mediated diet/exercise methods yield effective short-term weight loss but are costly and hard to manage. However, Web-based programs can serve many participants, offering ease of access and cost-efficiency.
Objective:
This study aimed to compare the effectiveness of a web-based weight management program through Web-based education alone (MINE) or combined with tailored video feedback (MINE Plus) with a control (CO) group.
Methods:
This intervention included 60 Korean women with overweight and obese (BMI≥23 kg/m²) aged 19–39 years old. Sixty participants were randomly allocated to each of three groups: (1) the MINE group (Web-based education video and self-monitoring application), (2) the MINE Plus group (Web-based education video, self-monitoring application, and 1:1 tailored video feedback), and (3) the CO group (only self-monitoring application). Web-based education included nutrition, physical activity, psychological factors, medical knowledge for weight loss, goal-setting, and cognitive/behavioral strategies. Tailored feedback aimed to motivate and provide solutions via weekly 10-minute real-time video sessions. The intervention lasted 6 weeks, followed by a 6-week observation period to assess education's lasting effects, with evaluations at baseline, 6, and 12 weeks. A generalized linear mixed model evaluated time and group interactions.
Results:
In the intention-to-treat analysis including all 60 participants, there were significant differences in weight change at 6 weeks in the MINE and MINE Plus groups with mean weight changes of -0.74±1.96 kg and -1.87±1.8 kg (P=.03, P <.001), respectively, while no significant change was observed in the CO group with a mean weight change of 0.03±1.68 kg (P=.23). After 12 weeks, changes in body weight were -1.65±2.64 kg in the MINE group, -1.59±2.79 kg in the MINE Plus group, and +0.43±1.42 kg in the CO group. There was a significant difference between the MINE and MINE Plus groups (P <.001). Significant group × time effects were found for body weight in the MINE and CO groups (P <.001) and in the MINE Plus and CO groups (P <.001), comparing baseline and 12 weeks. Regarding physical activity and psychological factors, only body type satisfaction and health self-efficacy were associated with improvements in the MINE and MINE Plus groups (P <.001).
Conclusions:
This study found that the group receiving education and tailored feedback showed significant weight loss and improvements in several psychological factors, though there were differences in the sustainability of the effects. Clinical Trial: Korea Disease Control and Prevention Agency (KDCA): https://cris.nih.go.kr/cris/search/detailSearch.do/22861 CRIS Registration Number: KCT0007780
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