Details

Autor(en) / Beteiligte

• Lillis, J.
• Dunsiger, S.
• Thomas, J. G.
• Ross, K. M.
• Wing, R. R.

Titel

Novel behavioral interventions to improve long-term weight loss: A randomized trial of acceptance and commitment therapy or self-regulation for weight loss maintenance

Ist Teil von

• Journal of behavioral medicine, 2021-08, Vol.44 (4), p.527-540

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2021

Quelle

Applied Social Sciences Index & Abstracts (ASSIA)

Beschreibungen/Notizen

• Maintenance of weight loss is hard to achieve, and novel interventions are needed to improve long-term outcomes. In this pilot randomized controlled trial, N = 188 participants received an online, 12-week weight loss intervention and N = 102 who lost ≥ 5% were then randomly assigned to a 1-day, 5-h workshop based on Acceptance and Commitment Therapy (ACT), Self-Regulation (SR), or no workshop (Control) with 3 months of limited email follow-up. Assessments were conducted at baseline, 3, 6, 12, 18, and 24 months. The primary outcome was percent weight change; secondary outcomes were weight-related experiential avoidance and health values-consistent behavior. ACT had greater overall weight loss (−7.18%, SE = 1.33) when compared to Control (−1.15%, SE = 1.50; p  = .03). Post hoc analyses showed that ACT had significantly greater weight losses than Control (6.11%, β = −2.03, p  = .048) among those with lower initial weight loss (5–7%), and significantly greater weight loss than SR (6.19%, β = −1.77, p  = .05) among those with the highest initial weight losses (10% +). There is potential for continuing to develop ACT in a limited interventionist-contact format with modifications. This pilot study represents an innovative model for behavioral weight loss by reversing the typical treatment intensity model with the aim of providing interventionist support during a critical period after initial weight loss. Registration Clinicaltrials.org #NCT02156752 https://www.clinicaltrials.gov/ct2/show/NCT02156752 .