The Effectiveness of Acceptance and Commitment Therapy on Experiential Avoidance in Overweight Individuals

Aim and Background: Experiential avoidance is a behavior pattern that increases binge eating among overweight and obese individuals. The objective of this study was to investigate the efficacy of acceptance and commitment therapy (ACT) on experiential avoidance among overweight and obese individual...

Full description

Bibliographic Details
Main Authors: سعیده فنایی, ایلناز سجادیان
Format: Article
Language:fas
Published: Armaqan Danesh Firoozeh 2016-12-01
Series:Taḥqīqāt-i ̒Ulūm-i Raftārī
Subjects:
Online Access:http://rbs.mui.ac.ir/article-1-459-en.html
_version_ 1827881885368320000
author سعیده فنایی
ایلناز سجادیان
author_facet سعیده فنایی
ایلناز سجادیان
author_sort سعیده فنایی
collection DOAJ
description Aim and Background: Experiential avoidance is a behavior pattern that increases binge eating among overweight and obese individuals. The objective of this study was to investigate the efficacy of acceptance and commitment therapy (ACT) on experiential avoidance among overweight and obese individuals in Isfahan, Iran. Methods and Materials: The present quasi-experimental research was conducted with a pretest-posttest, double-blind, and multicenter design with control group. The statistical population of the study consisted of all overweight and obese individuals a body mass index (BMI) of more than 25 referring to nutrition and diet therapy clinics in the winter of 2015. From among them, 40 individuals were selected through convenience sampling based on the study criteria and were randomly assigned to the experimental and control groups (each group = 20 individuals). Both groups completed the Acceptance and Action Questionnaire for Weight-Related Difficulties (AAQW) designed by Lillis and Hayes, at pretest, posttest, and follow-up stages (45 days after the intervention). The reliability of the AAQW was calculated using Cronbach&#039;s alpha coefficient (&alpha; = 0.91) and its content validity was confirmed by experts. The experimental group received 8 60-minute sessions of ACT. The control group, however, received no intervention. Data were analyzed using ANCOVA in SPSS software. Findings: There was a significant decrease in experiential avoidance among the experimental group participants (P < 0.05). Moreover, this effect was maintained until the follow-up stage. Conclusions: According to the results, ACT can be considered as an efficient intervention for the reduction of experiential avoidance in overweight and obese individuals. The reduction in experiential avoidance results in the increasing of psychological flexibility in these individuals. Therefore, ACT can be used in conjunction with other weight control interventions.
first_indexed 2024-03-12T18:47:55Z
format Article
id doaj.art-b0ebe1daa997453db884731525d37db7
institution Directory Open Access Journal
issn 1735-2029
2008-8248
language fas
last_indexed 2024-03-12T18:47:55Z
publishDate 2016-12-01
publisher Armaqan Danesh Firoozeh
record_format Article
series Taḥqīqāt-i ̒Ulūm-i Raftārī
spelling doaj.art-b0ebe1daa997453db884731525d37db72023-08-02T07:28:57ZfasArmaqan Danesh FiroozehTaḥqīqāt-i ̒Ulūm-i Raftārī1735-20292008-82482016-12-01142146153The Effectiveness of Acceptance and Commitment Therapy on Experiential Avoidance in Overweight Individualsسعیده فنایی0ایلناز سجادیان1 استادیار، گروه روان‌شناسی بالینی، دانشگاه آزاد اسلامی، واحد اصفهان (خوراسگان)، اصفهان، ایران Aim and Background: Experiential avoidance is a behavior pattern that increases binge eating among overweight and obese individuals. The objective of this study was to investigate the efficacy of acceptance and commitment therapy (ACT) on experiential avoidance among overweight and obese individuals in Isfahan, Iran. Methods and Materials: The present quasi-experimental research was conducted with a pretest-posttest, double-blind, and multicenter design with control group. The statistical population of the study consisted of all overweight and obese individuals a body mass index (BMI) of more than 25 referring to nutrition and diet therapy clinics in the winter of 2015. From among them, 40 individuals were selected through convenience sampling based on the study criteria and were randomly assigned to the experimental and control groups (each group = 20 individuals). Both groups completed the Acceptance and Action Questionnaire for Weight-Related Difficulties (AAQW) designed by Lillis and Hayes, at pretest, posttest, and follow-up stages (45 days after the intervention). The reliability of the AAQW was calculated using Cronbach&#039;s alpha coefficient (&alpha; = 0.91) and its content validity was confirmed by experts. The experimental group received 8 60-minute sessions of ACT. The control group, however, received no intervention. Data were analyzed using ANCOVA in SPSS software. Findings: There was a significant decrease in experiential avoidance among the experimental group participants (P < 0.05). Moreover, this effect was maintained until the follow-up stage. Conclusions: According to the results, ACT can be considered as an efficient intervention for the reduction of experiential avoidance in overweight and obese individuals. The reduction in experiential avoidance results in the increasing of psychological flexibility in these individuals. Therefore, ACT can be used in conjunction with other weight control interventions.http://rbs.mui.ac.ir/article-1-459-en.htmlacceptance and commitment therapy (act)experiential avoidancepsychological flexibilityoverweight
spellingShingle سعیده فنایی
ایلناز سجادیان
The Effectiveness of Acceptance and Commitment Therapy on Experiential Avoidance in Overweight Individuals
Taḥqīqāt-i ̒Ulūm-i Raftārī
acceptance and commitment therapy (act)
experiential avoidance
psychological flexibility
overweight
title The Effectiveness of Acceptance and Commitment Therapy on Experiential Avoidance in Overweight Individuals
title_full The Effectiveness of Acceptance and Commitment Therapy on Experiential Avoidance in Overweight Individuals
title_fullStr The Effectiveness of Acceptance and Commitment Therapy on Experiential Avoidance in Overweight Individuals
title_full_unstemmed The Effectiveness of Acceptance and Commitment Therapy on Experiential Avoidance in Overweight Individuals
title_short The Effectiveness of Acceptance and Commitment Therapy on Experiential Avoidance in Overweight Individuals
title_sort effectiveness of acceptance and commitment therapy on experiential avoidance in overweight individuals
topic acceptance and commitment therapy (act)
experiential avoidance
psychological flexibility
overweight
url http://rbs.mui.ac.ir/article-1-459-en.html
work_keys_str_mv AT sʿydhfnạyy theeffectivenessofacceptanceandcommitmenttherapyonexperientialavoidanceinoverweightindividuals
AT ạylnạzsjạdyạn theeffectivenessofacceptanceandcommitmenttherapyonexperientialavoidanceinoverweightindividuals
AT sʿydhfnạyy effectivenessofacceptanceandcommitmenttherapyonexperientialavoidanceinoverweightindividuals
AT ạylnạzsjạdyạn effectivenessofacceptanceandcommitmenttherapyonexperientialavoidanceinoverweightindividuals