Cited by 112Mindfulness and Compassion InterventionsMusculoskeletal pain and rehabilitationDigital Mental Health Interventions

Psychological flexibility and catastrophizing as associated change mechanisms during online Acceptance & Commitment Therapy for chronic pain

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Trompetter, Hester R., Bohlmeijer, Ernst T., Fox, Jean-Paul, Schreurs, Karlein M.G.·2015·Behaviour Research and Therapy

Abstract

The underlying mechanisms of the effectiveness of cognitive behavioural interventions for chronic pain need further clarification. The role of, and associations between, pain-related psychological flexibility (PF) and pain catastrophizing (PC) were examined during a randomized controlled trial on internet-based Acceptance & Commitment Therapy (ACT) for chronic pain. We assessed (1) the unique and combined indirect effects of PF and PC on outcomes, and (2) the causality of relations between PF, PC and the primary outcome pain interference in daily life (MPI) during ACT. A total of 238 pain sufferers were allocated to either ACT, a control condition on Expressive Writing, or a waiting list condition. Non-parametric cross-product of coefficients mediational analyses and cross-lagged panel designs were applied. Compared to control conditions, both baseline to post-intervention changes in PF and PC seemed to uniquely mediate baseline to three-month follow-up changes in pain interference and psychological distress. Only PF mediated changes in pain intensity. Indirect effects were twice as large for PF (κ2 = .09-.19) than for PC (κ² PCS = .05-.10). Further assessment of changes during ACT showed, however, that only PF, and not PC, predicted subsequent changes in MPI, while early and late changes in both PF and PC predicted later changes in each other. In conclusion, only PF functioned as a direct, causal working mechanism during ACT, with larger indirect effects that occurred earlier than changes in PC. Additionally, PC may function as an indirect mechanism of change during ACT for chronic pain via its direct influence on PF.

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  1. Hayes, A. F. (2013b). Introduction to mediation, moderation, and conditional process analysis. New York, NY US: Guilford Press.
  2. Hayes, S. C., Strosahl, K., & Wilson, K. G. (2012). Acceptance & Commitment Therapy: The process and practice of mindful change (2nd. ed.). Guilford Press.

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Authors
Trompetter, H. R., Bohlmeijer, E. T., Fox, J.-P., & Schreurs, K. M. G.
Affiliations
  • University of Twente (NL)
  • Roessingh Research and Development (NL)
Corresponding author
Trompetter, Hester R.
Venue
Behaviour Research and Therapy
Publisher
Elsevier BV
Published
2015-11
Volume
74
Pages
50-59
ISSN
0005-7967 (ISSN-L)
OpenAlex
W1789908247
Cited by
112
References
58
Citations by year
2026: 7 · 2025: 13 · 2024: 6 · 2023: 10 · 2022: 11 · 2021: 13 · 2020: 11 · 2019: 12 · 2018: 8 · 2017: 12 · 2016: 8
FWCI
11.57
Type
journal article
Language
en
Open access
Locations
  • Behaviour Research and Therapy (publishedVersion)
  • PubMed (publishedVersion)
  • University of Twente Research Information (acceptedVersion, other-oa)
  • University of Twente Research Information (submittedVersion)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Mindfulness and Compassion Interventions
  • Health Sciences › Medicine › Pharmacology › Musculoskeletal pain and rehabilitation
  • Social Sciences › Psychology › Applied Psychology › Digital Mental Health Interventions
Keywords
psychological flexibility, pain catastrophizing, acceptance and commitment therapy, online therapy, chronic pain, mechanisms of change, pain interference, psychological distress, pain intensity, expressive writing, mediation analysis
MeSH terms
Adult, Depression, Female, Humans, Male, Middle Aged, Netherlands, Pain Measurement, Surveys and Questionnaires, Cognitive Behavioral Therapy, Treatment Outcome, Telemedicine, Internet, Catastrophization, Chronic Pain, Acceptance and Commitment Therapy

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