FLEXIBILITY: The StretchTrainer was designed to let people isolate muscles so they can stretch correctly and more thoroughly than stretching on the floor. Stretching from the seated position, users are able to keep their pelvis and knees in place and better stabilize their back. Using their own body weight and by gently rocking backwards in the pivot seat holding onto the handlebar, the user is able to achieve a full stretch in much less time than stretching on the floor.