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"Clinically proven pain relief" for the heel, arch, ball of foot, and lower back is the claim on Dr. Scholl's Tri-Comfort orthotic shoe inserts. The three-quarter-length inserts are designed to "provide support even in tight-fitting or high-heeled shoes." Can inexpensive ($6 to $8) foam insoles with a springy arch solve foot- and back-pain problems? They can relieve aching feet, experts say, but it's not clear whether they'll help most people with lower-back pain.
The summary of research provided by Schering-Plough Health-Care Products, Dr. Scholl's parent company, to substantiate the claim is one two-week, unpublished, non-placebo-controlled study. Anna Floyd, senior principal scientist at Schering-Plough, says a placebo orthotic isn't feasible and the company doesn't publish its product studies.
In the study, independent investigators recruited 183 men and women ages 18 to 65 with chronic, moderate foot pain, including 57 with lower-back pain. ...