Inducing positive emotions to reduce chronic pain: a randomized controlled trial of positive psychology exercises

Broadening the Scope of Resilience in Chronic Pain: Methods, Social Context, and Development

PURPOSE OF REVIEW

A wellspring of new research has offered varying models of resilience in chronic pain populations; however, resilience is a multifaceted and occasionally nebulous construct. The current review explores definitional and methodological issues in existing observational and clinical studies and offers new directions for future studies of pain resilience.

RECENT FINDINGS

Definitions of pain resilience have historically relied heavily upon self-report and from relatively narrow scientific domains (e.g., positive psychology) and in narrow demographic groups (i.e., Caucasian, affluent, or highly educated adults). Meta-analytic and systematic reviews have noted moderate overall quality of resilience-focused assessment and treatment in chronic pain, which may be attributable to these narrow definitions. Integration of research from affiliated fields (developmental models, neuroimaging, research on historically underrepresented groups, trauma psychology) has the potential to enrich current models of pain resilience and ultimately improve the empirical and clinical utility of resilience models in chronic pain.

Benefits, Recruitment, Dropout, and Acceptability of the Strength Back Digital Health Intervention for Patients Undergoing Spinal Surgery: Nonrandomized, Qualitative, and Quantitative Pilot Feasibility Study

BACKGROUND

Patients undergoing spinal surgery report high levels of insecurity, pain, stress, and anxiety before and after surgery. Unfortunately, there is no guarantee that surgery will resolve all issues; postsurgical recovery often entails moderate to severe postoperative pain, and some patients undergoing spinal surgery do not experience (long-term) pain relief after surgery. Therefore, focusing on sustainable coping skills and resilience is crucial for these patients. A digital health intervention based on acceptance and commitment therapy (ACT) and positive psychology (PP) was developed to enhance psychological flexibility and well-being and reduce postsurgical pain.

OBJECTIVE

The objective of this study was 3-fold: to explore the potential benefits for patients undergoing spinal surgery of the digital ACT and PP intervention Strength Back (research question [RQ] 1), explore the feasibility of a future randomized controlled trial in terms of recruitment and dropout (RQ 2), and assess the acceptability of Strength Back by patients undergoing spinal surgery (RQ 3).

METHODS

We used a nonrandomized experimental design with an intervention group (n=17) and a control group (n=20). To explore the potential benefits of the intervention, participants in both groups filled out questionnaires before and after surgery. These questionnaires included measurements of pain intensity (Numeric Pain Rating Scale), pain interference (Multidimensional Pain Inventory), anxiety and depression (Hospital Anxiety and Depression Scale), valued living (Engaged Living Scale), psychological flexibility (Psychological Inflexibility in Pain Scale), and mental well-being (Mental Health Continuum-Short Form). Semistructured interviews combined with log data and scores on the Twente Engagement With eHealth Technologies Scale were used to assess the acceptability of the intervention.

RESULTS

A significant improvement over time in emotional (V=99; P=.03) and overall (V=55; P=.004) well-being (Mental Health Continuum-Short Form) was observed only in the intervention group. In addition, the intervention group showed a significantly larger decline in pain intensity (Numeric Pain Rating Scale) than did the control group (U=75; P=.003). Of the available weekly modules on average 80% (12/15) was completed by patients undergoing spinal fusion and 67% (6/9) was completed by patients undergoing decompression surgery. A total of 68% (17/25) of the participants used the intervention until the final interview. Most participants (15/17, 88%) in the intervention group would recommend the intervention to future patients.

CONCLUSIONS

This pilot feasibility study showed that combining ACT and PP in a digital health intervention is promising for patients undergoing spinal surgery as the content was accepted by most of the participants and (larger) improvements in pain intensity and well-being were observed in the intervention group. A digital intervention for patients undergoing (spinal) surgery can use teachable moments, when patients are open to learning more about the surgery and rehabilitation afterward. A larger randomized controlled trial is now warranted.

Mediation effect of hope on the relationship between inner strength and self-management in patients after percutaneous coronary intervention

Background

Effective self-management can enhance a patient's quality of life and delay disease progression. However, motivating patients to adhere to self-management behavior following percutaneous coronary intervention (PCI) remains a challenge. With the robust development of positive psychology and interdisciplinary research, the role of psychology factors in patients' health behavior has increasingly garnered attention. This study, focusing on positive psychological qualities, aims to investigate the relationship between inner strength, hope, and self-management in patients post-PCI, and to analyze the mediating role of hope between inner strength and self-management.

Methods

A cross-sectional survey was conducted among 216 PCI patients from a tertiary hospital in Nanjing. Research instruments included a self-designed general information questionnaire, the Inner Strength Scale (ISS), the Herth Hope Index (HHI), and the Coronary Self-Management Scale (CSMS). T-test, analysis of variance, Pearson's correlation analysis, and mediating effect test were utilized for statistical analysis.

Results

The average scores of the ISS, HHI, and CSMS were 81.46 ± 12.00, 35.94 ± 5.38, and 86.79 ± 14.84, respectively. Inner strength was positively correlated with hope and self-management (r = 0.867, r = 0.630, respectively; all P < 0.05), and hope was positively correlated with self-management (r = 0.671, P < 0.05). Moreover, hope had a complete mediating effect between inner strength and self-management (β = 0.630, P < 0.01).

Conclusion

The inner strength, hope, and self-management of patients with PCI are at a moderate level. Inner strength primarily influences patients' self-management behavior through hope, suggesting that medical staff can target hope to help patients build confidence in life after illness, form and accumulate inner strength, thereby promoting their self-management and improving prognosis.

Incorporating personal narratives in positive psychology interventions to manage chronic pain

In this perspective paper, we argue for incorporating personal narratives in positive psychology interventions for chronic pain. Narratives refer to the telling and retelling of events. Narratives detail accounts of events and provide rich, in-depth information on human interactions, relationships, and perspectives. As such, narratives have been used to understand people's experiences with pain and pain coping mechanisms-as well as to facilitate therapeutic outcomes. Furthermore, narrative research has shown that narration can help restore and promote relief, calm, hope, self-awareness, and self-understanding in chronic pain sufferers. Positive psychology interventions have been successful in improving the lives of people living with chronic pain, but these psychology interventions do not typically incorporate personal narratives. Still, narrative, and positive psychology scholarship foci overlap, as both aim to enhance people's quality of life, happiness, and well-being, and to promote the understanding of psychosocial strengths and resources. In this article, we provide a rationale for incorporating personal narratives as an agentic form of positive psychology intervention. To that aim, we outline areas of convergence between positive psychology and narrative research and show how combining positive psychology exercises and narration can have additive benefits for pain sufferers. We also show how integrating narration in positive psychology intervention research can have advantages for healthcare research and policy.

Refocusing of Attention on Positive Events Using Monitoring-Based Feedback and Microinterventions for Patients With Chronic Musculoskeletal Pain in the PerPAIN Randomized Controlled Trial: Protocol for a Microrandomized Trial

BACKGROUND

Chronic musculoskeletal pain (CMSP) affects between 13% and 47% of the population, with a global growth rate of 20.3% within the last 15 years, suggesting that there is a high need for effective treatments. Pain diaries have long been a common tool in nonpharmacological pain treatment for monitoring and providing feedback on patients' symptoms in daily life. More recently, positive refocusing techniques have come to be used, promoting pain-free episodes and positive outcomes rather than focusing on managing the pain.

OBJECTIVE

This study aims to evaluate the feasibility (ie, acceptability, intervention adherence, and fidelity) and initial signals of efficacy of the PerPAIN app, an ecological momentary intervention for patients with CMSP. The app comprises digitalized monitoring using the experience sampling method (ESM) and feedback. In addition, the patients receive 3 microinterventions targeted at refocusing of attention on positive events.

METHODS

In a microrandomized trial, we will recruit 35 patients with CMSP who will be offered the app for 12 weeks. Participants will be prompted to fill out 4 ESM monitoring questionnaires a day assessing information on their current context and the proximal outcome variables: absence of pain, positive mood, and subjective activity. Participants will be randomized daily and weekly to receive no feedback, verbal feedback, or visual feedback on proximal outcomes assessed by the ESM. In addition, the app will encourage participants to complete 3 microinterventions based on positive psychology and cognitive behavioral therapy techniques. These microinterventions are prompts to report joyful moments and everyday successes or to plan pleasant activities. After familiarizing themselves with each microintervention individually, participants will be randomized daily to receive 1 of the 3 exercises or none. We will assess whether the 2 feedback types and the 3 microinterventions increase proximal outcomes at the following time point. The microrandomized trial is part of the PerPAIN randomized controlled trial (German Clinical Trials Register DRKS00022792) investigating a personalized treatment approach to enhance treatment outcomes in CMSP.

RESULTS

Approval was granted by the Ethics Committee II of the University of Heidelberg on August 4, 2020. Recruitment for the microrandomized trial began in May 2021 and is ongoing at the time of submission. By October 10, 2022, a total of 24 participants had been enrolled in the microrandomized trial.

CONCLUSIONS

This trial will provide evidence on the feasibility of the PerPAIN app and the initial signals of efficacy of the different intervention components. In the next step, the intervention would need to be further refined and investigated in a definitive trial. This ecological momentary intervention presents a potential method for offering low-level accessible treatment to a wide range of people, which could have substantial implications for public health by reducing disease burden of chronic pain in the population.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/43376.

Positive psychology interventions can improve mental health for chronic pain patients: a systematic review and meta-analysis

OBJECTIVE

This study examines the efficacy of positive psychology interventions (PPIs) for patients with chronic pain through a systematic review and meta-analysis. PPIs are defined as strategies that involve focusing on positive emotions, thoughts, and behaviors that improve mental health by increasing mental well-being and reducing psychological distress.

DESIGN

The search was conducted using the PubMed, Scopus, PsycINFO, and Cochrane Library databases.

MAIN OUTCOME MEASURES

Subjective, psychological, and social well-being were used as indicators of mental well-being, and depression, anxiety, and stress symptoms were used as indicators of psychological distress. Results: Nine studies were included. Eight studies evaluated subjective well-being, seven evaluated depression, and three evaluated anxiety symptoms. No studies examined psychological well-being, social well-being, or stress. PPIs were found to be effective in promoting subjective well-being post-treatment (Hedges' g = 0.40; 95% CI [0.06, 0.73]) and reducing anxiety (Hedges' g = -0.32, 95% CI [-0.59, -0.06]), but no significant results were found for depression (Hedges' g = -0.23, 95% CI [-0.50, 0.04]).

CONCLUSION

The included investigations, while limited, suggest the utility of PPIs in mitigating the psychological consequences of chronic pain. Researchers and practitioners are encouraged to implement PPI practices.

Shifting the perspective: how positive thinking can help diminish the negative effects of pain

OBJECTIVES

The field of pain psychology has taken significant steps forward during the last decades and the way we think about how to treat chronic pain has radically shifted from a biomedical perspective to a biopsychosocial model. This change in perspective has led to a surge of accumulating research showing the importance of psychological factors as determinants for debilitating pain. Vulnerability factors, such as pain-related fear, pain catastrophizing and escape/avoidant behaviours may increase the risk of disability. As a result, psychological treatment that has emerged from this line of thinking has mainly focused on preventing and decreasing the adverse impact of chronic pain by reducing these negative vulnerability factors. Recently, another shift in thinking has emerged due to the field of positive psychology, which aims to have a more complete and balanced scientific understanding of the human experience, by abandoning the exclusive focus on vulnerability factors towards including protective factors.

METHODS

The authors have summarised and reflected on the current state-of-the-art of pain psychology from a positive psychology perspective.

RESULTS

Optimism is an important factor that may in fact buffer and protect against pain chronicity and disability. Resulting treatment approaches from a positive psychology perspective are aimed at increasing protective factors, such as optimism, to increase resilience towards the negative effects of pain.

CONCLUSIONS

We propose that the way forward in pain research and treatment is the inclusion of both vulnerability and protective factors. Both have unique roles in modulating the experience of pain, a finding that had been neglected for too long. Positive thinking and pursuing valued goals can make one's life gratifying and fulfilling, despite experiencing chronic pain.

Assessing the Feasibility of a Multimodal Approach to Pain Evaluation in Early Stages after Spinal Cord Injury

This research evaluates the feasibility of a multimodal pain assessment protocol during rehabilitation following spinal cord injury (SCI). The protocol amalgamates clinical workup (CW), quantitative sensory testing (QST), and psychosocial factors (PSF) administered at 4 (T1), 12 (T2), and 24 (T3) weeks post injury and at discharge (T4). Molecular blood biomarkers (BB) were evaluated via gene expression and proteomic assays at T1 and T4. Different pain trajectories and temporal changes were identified using QST, with inflammation and pain-related biomarkers recorded. Higher concentrations of osteopontin and cystatin-C were found in SCI patients compared to healthy controls, indicating their potential as biomarkers. We observed altered inflammatory responses and a slight increase in ICAM-1 and CCL3 were noted, pointing towards changes in cellular adhesion linked with spinal injury and a possible connection with neuropathic pain. Despite a small patient sample hindering the correlation of feasibility data, descriptive statistical analyses were conducted on stress, depression, anxiety, quality of life, and pain interferences. The SCI Pain Instrument (SCIPI) was efficient in distinguishing between nociceptive and neuropathic pain, showing a progressive increase in severity over time. The findings emphasize the need for the careful consideration of recruitment setting and protocol adjustments to enhance the feasibility of multimodal pain evaluation studies post SCI. They also shed light on potential early adaptive mechanisms in SCI pathophysiology, warranting the further exploration of prognostic and preventive strategies for chronic pain in the SCI population.

Chronic Pain and Affective Experiences Associated with Daily Stressors and Uplifts

People with chronic pain often report greater reactivity to stress than those without pain. This finding is consistent with the kindling hypothesis, which states that continued exposure to stressors only heightens negative affect and dampens positive affect. Yet, people with chronic pain may also respond more positively to enjoyable activities, or uplifts, as well. Chronic pain is related to lower levels of well-being, and the fragility of positive affect model explains how individuals with lower levels of well-being often exhibit stronger, more positive responses to daily uplifts than their less distressed peers. Our study used the National Study of Daily Experiences to assess daily stressors, positive uplifts, and positive and negative affect across eight days among those with and without chronic pain. Participants (nChronicPain=658, nNoPain=1,075) were predominately Non-Hispanic White (91%), 56% female, and averaged 56 years old. Results revealed that people with chronic pain had lower levels of daily positive affect and higher levels of negative affect, yet the two groups did not vary in their stressor-related negative and positive affect. In contrast, having chronic pain was related to a greater increase in positive affect and greater decreases in negative affect on days with positive uplifts. Findings suggest that intervention efforts focusing on uplifts may be particularly helpful for people who report chronic pain.

Examining Physical and Cognitive Function in Chronic Low Back Pain Through the Use of a Multisystem Resilience Framework

OBJECTIVES

Chronic pain results in significant impairment in older adults, yet some individuals maintain adaptive functioning. Limited research has considered the role of positive resources in promoting resilience among older adults. Likewise, these factors have largely been examined independently. We aimed to identify resilience domains based on biopsychosocial factors and explore whether resilience phenotypes vary across sleep disturbance, fatigue, and cognitive function.

METHODS

Sixty adults (ages ≥60 years) with chronic low back pain completed measures of psychological, health, and social functioning. On the basis of previously published analyses, principal-components analysis was conducted to create composite domains for these measures, followed by cluster analysis to identify phenotypes.

RESULTS

Four profiles emerged: Cluster 1, with high levels of psychosocial and health-related functioning; Cluster 2, with high health-related functioning and low psychosocial functioning; Cluster 3, with high psychosocial functioning and poorer health; and Cluster 4, with low levels of functioning across all domains. Significant differences across cluster membership emerged for sleep disturbance (ηp2 = 0.29), fatigue (ηp2 = 0.29), and cognitive abilities (ηp2 = 0.47). Individuals with the highest levels of resilience demonstrated more optimal outcomes in sleep and fatigue (P values ≤0.001) than did individuals with a less resilient phenotype. Furthermore, the High-Resilience group (Cluster 1) and the High Psychosocial / Low Health group (Cluster 3) had lower cognitive impairment than did the High Health / Low Psychosocial group (Cluster 2) and the Low-Resilience group (Cluster 4) (P values ≤0.009).

CONCLUSIONS

A higher array of protective resources could buffer against the negative sequelae associated with chronic low back pain. These exploratory findings support the multidimensional nature of resilience and suggest that targeting resilience from a multisystem perspective might help to optimize interventions for older adults with chronic pain.

Adaptability and Resilience in Aging Adults (ARIAA): protocol for a pilot and feasibility study in chronic low back pain

Background

Chronic low back pain (cLBP) is the leading cause of disability among older adults and one of the top reasons for seeking healthcare, resulting in significant decrements in physical functioning. Because older adults are among the fastest growing cohorts in the USA, both the incidence and burden of cLBP are expected to increase considerably, rendering geriatric pain management a top health priority. Resilience is defined as a process allowing individuals to adapt and recover from adverse and stressful conditions, and it has been highlighted as a crucial factor in positive health-related functioning. While a growing body of literature supports the use of resilience-based interventions in chronic pain, research examining their effectiveness in older adults with cLBP remains limited. The primary aims of the study are to assess the feasibility and acceptability of a psychologically oriented resilience intervention among aging adults with cLBP.

Methods

In this article, we describe the rationale and design of the Adaptability and Resilience in Aging Adults (ARIAA) study, a single-arm intervention in which 60 participants (ages ≥ 60 years) with cLBP will be recruited to participate in a 7-week group-based program aimed at enhancing psychological resilience. Intervention sessions will target positive psychology concepts (e.g., positive affect, pain acceptance, hopeful thinking, pain self-efficacy) and cognitive behavioral techniques that have established benefits in pain management. Primary study outcomes include intervention feasibility and acceptability as measured by treatment engagement, intervention credibility and satisfaction, ability to meet recruitment and retention metrics, and the feasibility of questionnaire and home activity completion. Outcomes will be assessed at baseline, immediately at posttreatment, and at the 3-month follow-up period.

Discussion

This study will establish the feasibility and acceptability of a novel intervention aimed at enhancing positive, psychological functioning, and resilience in older adults with cLBP. Achievement of these aims will provide a rich platform for future intervention research targeting improvements in pain and disability among geriatric populations and will serve as a foundation for a fully powered trial to examine treatment efficacy of the proposed intervention.

Trial registration

Clinicaltrials.gov, identifier NCT04068922. Registered 28 August 2019.

Supplementary Information

The online version contains supplementary material available at 10.1186/s40814-021-00923-y.

Feeling Good Despite EDS: The Effects of a 5-Week Online Positive Psychology Programme for Ehlers-Danlos-Syndromes Patients

Ehlers–Danlos-Syndromes (EDS) is a group of hereditary, chronic and potentially disabling conditions. Few studies have tested the effects of psychological interventions to increase well-being in this population. We hypothesized that Positive Psychology Interventions (PPI), first applied to healthy and mentally ill subjects, can also be useful for people with somatic conditions and conducted a study to evaluate the efficacy of a 5-week online PPI designed to improve well-being in EDS patients. A sample of 132 EDS patients were allocated to three groups: assigned PPI, self-selected PPI, and waitlist control-group (WLC). Measures of positive and negative affect, pain disability, fatigue, and life satisfaction were administered before program start, 6 weeks later, and 1 month later. Satisfaction with the program was also evaluated. The results revealed that participants in the self-selected PPI-group, but not in the assigned PPI group, reported significantly lower levels of fatigue and higher levels of positive affect and life satisfaction compared to WLC after 6 weeks. There were no effects on negative affect and pain disability measures. Finally, 77% of the participants were satisfied or very satisfied with the program. These findings confirm and extend previous research by showing the efficacy of PPI for people with chronic illness under the condition that individuals can choose the program content. From a healthcare perspective, online PPIs could complement treatments aimed at symptom reduction and increase well-being in patients with EDS.

Are positive psychology interventions efficacious in chronic pain treatment? A systematic review and meta-analysis of randomized controlled trials

OBJECTIVE

Although positive psychology interventions are increasingly popular in chronic pain treatment their efficacy is still unclear. The objective is to summarize evidence on the effect of positive psychology interventions (PPIs) on pain, physical functioning, and emotional functioning in adults with chronic pain.

METHODS

Four electronic databases and additional references were searched for randomized controlled trials published between 1990 and 2020. Findings from included studies were qualitatively and quantitatively synthesized, and study quality was assessed for risk of bias. A random effects meta-analysis model was applied for outcomes with more than four findings.

RESULTS

Of 16 included randomized controlled trials, almost half delivered positive psychology interventions as self-help online interventions, and half conducted guided face-to-face interventions which lasted mostly eight weeks. Results from meta-analysis showed beneficial effects of positive psychology interventions compared to the control group on pain intensity and emotional functioning (i.e., less depressive symptoms, pain catastrophizing, negative affect; more positive affect) post-intervention. At 3-month follow-up, beneficial effects were maintained for depressive symptoms and positive and negative affect, but not for pain catastrophizing. However, the evidence on the long-term efficacy of PPIs and the efficacy of PPIs on physical functioning remains limited.

CONCLUSION

This review supports the notion that positive psychology interventions are beneficial to chronic pain treatment, although further, high quality research is needed to support this conclusion.