@article{oai:tsukuba.repo.nii.ac.jp:00032144,
 author = {中田, 由夫 and 岡田, 昌史 and 橋本, 幸一 and 原田, 義則 and 曽根, 博仁 and 田中, 喜代次 and Nakata, Y. and Okada, M. and Hashimoto, K. and Harada, Y. and Sone, H. and Tanaka, K.},
 issue = {6},
 journal = {Obesity facts : the European journal of obesity},
 month = {Dec},
 note = {Objective: Our previous study, a 6-month randomised controlled trial, demonstrated that a group-based support promoted weight loss as compared to an education-only intervention. The purpose of this study was to examine weight loss maintenance for 2 years. 
Methods: Originally, 188 overweight Japanese adults, aged 40-65 years, were randomly assigned to 3 groups: control, education-only or group-based support. After the 6-month intervention, 125 participants in the education-only and the group-based support groups were followed up for 2 years. The primary outcome was the amount of weight lost. The participants were retrospectively grouped into quartiles of percent weight loss for secondary analyses. 
Results: At the end of follow-up, the amount of weight lost in the education-only and the group-based support groups was the same (3.3 kg). Secondary analyses using data of those who completed the study (n = 100) revealed that the participants in the highest quartile of percent weight loss significantly increased their step counts and moderate-to-vigorous physical activity compared with the lowest quartile. No significant differences were observed in the energy intake among the four groups. 
Conclusion: The effects of group-based support disappear within 2 years. Increasing physical activity may be a crucial factor for successful maintenance of weight loss.},
 pages = {376--387},
 title = {Weight Loss Maintenance for 2 Years after a 6-Month Randomised Controlled Trial Comparing Education-Only and Group-Based Support in Japanese Adults},
 volume = {7},
 year = {2014}
}