Heat Wrap May Help Back Pain
Workers in Study Reported Less Low Back Pain After Using Heat Wraps
Jan. 23, 2006 -- About half of all working-age Americans experience low back
pain in any given year, costing the U.S. economy between $20 and $50 billion
annually in lost productivity.
But an over-the-counter approach to controlling back pain just may help get
some of these people back to work quicker, researchers from the Johns Hopkins
University School of Medicine are reporting.
In their study, hospital employees seeking treatment for work-related low
back pain reported significantly less pain when continuous low-level heat wraps
were used along with standard treatment.
The study was paid for by Procter & Gamble, manufacturer of the
"The people who used the heat wraps had more mobility with less
pain," researcher Edward J. Bernacki, MD, tells WebMD. Bernacki directs the
division of occupational medicine at Baltimore's Johns Hopkins School of
Measuring Pain Intensity
The small study included 43 patients treated at the occupational injury
clinic for acute low back pain. People with a history of chronic back pain or
back problems, other chronic body pains, or back surgery were not included in
Eighteen of the patients received education regarding back therapy and pain
management alone. The other 25 received the same intervention along with the
heat wraps, worn on the lower back for eight hours during the day for three
People in both groups took pain relief medications as needed.
Both groups were assessed for pain intensity and pain relief four times each
day during the three treatment days. Pain was also measured during follow-up
visits about one and two weeks later.
The researchers reported that the heat-wrap-treated patients "had
significantly reduced pain intensity, increased pain relief, and improved
disability scores during and after treatment."
The study appeared in the December 2005 issue of The Journal of
Occupational and Environmental Medicine.
Heat Wraps Don't Heal Damage
Although most adults experience low back pain at some point in their lives,
in about 90% of cases the pain resolves on its own within two months,
regardless of treatment, pain treatment expert John Loeser, MD, tells
"Voltaire said it best," Loeser says. "He said, 'Nature cures,
but doctors get the credit.' That is really the way it is with back
An effective treatment minimizes pain but doesn't necessarily shorten the
course of the injury, he says, adding that many patients get a good deal of
pain relief with heat wraps.
"Heat wraps don't heal damaged tissue, but they do make many people feel
better," he says. "And that allows them to resume their normal
activities. If a treatment controls pain while nature solves the problem, it is
Other Approaches for Pain Relief
Internationally known for his work in pain management, Loeser is a professor
of neurosurgery and anesthesiology at Seattle's University of Washington School
of Medicine. His other recommendations for treating acute low back pain
- Use non-narcotic, anti-inflammatory pain drugs as recommended by your
- Get back to a normal range of activities as quickly as you can, and
minimize bed rest. "There is no organ in the human body that becomes
healthier with bed rest," he says. "From your brain to your back, the
best evidence we have is that activity is more therapeutic than bed
- Exercise wisely. "Don't go out and move pianos, or even swing a golf
club aggressively," he says. "You want to do repetitive exercise that
doesn't involve a lot of sudden twisting or lifting." He says walking,
jogging, swimming, and even cycling are good choices for someone with a sore
- Fire or ice. Some people swear by ice to control the pain of back strain,
while heat works better for others. "Whatever works for you," Loeser