Biomechanical performance of devices that enhance joint extensibility in the behind-the-back reach test

: Several devices (flexible ladder, towel, cord) have been recommended for use in physical therapy to enhance the range of motion of the joints involved in the behind-the-back reach test. The purpose of this study was to evaluate the biomechanical performance of these devices by measuring the maximum forces applied to the devices during the behind-the-back reach test. The performance of all of these devices during the behind-the-back reach test was remarkably similar.