By Michelle Robin, DC
Infrared saunas also have a profound effect on relieving chronic pain. In a 2006 double-blind, placebo-controlled study in the Journal of Pain Research and Management,5 where researchers found infrared heat therapy, over a seven week period, to reduce chronic lower-back pain by 50 per cent, without any negative side effects.
Participants were asked to rate their overall pain without movement, as well as pain during various movement postures, such as bending forward, back, right, left and rotating the spine. The results showed all measures of pain were reduced approximately in half, with the greatest reduction experienced toward the end of the seven-week period. This points toward the fact that continuing treatment beyond seven weeks may lead to even greater pain reduction.
A 2002 study, published in the journal, Spine, by a researcher at the New Jersey Medical School (UMDNJ) found heat therapy to be more effective than pain medication for lower-back pain relief. In fact, pain relief was significantly greater in the group that underwent infrared heat treatment as compared to the group who were only given pain medication. According to the study, some members of the group that received infrared heat treatment experienced pain relief as early as the first day of treatment, and the effects lasted more than 48 hours after treatment.
Infrared heat has also been proven to help with several forms of arthritis. For example, in a 2008 study in the Journal of Clinical Rheumatology, researchers found reductions in both pain and stiffness after only four weeks of treatment for several types of arthritis.
In addition, the Journal of the American Geriatrics Society reported the results of a study, which showed infrared heat treatment reduced pain and increased the ability in elderly patients with degenerative osteoarthritis (DOA) of the knee. This double-blind study on DOA demonstrated pain reduction for the treatment group by more than 50 per cent, with no significant pain reduction in the placebo group. Although the study lasted only 10 days, individuals in the treatment group reported no need for pain medication as they were pain free for two months to one year.
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