The effects of distraction on exercise and cold pressor tolerance for chronic low back pain sufferers

Abstract

Distraction has been found to be effective for the attenuation of experimental and acute clinical pain but its efficacy for chronic pain management remains unclear. There are even some suggestions that distraction may be a counterproductive strategy for chronic pain sufferers. In this study we found that a word shadowing distraction task increased the ability of a group of 12 female and eight male chronic low back pain (CLBP) sufferers to carry out a brief (maximum 300 s) step-up exercise that temporarily increased their pain ( P<0.05). This 15% increase in exercise time was not accompanied by an increase in reported pain after the exercise. Interestingly, the same distraction task did not increase the cold pressor (CP) tolerance time for the CLBP group but produced a 26% increase in tolerance time for a pain-free control group consisting of nine females and nine males ( P<0.05). Also, performance on the distraction task during the CP was worse for the CLBP group than the controls ( P<0.05). Although these findings should be interpreted cautiously because of the parameters of the experiment, they do suggest that distraction is a potentially useful technique to assist chronic pain sufferers.