Using a web-based intervention to promote weight loss maintenance: A randomized controlled trial

2016 Fiscal Year Final Research Report

• Project/Area Number: 25282203
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Applied health science
• Research Institution: University of Tsukuba
• Principal Investigator: NAKATA Yoshio 筑波大学, 医学医療系, 准教授 (00375461)
• Co-Investigator(Kenkyū-buntansha): 橋本 幸一 筑波大学, 医学医療系, 教授 (80463826) ; 小林 裕幸 筑波大学, 医学医療系, 教授 (70536218)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 肥満 / 減量 / リバウンド / インターネット / 身体活動

Outline of Final Research Achievements

The purpose of this study is to test the effectiveness of a web-based intervention designed to increase physical activity in promoting weight loss maintenance. We conducted a two-phase 27-month randomized controlled trial. In phase 1, a 3-month group-based weight loss program was provided to participants. We randomly assigned (1:1) participants who lost at least 5% weight in phase 1 to the control or intervention groups. Participants in the intervention group regularly report their body weight and physical activity through a web-based system compatible with a weight scale and activity monitor. Study staff provides personalized monthly feedback. The primary outcome is 27-month body weight change. We enrolled 119 eligible participants. In phase 1, 95 participants decreased 5% of the baseline weight and were assigned to the control (n=48) and intervention (n=47) groups. We continued web-based intervention for 24 months and will test the hypothesis in the near future.

Free Research Field

生活習慣病学