Promoting health behavior change presents an important challenge to theory and research in the field of health psychology. In this paper, we introduce a context-driven approach, the Acceptance and Commitment Therapy (ACT) model which is built on Relational Frame Theory. The ACT-based intervention aims to promote individuals' new health behavior patterns through the improvement of the key construct of psychological flexibility, which is defined as the ability to contact the present moment more fully with acceptance and mindfulness as a conscious human being. Building on the psychological flexibility model, implemented through the six core ACT processes, individuals improve maintenance of long term health behavior change through committed acts in service of chosen values while acknowledging and accepting the existence of contrary thoughts, rules, and emotions as part of themselves but not determinant of their behaviors. Taking advantage of this context-driven approach of health behavior change, we recommend researchers and practitioners to design their health behavior change intervention programs based on ACT.

We previously developed a distress tolerance (DT)-based treatment that showed promising results for smokers with a history of early lapse. In the current study, we conducted a randomized controlled trial of this DT treatment for a general population of smokers not limited to those with a history of early lapse. We randomized 116 participants (41% female) to DT or standard treatment (ST). Both treatments included 1 individual session during Week 1 followed by 7 group sessions during Weeks 2-9 (quit date at Session 4), two 20-min phone sessions, and 8 weeks of transdermal nicotine patch. Results indicated no significant differences between conditions in the primary outcome of biochemically verified 7-day point prevalence smoking abstinence or in time to 1st lapse. Verified abstinence rates in DT were 38.7%, 38.7%, 46.77%, 40.32%, 20.9%, and 17.7% versus 40.7%, 37.0%, 53.7%, 44.4%, 33.3%, and 22.2% in ST at 1, 2, 4, 8, 13, and 26 weeks postquit, respectively. Additionally, we found no significant moderators of treatment efficacy and few differences in treatment process variables. These findings stand somewhat in contrast to those in our previous study and other recent studies of similar acceptance-based treatments. However, differences in methodology, inclusion of nicotine replacement therapy in both treatment conditions, and strict inclusion-exclusion criteria that excluded many smokers with affective vulnerabilities may underlie this discrepancy. Future research should evaluate the utility of DT and other acceptance-based treatments in populations with affective vulnerabilities who might specifically benefit from a DT-based approach. (PsycINFO Database Record

Introduction

An inability to tolerate distress is a significant predictor of early smoking lapse following a cessation attempt. We conducted a preliminary randomized controlled trial to compare a distress tolerance (DT) treatment that incorporated elements of exposure-based therapies and Acceptance and Commitment Therapy to standard smoking cessation treatment (ST).

Methods

Smokers with a history of early lapse in prior quit attempts received either DT (N = 27; 9 2-hr group and 6 50-min individual sessions) or ST (N = 22; 6 90-min group and 1 20-min individual session), plus 8 weeks of transdermal nicotine patch.

Results

At the end of behavioral treatment, odds of abstinence among participants receiving DT were 6.46 times greater than among participants receiving ST (66.7% vs. 31.8%), equivalent to a medium- to large-effect size. Odds of abstinence for DT were still 1.73 times greater at 8 weeks, corresponding to a small- to medium-effect size, although neither this difference nor those at 13 and 26 weeks were statistically significant. Furthermore, of those who lapsed to smoking during the first week postquit, DT participants had more than 4 times greater odds of abstinence than ST participants at the end of treatment. Relative to ST, DT participants also reported a larger decrease in experiential avoidance, a hypothesized DT treatment mediator, prior to quit day. The trajectory of negative mood and withdrawal symptoms in DT differed from ST and was largely consistent with hypotheses.

Conclusions

Reasons for the decrease in abstinence in DT after treatment discontinuation and suggestions for future research are discussed.