Angela Lis

Association between sitting and occupational LBP

Low back pain (LBP) has been identified as one of the most costly disorders among the worldwide working population. Sitting has been associated with risk of developing LBP. The purpose of this literature review is to assemble and describe evidence of research on the association between sitting and the presence of LBP. The systematic literature review was restricted to those occupations that require sitting for more than half of working time and where workers have physical co-exposure factors such as whole body vibration (WBV) and/or awkward postures. Twenty-five studies were carefully selected and critically reviewed, and a model was developed to describe the relationships between these factors. Sitting alone was not associated with the risk of developing LBP. However, when the co-exposure factors of WBV and awkward postures were added to the analysis, the risk of LBP increased fourfold. The occupational group that showed the strongest association with LBP was Helicopter Pilots (OR=9.0, 90% CI 4.9–16.4). For all studied occupations, the odds ratio (OR) increased when WBV and/or awkward postures were analyzed as co-exposure factors. WBV while sitting was also independently associated with non-specific LBP and sciatica. Vibration dose, as well as vibration magnitude and duration of exposure, were associated with LBP in all occupations. Exposure duration was associated with LBP to a greater extent than vibration magnitude. However, for the presence of sciatica, this difference was not found. Awkward posture was also independently associated with the presence of LBP and/or sciatica. The risk effect of prolonged sitting increased significantly when the factors of WBV and awkward postures were combined. Sitting by itself does not increase the risk of LBP. However, sitting for more than half a workday, in combination with WBV and/or awkward postures, does increase the likelihood of having LBP and/or sciatica, and it is the combination of those risk factors, which leads to the greatest increase in LBP.

Spanish-Language Version of the MedRisk Instrument for Measuring Patient Satisfaction With Physical Therapy Care (MRPS): Preliminary Validation

Background and Purpose An instrument that provides valid measurements of satisfaction with physical therapy care for Spanish-speaking patients will enhance communication and ensure their representation in quality assurance analyses and research on health care disparities. The purpose of this investigation was to provide preliminary information on the factor structure, group- and individual-level reliability, and criterion-referenced validity of measurements obtained from a Spanish-language version of the MedRisk Instrument for Measuring Patient Satisfaction With Physical Therapy Care (MRPS). Subjects A total of 203 Spanish-speaking patients in the New York City area participated in this study. Methods Consenting subjects completed a 20-item MRPS after discharge from outpatient physical therapy care. Several translators performed “forward” and “backward” translation of the MRPS, followed by consensus agreement on item structure. Factor structure was investigated using item-correlation and exploratory factor analysis. Group-level reliability for single test administration was assessed using the Cronbach alpha, and individual-level reliability was assessed by calculating the standard error of the measure (SEM). Concurrent validity was tested by comparing the item scores and mean scores of factors to global measures of satisfaction. Results The means of individual item scores (1–5) ranged from 3.22 for “I did not wait too long” to 4.80 for “My therapist treated me respectfully.” There were no sex-based differences in item scores. Exploratory factor analysis suggested a 2-factor solution: a 7-item “external” factor and a 3-item “internal” factor. The correlations (r) of the mean scores from these factors with the 2 global measures ranged from .59 to .82. The SEM was 0.16 for the internal factor and 0.25 for the external factor. Discussion and Conclusion The underlying factor structure of the Spanish-language version of the MRPS was identical to the English-language version. Our findings provide preliminary support for the reliability and validity of measurements obtained from the Spanish-language version of the MRPS. Further study is needed to assess the stability of these findings in other samples. As with English-speaking patients, Spanish-speaking patients satisfaction with physical therapy care is most strongly linked to the professional behavior of the clinician.

How Well Do You Expect to Recover, and What Does Recovery Mean, Anyway? Qualitative Study of Expectations After a Musculoskeletal Injury

Background Expecting to recover from a musculoskeletal injury is associated with actual recovery. Expectations are potentially modifiable, although it is not well understood how injured people formulate expectations. A better understanding of how expectations are formulated may lead to better knowledge about how interventions might be implemented, what to intervene on, and when to intervene. Objectives The objective of this study was to explore what “recovery” meant to participants, whether they expected to “recover,” and how they formed these expectations. Methods This qualitative study used interpretive phenomenological analysis. Eighteen semistructured interviews were conducted with people seeking treatment for recent musculoskeletal injuries. Results Recovery was conceptualized as either (1) complete cessation of symptoms or pain-free return to function or (2) return to function despite residual symptoms. Expectations were driven by desire for a clear diagnosis, belief (or disbelief) in the clinicians prognosis, prior experiences, other peoples experiences and attitudes, information from other sources such as the Internet, and a sense of self as resilient. Conclusions Expectations appear to be embedded in both hopes and fears, suggesting that clinicians should address both when negotiating realistic goals and educating patients. This approach is particularly relevant for cases of nonspecific musculoskeletal pain, where diagnoses are unclear and treatment may not completely alleviate pain.

Both positive and negative beliefs are important in patients with spine pain: findings from the Occupational and Industrial Orthopaedic Center registry

BACKGROUND CONTEXT Negative beliefs are known to influence treatment outcome in patients with spine pain (SP). The impact of positive beliefs is less clear. PURPOSE We aimed to assess the influence of positive and negative beliefs on baseline and treatment responses in patients with SP. STUDY DESIGN/SETTING A retrospective cross-sectional and longitudinal analysis of prospectively collected data of outpatient physical therapy patients with SP was carried out. Questionnaires administered before and during treatment included the STarT Back distress scale (negative beliefs), and expectation and self-efficacy questions (positive beliefs). PATIENT SAMPLE Patients with SP with a baseline assessment and follow-up assessment comprised the study sample. OUTCOME MEASURE Perceived disability was measured using the Oswestry Disability Index (ODI) or the Neck Disability Index (NDI). A clinical meaningful change (minimum clinically important difference [MCID]) was defined as decrease in ODI or NDI of ≥30%. METHODS We used the Akaike Information Criterion from the first imputed dataset of the prediction model to select predictor variables. Prediction models were fitted to the outcome variables. RESULTS In the cross-sectional analysis, 1,695 low back pain (LBP) episodes and 487 neck pain (NP) episodes were analyzed. STarT Back Screening Tool (SBST)-distress was positively associated with perceived disability in both LBP (beta 2.31, 95% confidence interval [CI] 1.75-2.88) and NP (beta 2.57, 95% CI 1.47-3.67). Lower self-efficacy was negatively associated with more perceived disability for LBP (beta 0.50, 95% CI 0.29-0.72) but not for NP, whereas less positive expectations was associated with more perceived disability in NP (beta 0.57, 95% CI 0.02-1.12) but not in LBP. In the longitudinal analysis, 607 LBP episodes (36%) and 176 (36%) NP episodes were included. SBST-distress did not predict treatment outcome in spine patients. In LBP, patients with a lower positive expectation were less likely to experience an MCID in perceived disability (odds ratio [OR] per point increase 0.89, 95% CI 0.83-0.96), and there was a similar trend in NP (OR per point increase 0.90, 95% CI 0.79-1.03). In patients with LBP, lower self-efficacy at baseline was associated with a higher likelihood that an MCID was achieved (OR per point increase 1.09, 95% CI 1.01-1.19). In NP, self-efficacy was not included in the final model. CONCLUSIONS Our study demonstrates that both negative and positive beliefs are associated with perceptions of disability. However, in this study, only positive beliefs were associated with treatment outcome.

Feasibility of Training Physical Therapists to Implement a Psychologically Informed Physical Therapy Program for Deployed U.S. Sailors and Marines with Musculoskeletal Injuries

This study assesses the feasibility of training U.S. Navy Physical Therapy staff members (PT staff) aboard a U.S. Navy Aircraft Carrier in psychologically informed physical therapy (PiPT). Training was conducted prior to deployment over 3 d and included background information, skills development, and application in the form of role playing and case studies. During deployment, nine phone conferences were conducted to reinforce training, assess skills, and discuss implementation. PiPT knowledge was assessed by a written test and role-playing skills. The adoption of the training was determined by analysis of clinical notes and verbal responses of the PT staff during phone conferences. There were two PT staff members on the carrier. Both received passing knowledge test scores and demonstrated role-playing proficiency. Clinical note assessment and discussions during conference calls also indicated successful implementation. The feasibility of training Navy PT staff to implement PiPT was demonstrated. PT staff successfully translated training into practice. This is significant, since PiPT has the potential to limit attrition due to musculoskeletal injuries in Navy personnel. Factors believed to be associated with the success of the training include adoption of the PiPT model by PT staff and reinforcement of changes in clinical practice during deployment.

Psychometric properties of the Swedish version of the Treatment Outcome Satisfaction Questionnaire

PurposePatient satisfaction is an outcome measure for low-back pain (LBP) interventions which allows clinicians to design patient-oriented treatments. The Treatment Outcome Satisfaction Questionnaire (TOSQ) is an English instrument constructed for such evaluations, and no equivalent instruments exist for the Swedish population. This study, therefore, translated TOSQ into Swedish and assessed the translated version’s psychometric properties for patients with LBP.MethodsA cross-cultural adaptation was used to translate TOSQ into Swedish. Subsequently, data from 131 patients with LBP whom undergone physiotherapy were consecutively aggregated and analyzed in a Rasch rating scale model with person measures standardized at 0–100 logits to evaluate the translated scale’s validity. Finally, test–retest reliability of the Swedish version of TOSQ (TOSQ-S) was quantified via an intraclass correlation coefficient (ICC) and the standard error of measurement (SEM) in 41 patients.ResultsTOSQ was successfully translated into Swedish; however, while some Rasch model indices supported the translated scale’s unidimensionality, one out of eight items and 12 out of 131 subjects misfitted the model. Scale optimization resulted in a 6-item subconfiguration, for which all items fitted the model, person misfits were reduced to ten subjects, and the person separation index increased from 1.86 to 2.04. ICC and SEM estimates suggested acceptable reliability for the six-item TOSQ-S at 0.66 and 6.6 logits, respectively.ConclusionsA six-item TOSQ-S configuration showed acceptable psychometric properties and is suitable for measuring treatment outcome satisfaction of physiotherapy in patients with LBP.