Background

Chronic musculoskeletal pain increases an individual's risk of developing many chronic diseases and the risk of all-cause early mortality. There is irrefutable evidence supporting the role of physical activity (PA) in reducing these risks. Sustaining changes to PA behaviours is challenging and efforts are needed to understand the barriers and facilitators of change. Understanding these factors is a vital step in developing behaviour change interventions.

Background and purpose

To identify methods used to measure free living sedentary behaviour in people with back pain and review the validity and reliability of identified measures.

Aims/background

Current treatment recommendations advocate various exercise modalities for people with chronic Low Back Pain (cLBP)1. Walking appears to represent an inexpensive and readily accessible activity for a range of individuals, including those who were previously sedentary. However, the effectiveness of such interventions are uncertain in cLBP.

Purpose

This pilot study tested the feasibility of a self-determination theory-based communication skills training programme designed to increase physiotherapists' psychological needs supportive behaviour when treating patients with chronic low back pain (CLBP>12 weeks).

Background and purpose

Sleep disturbance is a prevalent symptom in people with chronic low back pain (CLBP >12 weeks), but there is currently no knowledge of the effectiveness of physiotherapy for this problem. This study evaluated the feasibility of a randomised controlled trial (RCT) exploring the effects of physiotherapy on sleep disturbance in CLBP [Current controlled trial ISRCTN 54009836].

Background: Activity advice and prescription are commonly used in the management of low back pain (LBP). However, no research has assessed whether objective measurements of physical activity predict outcome, recovery and course of LBP.

Methods: One hundred and one patients with acute LBP were recruited into a longitudinal cohort study. Each participant completed the Roland Morris Disability Questionnaire (RMDQ), Visual Analogue Scale and a “simple” activity question, detailing whether they had resumed full “normal” activities (Y/N), at baseline (T0) and 3 months (T1); Baecke Physical Activity Questionnaire, Fear-Avoidance Beliefs Questionnaire and the 12-item General Health Questionnaire at T0. Physical activity was measured for 7 days at T0 and T1 with an RT3 accelerometer and the seven day physical activity recall questionnaire (7d-PAR).

Results: The only significant predictor of RMDQ change was RMDQ score at T0 (p < .0001). Physical activity change did not predict RMDQ change in both univariate (p = 0.82) and multivariate analysis (p = 0.84). Paired t-tests found a significant change in RMDQ (p < .0001) and return to full “normal” activities (p < .0001) from T0 to T1, but no significant change in activity levels measured with the RT3 (p = 0.56) or the 7d-PAR (p = 0.43). RMDQ change (OR 1.72, p = 0.01) and RMDQ at T1 (OR 0.65, p = 0.04) predicted return to full “normal” activities at T1.

Conclusions: These results question the role of physical activity in LBP recovery and the assumption that activity levels change as LBP symptoms resolve.

Conflicts of Interest: None

Sources of Funding: This research was supported by a University of Otago Establishment Grant

Background and Purpose: Current clinical guidelines recommend supervised exercise as a first-line treatment in the management of low back pain (LBP). To date studies have not used objective forms of measuring changes in free-living physical activity (FLPA). The aim of this study was to compare FLPA between two groups who received either supervised exercise and auricular acupuncture (EAA) or exercise alone (E).

Methods: 51 patients with non-specific LBP [mean±SD=42.8±12.4 years] wore an accelerometer for 7 days at baseline, end of the intervention (week 8) and follow up (week 25). FLPA variables were extracted: % time (hours) spent in postures; daily step count and cadence. Data were analysed using SPSS (v15). Repeated measures ANCOVA were performed using a mixed linear model.

Results: There was no difference in daily step count between the two groups at any time point (E, mean±SD, week 1, 8197±2187; week 8, 8563±2438, week 25, 8149±2800; EAA, mean±SD, week 1, 8103±1942; week 8, 8010±2845, week 25, 8139±1480, p=0.9) or cadence. No differences in postures were noted, apart from time sitting/lying which was shorter at week 25 in the E group (p=0.006).

Conclusions & Implications: Supervised exercise classes, with or without acupuncture, do not produce changes in FLPA in the short term or longer term in people with LBP. This suggests more effective ways should be sought to encourage the patient to incorporate activity into their daily lives. These findings have informed the design of two walking intervention trials for LBP patients.

Conflict of Interest: None

Sources of Funding: Research and Development Office, Northern Ireland, Strategic Priority Fund, Department of Employment and Learning, Northern Ireland.

Background & Purpose: Clinical guidelines support physical activity for people with chronic low back pain (CLBP); walking is an ideal form of physical activity as it is easy to do, requires no special skills and is achievable by virtually all ages with little risk of injury but there are no current evidence-based structured walking programmes (WP) for this population. The purpose of this study was to develop a WP for CLBP patients in preparation for a proposed randomized controlled trial.

Methods: An 8-week structured WP was developed using Intervention Mapping (IM) principles:

literature review,

Results: Both the CLBP patients and physiotherapists interviewed endorsed walking as a suitable form of physical activity, and identified possible barriers as fear avoidance, exacerbation of pain, behavioural change, motivation, time, personal safety and adverse weather. The pilot study found 90% compliance with the WP. Descriptive analysis of change scores showed improvements at 8-weeks in all self reported outcomes and objectively measured physical activity and functional capacity.

Conclusion: Intervention Mapping was successfully used to develop a WP intervention for chronic LBP, the efficacy of which is being evaluated in a randomized controlled trial.

Background & Purpose: Current clinical guidelines support physical activity programmes for people with low back pain (LBP), but a major factor limiting their efficacy is the patient’s level of adherence, difficult to assess using self-report, and the lack of objective data on activity levels in this population. This study investigated differences in the self-report and objective activity levels of LBP patients and age-matched controls.

Methods: 20 patients with non-specific LBP [5 male, 15 female; mean (SD) age = 43.2 (12.1) years] and 20 healthy controls [10 male, 10 female; mean (SD) age = 39.6 (10.9) years] wore the activPAL™ uniaxial accelerometer on the anterior thigh during waking hours for 7 days, and completed the 7-Day Physical Activity Recall Questionnaire (7DRQ). Data were analysed using SPSS (v12).

Results: There was no difference between groups in energy expenditure as measured by the 7DRQ (p> 0.05), but the activPAL™ data showed LBP subjects expended significantly less energy than controls (p=0.004) over the 7-day period, and failed to reach the recommended 10,000 steps per day [mean (SD) = 8067.9 steps (2581.7)] compared to controls [mean (SD)= 10,864 (3,570.3); t = 2.84, p=0.007)]. The LBP subjects also had a significantly lower mean cadence (p=0.004), a lower walking index (p=0.001), and took significantly more short walks (0–100 steps) and less long walks (> 100 steps) than controls (p< 0.05).

Conclusions & Implications: People with LBP are less physically active than age-matched controls, and this is more evident with objective than subjective evaluation. These findings have informed the design of a targeted walking programme for LBP patients.