Walking halves recurrence of low back pain: trial
New research from Macquarie University could make effective interventions for managing low back pain accessible to more people.
About four million Australians — and 800 million people worldwide — have low back pain, which is a leading cause of disability and reduced quality of life. Around seven in 10 people who recover from an episode go on to have a recurrence within a year.
Now, a new study by Spinal Pain Research Group at Macquarie University has found that adults with a history of low back pain lasted nearly twice as long without a recurrence if they walked regularly.
From treatment to prevention
Professor of Physiotherapy Mark Hancock* and his research team have been investigating ways to shift the emphasis from treatment to prevention to improve the management of back pain, an approach that empowers individuals to manage their own health and reduces the cost to society and the healthcare system.
Far from the bed rest recommended for back pain in the past, current best practice includes the combination of exercise and education, both to treat current pain and to prevent future episodes.
While beneficial, some forms of exercise are not accessible or affordable to many people due to their high cost, complexity and need for supervision.
The WalkBack trial
The WalkBack trial followed 701 adults who had recently recovered from an episode of low back pain, randomly allocating participants to either an individualised walking program facilitated by a physiotherapist and six education sessions across six months, or to a no-intervention control group.
The trial examined whether a program of walking combined with education could be effective in preventing recurrences of low back pain. The participants’ progress was followed for between one and three years to collect information about any new recurrences of low back pain they experienced.
The researchers’ primary aim was to compare the two groups for the number of days before participants experienced a recurrence of back pain that impacted daily activities or required care from a healthcare provider. They also evaluated the cost-effectiveness of the intervention, including costs related to work absenteeism and healthcare services.
The findings have now been published in the latest edition of the international medical journal The Lancet.
Longer pain-free periods
What the researchers discovered could have a profound impact on how low back pain is managed, said the paper’s senior author Hancock.
“The intervention group had fewer occurrences of activity-limiting pain compared to the control group, and a longer average period before they had a recurrence, with a median of 208 days compared to 112 days,” Hancock said.
“The risk of having a recurrence that required seeking care was nearly halved in those in the intervention group.
“Walking is a low-cost, widely accessible and simple exercise that almost anyone can engage in, regardless of age, geographic location or socio-economic status.
“We don’t know exactly why walking is so good for preventing back pain, but it is likely to include the combination of gentle oscillatory movements, loading and strengthening the spinal structures and muscles, relaxation and stress relief, and the release of ‘feel-good’ endorphins.
“And of course, we also know that walking comes with many other health benefits, including cardiovascular health, improved bone density, maintenance of a healthy weight and improved mental health.”
The amount of walking each person completed was individualised based on a range of factors including their age, physical capacity, preferences and available time. Participants were given a rough guide to build up to 30 minutes, five times a week over a six-month period, Hancock said. After three months, most of the people who took part were walking three to five days a week for an average of 130 minutes.
“You don’t need to be walking five or 10 kilometres every day to get these benefits," Hancock said.
A simple, cost-effective option
The paper’s lead author, Postdoctoral Fellow Dr Natasha Pocovi*, said in addition to providing participants with longer pain-free periods, they found the program was also cost effective.
“It not only improved people’s quality of life, but it reduced their need both to seek healthcare support and the amount of time taken off work by approximately half,” Pocovi said.
“The exercise-based interventions to prevent back pain that have been explored previously are typically group-based and need close clinical supervision and expensive equipment, so they are much less accessible to the majority of patients.
“Our study has shown that this effective and accessible means of exercise has the potential to be successfully implemented on a much larger scale than other forms of exercise.”
To build on these findings, the team now hopes to explore how they can integrate the preventive approach into the routine care of patients who experience recurrent low back pain.
To read the original article written by Georgia Gowing, please visit this link.
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