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Conference

GK Fitzgerald, PT, OCS, is Assistant Professor, Allegheny University of the Health Sciences, Philadelphia, PA 19083 (fitzgeraldk@hal.hahnemann.edu).
GM Karst, PhD, PT, is Associate Professor and Assistant Director, Division of Physical Therapy Education, University of Nebraska Medical Center, Omaha, NE 68198-4420 (gmkarst@unmc.edu).
T Malone, EdD, PT, ATC, is Associate Professor and Director, Division of Physical Therapy, University of Kentucky, Lexington, KY 40506.
KE Wilk, PT, is National Director, Research & Clinical Education, HEALTHSOUTH Rehabilitation Corporation, and Associate Clinical Director, HEALTHSOUTH Sports Medicine & Rehabilitation Center, Birmingham, AL 35205; Director of Rehabilitative Research, American Sports Medicine Institute, Birmingham; and Adjunct Assistant Professor, Marquette University, Programs in Physical Therapy, Milwaukee, Wis.
JM Rothstein, PhD, PT, FAPTA, is Editor, Physical Therapy.

This excerpt was created in the absence of an abstract.

In "Timing and Intensity of Vastus Muscle Activity During Functional Activities in Subjects With and Without Patellofemoral Pain," Powers, Landel, and Perry test a commonly held notion underlying current treatment of patients with patellofemoral pain. With Editor Jules Rothstein, G Kelley Fitzgerald, Greg Karst, Terry Malone, and Kevin Wilk consider the implications when the mechanisms used to explain treatments are not viable—and when there are no data on the effectiveness of those treatments.

Rothstein: As early as the first two sentences of their introduction, Powers and colleagues make the assumption that a disturbance of the extensor mechanism causes patellofemoral pain. Do you find this in your own practice?

Malone: First, what is meant by "disturbance"? It's a difficult term to define. "Alteration of function" might better reflect the phenomenon.

Rothstein: Alteration of what specific function?

Malone: Lower-extremity function related to quadriceps femoris muscle activity.

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Timing and Intensity of Vastus Muscle Activity During Functional Activities in Subjects With and Without Patellofemoral Pain

Christopher M Powers, Robert Landel, and Jacquelin Perry
Physical Therapy 1996 76: 946-955. [Abstract] [PDF]