A letter to the Editor-in-Chief expresses concern about the study by Iverson et al published in the June 2008 issue of JOSPT. While the letter writers appreciate the creative exploration of the authors, they are concerned with limitations of the methods and potential transferability of the findings of this clinical prediction rule for lumbopelvic manipulation for treating patients with patellofemoral pain syndrome.

J Orthop Sports Phys Ther. 2008; 38(11):722. doi:10.2519/jospt.2008.0205

KEY WORDS: clinical prediction rule