Preference for Hedonic Goals in Fibromyalgia; Is It Always an Avoidance Mechanism? Looking the Relationship with Pain Acceptance from a Positive Psychology Perspective.

The aim of this study was to analyze the effect of openness to experience on pain acceptance through positive affect (PA) considering the moderating role of preference for mood management goals in women with fibromyalgia (FM). A cross-sectional study (n = 231) was carried out. A simple mediation model and a moderate mediation model were conducted by SPSS macro-PROCESS. Results showed that PA mediated positively the effect of openness to experience on acceptance (B = 0.46, SE = 0.80, t = 5,59; 95% CI = [0.3016, 0.6298], p < .001) and that the contribution of openness to experience to PA varied at different values of mood management goals (medium: - .04; ß = .40, p < .001; high: .95; ß = .61, p<.001). Findings may serve as a foundation for tailored interventions to promote activity through acceptance focusing on PA and mood management goals among women with medium to high level of hedonic goals.

Revisiting the Mackey Childbirth Satisfaction Rating Scale: Spanish adaptation, factor analysis, and sources of construct validity.

BACKGROUND: Women's dissatisfaction with perinatal health care services is associated with poor postpartum outcomes for the mother and the baby. The Mackey Childbirth Satisfaction Rating Scale is a frequently used measure of women's childbirth satisfaction. However, its factor structure has been inconsistent across investigations. The goal of this study was to evaluate the psychometric properties of the scale (i.e., factor structure and sources of validity evidence). METHODS: This study is a descriptive prospective investigation. Participants included 106 pregnant women (mean age = 31.86, SD = 4.12) recruited from a public university hospital situated in South Madrid. Sources of construct validity of the Mackey were explored with the Women's View of Birth Labor Satisfaction Questionnaire. Sources of criterion validity were investigated with measures of pain (labor, delivery, and just after birth) and post-traumatic stress symptoms. RESULTS: Minor adaptations in item distribution resulted in an adequate fit of the original six-factor solution of the Mackey scale (i.e., oneself, the partner, the baby, the nurse, the physician, and overall satisfaction). Sources of validity evidence supported the construct and criterion validity of the scale. CONCLUSIONS: Obtaining a psychometrically and conceptually sound factor solution is fundamental when validating a scale. With the present study, researchers and clinicians (e.g., midwives) will be able to measure women's childbirth satisfaction in a more robust manner. Both antecedents and consequences of satisfaction were found to correlate with several satisfaction subscales, which might help guide prevention programs in mother care in a more efficient way.

Does Pain Acceptance Contribute to Improved Functionality through Walking in Women with Fibromyalgia? Looking at Depressive Comorbidity.

In the last decade, research has pointed to physical exercise as an effective treatment in fibromyalgia patients. Some studies have highlighted the role of acceptance and commitment therapy in optimizing the benefits of exercise in patients. However, given the high comorbidity in fibromyalgia, it is necessary to value its possible influence on the effect of certain variables, such as acceptance, on the benefits of treatments, such as physical exercise. Our aim is to test the role of acceptance in the benefits of walking over functional limitation, further assessing whether this model is equally valid, considering depressive symptomatology as an additional differential diagnosis. A cross-sectional study with a convenience sample through contacting Spanish fibromyalgia associations was carried out. A total of 231 women with fibromyalgia (mean age 56.91 years) participated in the study. Data were analyzed with the Process program (Model 4, Model 58, Model 7). The results highlight the role of acceptance as a mediator between walking and functional limitation (B = -1.86, SE = 0.93, 95% CI = [-3.83, -0.15]). This model, when depression is incorporated as a moderator, is significant only in patients without depression, revealing the need for personalized treatments in fibromyalgia, considering their most prevalent comorbidity.

Exploring the moderated role of two psychological programs on sexual pleasure from physical symptoms, body image distortion and emotional problems of Hispanic women with breast cancer.

Decreased sexual pleasure is a common problem in women with breast cancer. The aim of this study was to evaluate the effect of psychoeducation vs. acceptance and commitment therapy to improve sexual pleasure according to the predictive role of physical, cognitive and emotional factors. Results of 139 Hispanic women (Mexico and Spain) diagnosed with breast cancer reveal that only the emotional factor of depression predicts decreased sexual pleasure. Although women who participated in the psychoeducation program presented greater physical symptomatology, body image distortions and emotional distress, the results seem to indicate that psychoeducational guidelines are relevant to improve sexual pleasure in those women who manifest higher levels of previous depression. Future research is required to clarify these issues.

The Role of Self-Efficacy and Activity Patterns in the Physical Activity Levels of Women with Fibromyalgia.

Keeping high levels of physical activity is a challenge among chronic patients. In this regard, self-efficacy has been identified as a crucial variable to reduce sedentarism and physical inactivity in women with fibromyalgia. The current study aimed to evaluate the associations among objective physical activity levels, self-efficacy, activity patterns, and the impact of the disease, as well as to compare those variables between women with fibromyalgia with different self-efficacy levels. For this purpose, in this cross-sectional study, the physical activity levels of 123 women with fibromyalgia were assessed by accelerometers, together with self-efficacy, the impact of the disease, and activity patterns. Results revealed that self-efficacy for light or moderate physical activity was directly related to light (p < 0.01), moderate (p < 0.01), and vigorous physical activity (p < 0.05), as well as inversely related to sedentary time (p < 0.01). Moreover, the main differences were observed between those with low self-efficacy levels and the rest of the sample, while there were no differences between the high and the medium self-efficacy groups (p > 0.05). Thus, self-efficacy for walking and light physical activity seems to be more relevant than self-efficacy for moderate and vigorous physical activity to achieve higher levels of physical activity.

Pathological Cycle between Pain, Insomnia, and Anxiety in Women with Fibromyalgia and its Association with Disease Impact.

BACKGROUND: Pain, sleep disturbances, and mood disorders are considered common symptoms of fibromyalgia (FM). However, the interactions that are established between them and the implication that this has in the disease are not clear. The main objective of this study is to clarify the relationships established between insomnia, pain intensity and anxiety in women with FM. Additionally, the effect that the indicated pathological cycle between pain, insomnia and anxiety may have on the impact of the disease in these patients is explored. METHODS: A total of 228 women diagnosed with FM participated in this study (mean age = 56.99 years, SD = 10.35). Measurements were conducted at two time points. Initially, the women completed self-report questionnaires about anxiety (The Hospital Anxiety and Depression Scale; HADS), sleep problems (The Insomnia Severity Index; ISI) and pain intensity (Brief Pain Inventory; BPI), and a week later, they answered questions about the impact of fibromyalgia (Fibromyalgia Impact Questionnaire- Revised; FIQ-R). For data analysis, models 4 and 6 of the Macro Process for SPSS were used. RESULTS: Insomnia predicts higher levels of pain, which in turn predicts higher levels of anxiety, which in turn predicts a higher impact of fibromyalgia (B = 2.76, SE = 1.10, 95% CI = [0.79,5.11]). No significant results were found for the other interactions between the variables. CONCLUSIONS: Due to the clinical and scientific relevance of the insomnia-pain-anxiety pathological cycle and given the impact it has on FM, it is especially relevant to develop programs for patients with fibromyalgia based mainly on improving sleep quality.

Sedentary Behavior and Pain after Physical Activity in Women with Fibromyalgia-The Influence of Pain-Avoidance Goals and Catastrophizing.

BACKGROUND: Fibromyalgia is characterized by chronic pain and fatigue that triggers a functional disability caused by the lack of activity. Pain catastrophizing may contribute to avoiding activity with the intention of managing pain levels. Based on the sedentary behavior with fibromyalgia, the present study assessed the preference of pain-avoidance goals and pain catastrophizing as mediator and moderator variables, respectively, that influence pain perception after a 6-min-walking test. METHODS: The sample was composed of 76 women with fibromyalgia (mean age = 55.05, SD = 7.70). Previous sedentary behavior, preference for pain-avoidance goals, and pain catastrophizing were evaluated before starting the walking-test. Subsequently, pain perception was evaluated. RESULTS: A significant moderated-mediation model was found in which pain-avoidance goals mediated the relationship between sedentarism and pain after a walking-test, and pain catastrophizing moderated the relationship between the preference for pain-avoidance goals and pain perception. Specifically, high levels of pain catastrophizing contributed to increased pain perceptions after completing the test (B = 0.570, p = 0.03, CI 95% (0.09, 0.11)]. CONCLUSIONS: The results suggest that motivational interventions can improve the symptoms because their objectives are focused on managing conflict goals. These interventions should focus on catastrophic cognitions considering that pain catastrophizing is deemed to be one of the major inhibitors of physical activity in fibromyalgia.

Does pain after delivery unequivocally lead to postpartum depression? The moderating role of religious coping.

OBJECTIVE: The objective of this work is to explore whether the relationship between pain after delivery and postpartum depression is increased or decreased by the use of religion as a coping strategy (moderation). METHODS: A longitudinal cohort study was conducted. The sample was evaluated on three occasions: third trimester of pregnancy (religious coping), after birth (pain severity) and four months after delivery (postpartum depression). Participants were 122 women (mean age = 31.29; SD = 4.9: range = [22, 42 years]) with low obstetric risk. RESULTS: Both pain severity and religious coping contributed to postpartum depression (r = .20, p = .029 and r = .28, p = .04, respectively). Religious coping exacerbated the relationship between pain after delivery and postpartum depression (B = -0.11, t = -2.48, p = .014, [-0.20, -0.02]). Depression was highest in participants using religious coping irrespective of pain severity levels. CONCLUSION: These findings support the importance of person-environment interaction studies and provide new evidence on the deleterious role of religious coping in the well-being of women after childbirth.

Symptoms in women with fibromyalgia after performing physical activity: the role of pain catastrophizing and disease impact.

INTRODUCTION: Walking is an effective treatment for symptoms' management in patients with fibromyalgia. However, despite its benefits, fibromyalgia patients face a variety of obstacles that result in reduced ability to sustain physical exercise. The main goal of the study was to analyze the role of pain catastrophizing and fibromyalgia impact in the relationship between regular walking behavior and pain and fatigue experienced after a laboratory walking test. METHOD: The study has an observational analytical laboratory design. A total of 100 women were contacted by the research team. Seventy-six women diagnosed with fibromyalgia aged 18 years and older (mean age = 55.05, SD = 7.69) participated. RESULTS: Significant correlations were found among regular walking behavior, pain catastrophizing, impact of fibromyalgia, pain intensity after walking, and fatigue intensity after walking. The serial multiple mediation analyses confirmed that pain catastrophizing and impact of fibromyalgia mediated the relationship between regular walking behavior and the level of pain (beta B = 0.044, 95% CI = [0.01-0.012]) and fatigue (beta B = 0.028, 95% CI = [0.01-0.08]) after the laboratory walking test. Also, the participants that walked less regularly experienced more pain and fatigue after the 6-Minute Walk Test. CONCLUSIONS: Considering cognitive variables alongside the impact of fibromyalgia will help understand the inhibitors of engaging in physical activity. Therapeutic walking programs must be tailored to patients with fibromyalgia to reduce pain and fatigue related to physical activity and to promote better functioning and quality of life. Key Points • Regular walking behavior was associated with fibromyalgia impact, pain catastrophizing, and less pain and fatigue after physical activity. • When patients catastrophize pain, they usually interpret physical activity as threatening, which generates more pain and fatigue after doing exercise. • Therapeutic programs should be designed to reduce pain catastrophizing and fibromyalgia impact.

The Influence of the Fear of Negative Evaluation on Activity Avoidance in Fibromyalgia: Exploring Pain Acceptance and Positive Affect as Resilience Variables.

To examine the mediating role of pain acceptance (PAcc) between fear of negative evaluation (FNE) and activity avoidance (AV) at different levels of positive affect (PA) (moderator) among women diagnosed with fibromyalgia (FM) (moderate mediation model). This study was cross-sectional in design. A convenience sample of women with FM (n = 231) completed measures of pain severity, FNE, PAcc, AV, and PA. A simple mediation model and a moderate mediation model was constructed and analyzed using the SPSS macro-PROCESS. First, PAcc mediated the effect of FNE on AV (ß = .02, SE = 0.008; [95% CI [0.0075, 0.0394]). Second, a mediated effect of PAcc between FNE and AV moderated by PA at medium and high levels of PA were found (m: 0.23; ß = -.22, p = .0006; h: 9.59; ß = -.34, p = .0002. Future work should seek to validate study findings in diverse samples of FM patients. Additionally, future work should explore how FM self-management interventions that include PAcc can promote increased activity among women suffering from FM with medium to high levels of PA.

How to Generate Self-Efficacy despite Pain: The Role of Catastrophizing and Avoidance in Women with Fibromyalgia.

BACKGROUND AND OBJECTIVE: Fibromyalgia-related pain is influenced by numerous factors, including severity, as well as cognitive profiles based on pain catastrophizing or activity patterns. In this context, self-efficacy is identified as a potential predictor for explaining certain health outcomes. This study aimed to contribute to exploring the role of pain avoidance (as activity pattern) between pain severity and self-efficacy along pain catastrophizing. METHODS: Through a cross-sectional study, a total of 264 women with fibromyalgia completed self-report measures of pain severity, pain avoidance, pain catastrophizing, and self-efficacy. The severity of the symptoms, the time elapsed since diagnosis, and the time elapsed since the onsets of symptoms were included as covariates to control. Regression-based moderated-mediation analysis was used to test the conditional effect of pain severity on self-efficacy via pain avoidance at varying levels of pain catastrophizing. RESULTS: Pain avoidance mediated the effect of pain severity on self-efficacy. The indirect effects showed a moderated effect when patients scored high on the pain catastrophizing scale. The model evaluated, where catastrophic pain moderates the indirect effect of pain intensity on self-efficacy through pain avoidance, explained 49% of the variance. CONCLUSIONS: Catastrophic beliefs associated with pain as being uncontrollable increase the relationship between pain severity and pain avoidance. In turn, pain avoidance is associated with a low perception of capacity.

Predicting Adherence to Walking from Anxiety, Depression, Disease Impact, Catastrophizing, and Cognitive Fusion in Patients with Fibromyalgia: Does Pain Severity Matter?

AIM: This study analyzed whether the contribution of several factors associated with walking adherence in fibromyalgia (FM) patients varies across pain severity levels. METHODS: Participants were 228 women with FM (mean age 57 years; SD = 8.49). RESULTS: Bivariate analyses replicated the expected association between predictors (FM impact, anxiety, depression, catastrophizing, and cognitive fusion) and poorer adherence to walking. Multivariate analyses showed a negative contribution of FM impact, catastrophizing, and depression on walking adherence after controlling for pain levels (all p < 0.01). A moderation effect of pain severity in the relationship between predictors and adherence to walking was only found for cognitive fusion (B = -0.01, t = -2.02, p = 0.040). Specifically, cognitive fusion only contributed to poor walking adherence at moderate and severe pain levels, but not when pain was mild. The contribution of the remaining predictors was not moderated by pain levels, which means that they contributed to walking adherence irrespective of the pain severity of the patient. Pain severity did not contribute to walking adherence when controlling for the predictors. CONCLUSION: Clinical implications are discussed from the perspective of personalized interventions and preferable target interventions when attempting to increase adherence to walking in this population.

Development and psychometric properties of the maternal ambivalence scale in spanish women.

BACKGROUND: maternal ambivalence, which refers to experiencing mixed emotions about motherhood, like happiness and sadness, is frequent during the perinatal period. AIM: Due to the relevance of this topic and the lack of psychometrically-sound instruments to measure it, this study aims to develop and test a measure of maternal ambivalence called the Maternal Ambivalence Scale (MAS). METHODS: in this cross-sectional, observational study, participants were 1424 Spanish women recruited online who were either pregnant (33%) or recent mothers of children under 2 years (67%). They responded to the MAS and measures of anxiety and depressive symptoms and life satisfaction. Analyses included exploratory and confirmatory factor solutions for the MAS, internal consistency estimates (Cronbach's α) for all scales, as well as bivariate correlations to investigate sources of validity evidence. Comparisons between pregnant and postpartum women were also examined. RESULTS: The assumptions for factor analysis about the relationship between items were met (Kaiser-Meyer-Olkin's [KMO] test = 0.90; Barlett's Chi-square sphericity test = 5853.89, p < .001). A three-factor solution (Doubts, Rejection, and Suppression) for the MAS showed a good model fit both in exploratory (Chi-square = 274.6, p < .001, Root Mean Square Error of Approximation [RMSEA] = 0.059, RMSEA 90% Confidence Interval [CI]=[0.052, 0.066], Comparative Fit Index [CFI] = 0.985, Tucker Lewis Index [TLI] = 0.974) and confirmatory analyses (Chi-square = 428.0, p < .001, RMSEA = 0.062, RMSEA 90% CI=[0.056, 0.068], CFI = 0.977, TLI = 0.971). Doubts (α = 0.83), Rejection (α = 0.70), and Suppression (α = 80) were associated with higher anxiety and depressive symptoms, as well as lower life satisfaction (all p < .001). Pregnant women presented greater Rejection (mean difference = 0.30, p = .037, 95% CI=[0.02, 0.58]) and less Suppression (mean difference=-0.47, p = .002, 95% CI=[-0.77,-0.17]) than mothers. CONCLUSION: with this study, we provide clinicians and researchers with a novel tool that successfully captures the complex nature of maternal ambivalence. Given the associations of maternal ambivalence with important outcomes in perinatal women, this tool could be important for the prevention of distress associated with chronic ambivalence and to evaluate the effectiveness of interventions addressing ambivalence.

When It Hurts, a Positive Attitude May Help. The Moderating Effect of Positive Affect on the Relationship Between Walking, Depression, and Symptoms in Women with Fibromyalgia.

BACKGROUND: Increased exercise is a marker of health in fibromyalgia (FM). However, patients frequently avoid physical activity as a way of minimizing the pain they feel. This deprives them of opportunities to obtain positive reinforcement, increasing functional impact. AIMS: This study examines the mediating role of depressive symptoms between walking (as physical exercise), functional impact, and pain, at different levels of positive affect (PA) among women with fibromyalgia. DESIGN: Cross-sectional correlational study. SETTINGS: Mutual aid associations for fibromyalgia in Spain. PARTICIPANTS: 231 women diagnosed with FM. METHODS: Moderate mediation analyses were conducted using PROCESS. RESULTS: First, a simple mediation model showed that depression mediated the effect of walking on functional impact, but not on pain. Additionally, the moderated mediated model showed that this effect was significant at medium and high levels of PA, but not when levels of PA were low. CONCLUSIONS: Provision of resources focused on positive affect seem to increase the positive effects of walking on functional impact through the reduction of depressive symptoms. Nurses can improve adherence of patients with FM to walking behavior through increasing positive affect.

The Role of Walking in the Relationship between Catastrophizing and Fatigue in Women with Fibromyalgia.

Walking is one of the most beneficial treatments for fibromyalgia patients. However, adherence to walking behavior is low due to the initially associated symptoms (including pain and fatigue). Although the association of catastrophism with greater symptoms is known, the results regarding fatigue have not always been consistent. Nevertheless, it is unknown whether the association between catastrophism and fatigue could, in turn, be conditioned by whether the patients walk or not. Therefore, our goal was to explore the moderating effect of walking on the association between catastrophizing and fatigue in patients with fibromyalgia. A cross-sectional study was carried out with 203 women with fibromyalgia. We used the Multidimensional Fatigue Inventory to assess fatigue and the Pain Catastrophizing Scale to assess pain catastrophizing (differentiating between its three dimensions). An ad hoc item was used to evaluate walking (moderator). Lower scores for fatigue and pain catastrophizing were found among patients who walked versus those who did not. Walking moderated the relationship between rumination and fatigue (Beta = 0.16, t = 1.96, p = 0.049) and between magnification and fatigue (Beta = 0.22, t = 21.83, p = 0.047). Helplessness showed no direct or interaction effect for fatigue. Nevertheless, higher rumination and magnification were associated with higher fatigue only in patients who walked. Therefore, to promote adherence to walking and reduce the effects of catastrophizing on fatigue, it seems necessary to manage rumination and magnification among patients who walk.

Psychometric Properties of the Childbirth Expectation Questionnaire in a Sample of Spanish Pregnant Women / Las propiedades psicométricas del Cuestionario de Expectativas sobre el Parto en una muestra de mujeres españolas gestantes

Childbirth expectations during pregnancy are important factors related to birth satisfaction. The aim of this study is to validate the Childbirth Expectation Questionnaire (CEQ) in a sample of Spanish pregnant women; 231 women responded to the CEQ during their first trimester of pregnancy and 106 of them completed a re-test at the third trimester. Exploratory analyses with 1-to-6 factor solutions were carried out to investigate the internal structure of the CEQ. The three-factor solution (spousal support and control, medical support and environment, and labor pain and distress) showed the best properties in terms of model fit, number of items per factor, and item loadings. The internal consistency of scales was also good (.79 ≥ α ≤ .93). Test-retest analyses showed significant intercorrelations between expectations from the first to the third trimester of pregnancy. There is a need to assess childbirth expectations, and our results suggest that the CEQ is a valid and useful instrument to be used among Spanish pregnant women.

Las expectativas sobre el parto (evaluadas durante el embarazo) constituyen factores relevantes relacionados con la satisfacción del parto. El objetivo de este estudio es validar el Cuestionario de Expectativas sobre el Parto (CEQ según las siglas del nombre inglés) en una muestra de gestantes españolas. Un total de 231 mujeres cumplimentaron el CEQ durante el primer trimestre del embarazo y 106 de ellas cumplimentaron de nuevo el instrumento en el tercer trimestre. Se realizaron análisis exploratorios con soluciones factoriales de 1 a 6 factores para analizar la estructura interna del CEQ. La solución de tres factores (apoyo de la pareja y control, apoyo médico y ambiente y dolor durante el parto y malestar) mostró las mejores propiedades en cuanto a ajuste del modelo, número de ítems por factor y peso de los ítems. La consistencia interna de las escalas también fue buena (.79 ≥ α ≤ .93). Los análisis test-retest mostraron intercorrelaciones significativas entre las expectativas del primer y tercer trimestre del embarazo. Atendiendo a la necesidad de evaluar las expectativas sobre el parto, nuestros resultados sugieren que el CEQ es un instrumento válido y útil para ser utilizado en las gestantes españolas.

Effects of Walking as Physical Exercise on Functional Limitation through Pain in Patients with Fibromyalgia-How Does Catastrophic Thinking Contribute?

Background: Aerobic exercise has a beneficial impact on physical and mental health. However, patients with fibromyalgia do not always report perceiving these improvements. Objective: The aim of this study was to examine whether catastrophic thinking moderated the effects of perceived pain severity once an active and regular lifestyle had been established on functional limitation in chronic pain patients, in particular in fibromyalgia patients. Methods: The sample consisted of a total of 491 women with fibromyalgia diagnosed according to the criteria of the American College of Rheumatology. Participants completed an ad-hoc item about lifestyle related to walking pattern, the Brief Pain Inventory, the Pain Catastrophization Scale, and the Fibromyalgia Impact Questionnaire-Revised. To examine the relationship between the variables, a moderate mediation analysis was performed through the macro PROCESS (model 14). Results: The relationship between the performance of the recommended walking pattern and functional limitation was mediated by the severity of pain (B = −5.19, SE = 1.59, t = −3.25, 95% CI = [−4.06, −0.28], p < 0.001). Furthermore, it was found that the mediating effect of pain severity was moderated by catastrophic thinking (Index = −0.014, SE = 0.007, 95% CI [0.002, 0.030]). Conclusions: The positive effect of walking on functionality through the reduction of pain levels is favored when patients present low catastrophizing, which affects the relevance of including interventions focused on the reduction of catastrophizing in the prescription of physical exercise in patients with fibromyalgia as the treatment of choice.

What Does the Psychological Flexibility Model Contribute to the Relationship Between Depression and Disability in Chronic Pain? The Role of Cognitive Fusion and Pain Acceptance.

This study examines the mediator role of cognitive fusion between depressive symptoms, activity avoidance and excessive persistence at different levels of pain acceptance (moderator) among fibromyalgia patients (FM). Using a sample of 231 women, multiple and moderate mediation analyses were conducted with PROCESS. Results showed that depression was positively associated with activity avoidance and excessive persistence. Furthermore, cognitive fusion and pain acceptance were found to mediate the effect of depression in both patterns. Additionally, pain acceptance was found to play a contextual role in cognitive fusion, as a moderator, between depressive symptoms and maladaptive patterns. Specifically, FM patients with high acceptance levels and low levels of depression presented the strongest associations between depression and cognitive fusion. Techniques aimed at reducing cognitive fusion, could be especially beneficial to FM women with high pain acceptance.

The paradox of wellbeing: what happens among women with fibromyalgia? The effect of cognitive fusion.

OBJECTIVE: Our study examined the 'paradox of wellbeing' among women with fibromyalgia and the role of cognitive fusion on wellbeing in relation to age. METHODS: A total of 228 women diagnosed with fibromyalgia according to the American College of Rheumatology criteria were included. In order to explore the conditional effects of age in the moderation analyzes, as recommended in the PROCESS Macro, the 16th, 50th, and 84th percentiles were calculated. These percentiles define three age groups that we will call younger (from 30 to 53 years), middle-aged (from 54 to 60 years) and older women (from 61 to 78 years). RESULTS: We found a 'paradox of wellbeing' among fibromyalgia patients which has not yet been reported: the older the patients, the higher scores on hedonic (positive affect) and eudaimonic (activities engagement) wellbeing. A moderation effect of age was found in the relationship between cognitive fusion and wellbeing (cognitive fusion showed negative associations with positive affect and activities engagement but not among older patients). CONCLUSION: Our study underscores the need of personalized interventions for fibromyalgia patients to improve their wellbeing. Especially in younger and middle-aged patients, it would be of interest interventions in cognitive defusion through Acceptance and Commitment Therapy (ACT).

Exploring the Preference for Fatigue-avoidance Goals as a Mediator Between Pain Catastrophizing, Functional Impairment, and Walking Behavior in Women With Fibromyalgia.

OBJECTIVES: Along with the symptoms of pain and fatigue, pain catastrophizing and avoidance behaviors are highly prevalent and associated with functional impairment in fibromyalgia (FM) patients. Although pain and fatigue affect patients' quality of life, research has been exclusively focused on how pain affects physical activity and exercise. The aim of this study was to analyze the role of pain catastrophizing and preference for fatigue-avoidance goals in walking behavior and functional impairment in women with FM. MATERIALS AND METHODS: In this cross-sectional study the sample was composed of 76 participants aged 18 years and older (mean age=55.05, SD=7.70). The study evaluated pain catastrophizing, preference for fatigue-avoidance goals, functional impairment, and walking behavior along with sociodemographic variables and clinical data. RESULTS: Pain catastrophizing was associated with preference for fatigue-avoidance goals and this preference was associated with greater functional impairment and less distance walked. Path analysis supported the mediating role of preference for fatigue-avoidance goals in the relationship between pain catastrophizing and walking behavior and between pain catastrophizing and functional impairment. Furthermore, pain catastrophizing predicted greater preference for fatigue-avoidance goals which predicted more problems in functioning and less distance walked. DISCUSSION: The present study may help clarify the connection between the factors that stop individuals with FM from implementing beneficial behaviors such as walking, and thus, allowing for the design of psychological interventions that seek to maintain physical functioning despite experiencing fatigue.