Effectiveness of Interventions on Work Outcomes After Road Traffic Crash-Related Musculoskeletal Injuries: A Systematic Review and Meta-analysis.

BACKGROUND: Musculoskeletal injuries are common after road traffic crash (RTC) and can lead to poor work-related outcomes. This review evaluated the impact of interventions on work-related (e.g. sick leave), health, and functional outcomes in individuals with a RTC-related musculoskeletal injury, and explored what factors were associated with work-related outcomes. METHODS: Searches of seven databases were conducted up until 9/03/2023. Eligible interventions included adults with RTC-related musculoskeletal injuries, a comparison group, and a work-related outcome, and were in English. Meta-analyses were conducted using RevMan and meta-regressions in Stata. RESULTS: Studies (n = 27) were predominantly conducted in countries with third-party liability schemes (n = 26), by physiotherapists (n = 17), and in participants with whiplash injuries (94%). Pooled effects in favour of the intervention group were seen overall (SMD = - 0.14, 95% CI: - 0.29, 0.00), for time to return to work (- 17.84 days, 95% CI: - 24.94, - 10.74), likelihood of returning to full duties vs. partial duties (RR = 1.17, 95% CI: 1.01, 1.36), decreased pain intensity (- 6.17 units, 95% CI: - 11.96, - 0.39, 100-point scale), and neck disability (- 1.77 units, 95% CI: - 3.24, - 0.30, 50-point scale). DISCUSSION: Interventions after RTC can reduce time to return to work and increase the likelihood of returning to normal duties, but the results for these outcomes were based on a small number of studies with low-quality evidence. Further research is needed to evaluate a broader range of interventions, musculoskeletal injury types, and to include better quality work-related outcomes.

How distracting is chronic pain? The impact of chronic pain on driving behaviour and hazard perception.

In road safety research, few studies have examined driving behaviour in chronic pain cohorts. The aim of this study was to investigate driving behaviour among drivers experiencing chronic pain. We compared individuals with chronic pain with age-gender matched healthy controls. Participants completed: (i) an anonymous online survey that included participant demographics, transport characteristics, self-reported driving behaviour, and pain characteristics (ii) a response-time hazard perception test and a verbal-response hazard prediction test for drivers, and (iii) a driving diary in which participants recorded their driving over two weeks. The results showed that participants with chronic pain were not significantly worse than controls for hazard perception and prediction test scores, self-reported attention-related errors, driving errors, driving violations, and involuntary distraction. Drivers with chronic pain did report significantly more driving lapses but this effect became non-significant when variables confounded with chronic pain, such as fatigue, were adjusted for. We also found that participants who reported particularly high levels of chronic pain performed worse in the hazard prediction test compared to the control group (and this effect could not be accounted for by other variables associated with chronic pain). In addition, participants with chronic pain reported significantly higher driving workload (mental demand, physical demand, effort, and frustration) compared with controls. The findings of this study provide new insights into driving behaviour in individuals with chronic pain and recommendations for future research in terms of driving assessment and self-regulation strategies are provided.

Expert consensus and perspectives on recovery following road traffic crashes: a Delphi study.

PURPOSE: To reach expert consensus on a definition for recovery following minor and moderate road traffic crash-related injuries and key factors that influence recovery, and to explore expert perspectives on risk identification methods. MATERIALS AND METHODS: A three-round Delphi study was conducted in which 47 experts (insurance representatives, health care professionals and researchers) were consulted. RESULTS: Strong expert agreement (86%) was reached for the definition: "Recovery is multifaceted and includes return to activities of daily living (ADLs), work and social/leisure activities at pre-injury level or at a level deemed acceptable by the individual, with minimal ongoing pain and symptoms, considering physical and mental health and wellbeing". Agreed key factors that influenced recovery included: resilience; coping skills; recovery expectations; pre-existing physical and mental health; workplace support; and, collaboration between the injured individual, treating providers and claim handlers. Expert perspectives on risk identification methods were mixed. CONCLUSIONS: An accepted definition for recovery following minor and moderate road traffic crash-related injury was established, which could facilitate communication and engagement between different rehabilitation stakeholders. Strong consensus was achieved on nine key factors that influenced recovery. Further research is needed to evaluate whether injured persons agree with this definition and on the utility of risk identification methods.Implications for rehabilitationExpert consensus was established for a definition of recovery following minor and moderate road traffic crash-related injuries and nine key influencing factors.An established definition could facilitate communication and engagement between all rehabilitation stakeholders, which could improve the recovery process of the injured person.Rehabilitation professionals need to be familiar with the role of psychosocial factors, such as recovery expectations, resilience and coping skills, in the recovery process.The use of physical and psychological outcome measures at regular intervals could help to identify risk of poor recovery following minor and moderate road traffic crash-related injuries.

Overactivity assessment in chronic pain: The development and psychometric evaluation of a multifaceted self-report assessment.

BACKGROUND: Overactivity in the context of chronic pain (i.e. activity engagement that significantly exacerbates pain) is an important clinical issue that has gained empirical attention in the last decade. Current assessment concepts of overactivity tend to focus on frequency to quantify the severity of the pain behaviour. This study aimed to develop and validate a more comprehensive self-assessment, the Overactivity in Persistent Pain Assessment (OPPA). METHODS: A sample of 333 individuals with chronic pain completed the OPPA. A subset of 202 individuals also completed a set of existing measures of pain-related outcomes and activity patterns. The remaining 131 participants were provided with a second copy of the OPPA to fill in one week following their initial assessment. RESULTS: A principal component analysis confirmed that the OPPA items were best represented by a single construct. The OPPA was found to correlate with pain-related measures in an expected way that is supported by both theory and qualitative data. When compared to existing overactivity measures, the OPPA was the only measure to contribute significantly to the regression models predicting higher levels of pain severity, more pain interference and lower levels of activity participation after controlling for age, gender and activity avoidance. In addition, the OPPA scale exhibited acceptable internal consistency and good test-retest reliability. CONCLUSION: The results of this study reinforce the potentially important role of overactivity in the maintenance of pain-related suffering and supports a corresponding assessment tool with preliminary psychometric evidence for clinical and research applications. SIGNIFICANCE: This study deconstructs the overactivity concept and develop a corresponding assessment based on five quantifiable severity features: severity of pain exacerbation, maladaptive coping strategies used, impact on occupational performance, recovery time and frequency. Results of the psychometric evaluation indicate that this comprehensive assessment of overactivity severity features may be necessary to understand the impact of overactivity on pain severity and physical functioning from both a clinical and research perspective.

Overactivity in Chronic Pain, the Role of Pain-related Endurance and Neuromuscular Activity: An Interdisciplinary, Narrative Review.

OBJECTIVES: Decades of research have convincingly shown that fear of pain and pain-related avoidance behavior are important precursors of disability in daily life. Reduced activity as a consequence of avoidance, however, cannot be blamed for chronic disability in all patients. A contrasting behavior, pain-related dysfunctional endurance in a task and overactivity has to be considered. Currently, there is a need to better understand the psychological determinants of overactivity, dysfunctional endurance, and neurobiomechanical consequences. METHODS: This is a narrative review. RESULTS: The first part of this review elucidates research on self-reported overactivity, showing associations with higher levels of pain and disability, especially in spinal load positions, for example, lifting, bending, or spending too long a time in specific positions. In addition, measures of habitual endurance-related pain responses, based on the avoidance-endurance model, are related to objective assessments of physical activity and, again, especially in positions known to cause high spinal load (part 2). The final part reveals findings from neuromuscular research on motor control indicating the possibility that, in particular, overactivity and dysfunctional endurance may result in a number of dysfunctional adaptations with repetitive strain injuries of muscles, ligaments, and vertebral segments as precursors of pain. DISCUSSION: This narrative review brings together different research lines on overactivity, pain-related endurance, and supposed neuromuscular consequences. Clinicians should distinguish between patients who rest and escape from pain at low levels of pain, but who have high levels of fear of pain and those who predominantly persist in activities despite severely increasing pain until a break will be enforced by intolerable pain levels.

Impact of interventions on work-related outcomes for individuals with musculoskeletal injuries after road traffic crash: a systematic review protocol.

BACKGROUND: Musculoskeletal injuries are the most common non-fatal injury from road traffic crashes. Even when the injuries are mild, they can cause pain which can affect return to work rates and work ability post-crash. Workplace output losses are the biggest cost from traffic crash-related injuries. There is a need to identify effective interventions that can improve work-related outcomes (e.g. time to return to work, sick leave, and work ability) in this group and a need to understand the intervention components, external factors, and participant characteristics that may be associated with improvement. METHODS: A systematic review will be conducted using seven databases and search terms related to road traffic crash, musculoskeletal injury, work-related outcomes, and study design. Intervention studies will be eligible if they report on at least one work-related outcome, include adults with a traffic crash-related musculoskeletal injury (e.g. fracture or whiplash), include a comparison group, and are written in English. Interventions can be medical, therapeutic, work-based, multicomponent, or other. Two researchers will independently screen titles and abstracts, review full texts for inclusion in the review, and perform the data extraction. The main outcomes of the review will be time until return to work and duration of sick leave. The results will be narratively described, with meta-analyses conducted where possible. DISCUSSION: This review will explore the effectiveness of interventions in individuals with traffic crash-related musculoskeletal injury on work-related outcomes and will act as a useful source for researchers, policy makers, and stakeholders when developing and implementing interventions in this group. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42018103746.

Approach to activity engagement and differences in activity participation in chronic pain: A five-day observational study.

BACKGROUND/AIM: Activity pacing is one of the most widely endorsed interventions used by occupational therapists to assist clients to manage chronic pain conditions. It targets two behaviours that are thought to be maladaptive: activity avoidance and overactivity (activity engagement that severely aggravates pain). However, in more recent years, the potential for activity pacing to negatively impact activity participation has been recognised which deters habitually overactive individuals from adopting the self-management strategy. The main aim of this study was to evaluate if variances in activity participation can be explained by how individuals approach activity engagement when in pain. METHODS: Sixty-eight adults with chronic pain completed a demographic questionnaire, the Pain and Activity Relations Questionnaire (PARQ), and recorded their participation in activities for five days using a paper diary. Two of the authors independently coded the recorded activities into one of three time-use categories: rest, productivity or leisure/social. A MANCOVA model was produced to examine differences in time use across four 'approach to activity engagement' categories which were determined by scores on the PARQ. RESULTS: A significant multivariate effect was found. Univariate comparisons revealed that 'overactives' (high overactivity, low avoidance) and 'pacers' (low overactivity, low avoidance) spent a similar amount of time resting over the five-day period. 'Overactives' spent the most amount of time on productive tasks and the least amount of time on social/leisure activities out of the four subgroups. CONCLUSION: Results suggest that activity pacing does not negatively impact on activity participation in chronic pain populations. 'Pacers' spent a similar amount of time resting, and had a slightly better balance between productive tasks and leisure/social activities, when compared to 'overactives'. The results of this study can be incorporated into patient education and highlight potential treatment avenues for individuals with chronic pain who are habitually overactive.

The Relationship Between Approach to Activity Engagement, Specific Aspects of Physical Function, and Pain Duration in Chronic Pain.

OBJECTIVES: To examine: (1) the relationships between habitual approach to activity engagement and specific aspects of physical functioning in chronic pain; and (2) whether or not these relationships differ according to pain duration. MATERIALS AND METHODS: Outpatients (N=169) with generalized chronic pain completed a set of written questionnaires. Categories of "approach to activity engagement" were created using the confronting and avoidance subscales of the Pain and Activity Relations Questionnaire. An interaction term between "approach to activity engagement" categories and pain duration was entered into analysis with age, sex, pain intensity, the categorical "approach to activity engagement" variable, and pain duration, in 9 ordinal regression models investigating functioning in a variety of daily activities. RESULTS: The "approach to activity engagement" category predicted the personal care, lifting, sleeping, social life, and traveling aspects of physical functioning but, interestingly, not the performance skills used during these activities, that is, walking, sitting, and standing. The interaction term was significant in 2 models; however, the effect of pain duration on associations was the inverse of that theorized, with the relationship between variables becoming less pronounced with increasing duration of pain. DISCUSSION: The results of this study do not support the commonly held notion that avoidance and/or overactivity behavior leads to deconditioning and reduced physical capacity over time. Findings do, however, suggest that a relationship exists between avoidance and/or overactivity behavior and reduced participation in activities. Implications for the clinical management of chronic pain and directions for further research are discussed.

Association between physical activity and sleep in adults with chronic pain: a momentary, within-person perspective.

BACKGROUND: Individuals with chronic pain consider improved sleep to be one of the most important outcomes of treatment. Physical activity has been shown to have beneficial effects on sleep in the general population. Despite these findings, the physical activity-sleep relationship has not been directly examined in a sample of people with chronic pain. OBJECTIVE: This study aimed to examine the association between objective daytime physical activity and subsequent objective sleep for individuals with chronic pain while controlling for pain and psychosocial variables. DESIGN: An observational, prospective, within-person study design was used. METHODS: A clinical sample of 50 adults with chronic pain was recruited. Participation involved completing a demographic questionnaire followed by 5 days of data collection. Over this period, participants wore a triaxial accelerometer to monitor their daytime activity and sleep. Participants also carried a handheld computer that administered a questionnaire measuring pain, mood, catastrophizing, and stress 6 times throughout the day. RESULTS: The results demonstrated that higher fluctuations in daytime activity significantly predicted shorter sleep duration. Furthermore, higher mean daytime activity levels and a greater number of pain sites contributed significantly to the prediction of longer periods of wakefulness at night. LIMITATIONS: The small sample size used in this study limits the generalizability of the findings. Missing data may have led to overestimations or underestimations of effect sizes, and additional factors that may be associated with sleep (eg, medication usage, environmental factors) were not measured. CONCLUSIONS: The results of this study suggest that engagement in high-intensity activity and high fluctuations in activity are associated with poorer sleep at night; hence, activity modulation may be a key treatment strategy to address sleep complaints in individuals with chronic pain.

Activity pacing, avoidance, endurance, and associations with patient functioning in chronic pain: a systematic review and meta-analysis.

OBJECTIVE: To systematically review the associations between different approaches to activity (ie, activity pacing, avoidance, or endurance) and indicators of patient functioning in chronic pain samples. DATA SOURCES: A key word search was conducted in PsycINFO, MEDLINE via Ovid, EMBASE, and PubMed up to March 2011. STUDY SELECTION: To be included, studies had to (1) be written in English, (2) report on an adult chronic pain sample, and (3) report a correlation coefficient between at least 1 measure of 1 of the 3 "approach to activity" variables and an indicator of patient functioning. DATA EXTRACTION: Two reviewers independently screened abstracts and full-text articles for eligibility and extracted the data. Results of correlation analyses were grouped on the basis of measure of approach to activity (pacing/avoidance/endurance) and the criterion variable measured (pain/physical functioning/psychological functioning), resulting in 9 categories. Random-effects modeling was then used to pool data across studies in each category. DATA SYNTHESIS: Forty-one studies were eligible for inclusion. Results demonstrated that avoidance of activity was consistently associated with more pain, poorer psychological functioning, and more physical disability. While enduring with activity was associated with enhanced physical and psychological functioning, these relationships appeared to be dependent on the measure used, with measures more reflective of persisting with activities to the point of severe pain aggravation (overactivity) linked to poorer outcomes. Pacing was generally linked to better psychological functioning but more pain and disability. CONCLUSIONS: Although causation cannot be determined, results of this study suggest that both avoidance of activity and overactivity are associated with poorer patient outcomes. Unexpected results relating to pacing may reflect either the ineffectiveness of pacing if not used to gradually increase an individual's activity level or the notion that individuals with better psychological functioning but more pain and disability are more inclined to pace activity.