News Tribune sportswriter Kevin Pates (right) tests out the LightSpeed treadmill devised by physical therapist Malcolm Macaulay (left). Using the attached cords, Pates is lifted slightly off the treadmill to allow for faster leg turnover. His effective weight on the device dropped from 128 pounds to 107 pounds. (Bob King / rking@duluthnews.com)
Read the article: Duluth physical therapist develops running aid
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