Volume 12, Issue 2 (winter 2026)
IJRN 2026, 12(2): 126-134 |
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adibnia S, pashang S, Tajari B, Kalhornia Golkhar M. Predicting Chronic Pain in Patients With Knee Pain: The Role of Catastrophic Fear and Pain Adaptation. IJRN 2026; 12 (2) :126-134
URL: http://ijrn.ir/article-1-980-en.html
URL: http://ijrn.ir/article-1-980-en.html
Department of Psychology, Ka.C, Islamic Azad University, Karaj, Iran. Sarahpashang@yahoo.com
Abstract: (83 Views)
Introduction: Knee pain is one of the most common causes of mobility disability in adults and, with wide-ranging physical and psychological consequences, markedly reduces quality of life and everyday participation. The present study aimed to develop a predictive model of chronic pain based on pain adaptation, with self-control as a mediating factor, in patients with knee pain.
Methods: This study was descriptive–correlational, used a structural equation modelling approach, and, in terms of purpose, was applied research. The statistical population comprised all patients with knee pain presenting to Milad Hospital in Tehran. Using purposive sampling, 250 participants were selected. Research instruments included the Pain Adaptation Questionnaire by Vowles and McCracken (2012), the Chronic Pain Grade Questionnaire by Von Korff et al. (1990), and the Self-Control Scale by Tangney et al. (2004). Path analysis and AMOS software were used for statistical analysis.
Results: The structural model provided a good fit to the collected data. The research hypotheses were confirmed, and self-control had an indirect effect and a mediating role in the relationship between pain adaptation and chronic pain in patients with knee pain. Accordingly, the hypothesized indirect relationship between pain catastrophizing and pain adaptation and chronic pain was confirmed with 99% confidence (p < 0.01). The direct relationship between self-control and chronic pain was also confirmed at the 99% confidence level. Thus, as self-control increases in patients with knee pain, the severity of chronic pain decreases.
Conclusion: Based on these findings, strengthening self-control skills and implementing interventions to enhance pain adaptation can be effective clinical strategies in treatment programs for patients with knee pain.
Methods: This study was descriptive–correlational, used a structural equation modelling approach, and, in terms of purpose, was applied research. The statistical population comprised all patients with knee pain presenting to Milad Hospital in Tehran. Using purposive sampling, 250 participants were selected. Research instruments included the Pain Adaptation Questionnaire by Vowles and McCracken (2012), the Chronic Pain Grade Questionnaire by Von Korff et al. (1990), and the Self-Control Scale by Tangney et al. (2004). Path analysis and AMOS software were used for statistical analysis.
Results: The structural model provided a good fit to the collected data. The research hypotheses were confirmed, and self-control had an indirect effect and a mediating role in the relationship between pain adaptation and chronic pain in patients with knee pain. Accordingly, the hypothesized indirect relationship between pain catastrophizing and pain adaptation and chronic pain was confirmed with 99% confidence (p < 0.01). The direct relationship between self-control and chronic pain was also confirmed at the 99% confidence level. Thus, as self-control increases in patients with knee pain, the severity of chronic pain decreases.
Conclusion: Based on these findings, strengthening self-control skills and implementing interventions to enhance pain adaptation can be effective clinical strategies in treatment programs for patients with knee pain.
Type of Study: Research |
Subject:
Psychology in Rehabilitation Nursing
Received: 2025/09/28 | Accepted: 2026/02/4 | Published: 2026/03/3
Received: 2025/09/28 | Accepted: 2026/02/4 | Published: 2026/03/3
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