Philip Malloy

Assistant Professor, Physical Therapy

By appointment

About Me

Dr. Malloy received a Bachelors of Health Science in 2002 and Masters of Science in Physical Therapy from Nazareth College of Rochester, NY in 2003. He completed his Ph.D. in Clinical and Translational Rehabilitation Science with an emphasis in biomechanics at Marquette University in 2017. After finishing his Ph.D. he  completed a 2-year postdoctoral fellowship in the Orthopaedic Biomechanics Laboratory in the Department of Orthopaedic Surgery at Rush University Medical Center in Chicago, IL. Dr. Malloy joined the Arcadia faculty in 2019 and directs the kinesiology and biomechanics content in the Department of Physical Therapy. Dr. Malloy is also a member of the Hip Preservation Research group in the Department of Orthopaedic Surgery at Rush University Medical Center in Chicago, where also holds a visiting assistant professor position in Rush Medical College. His research focus is in biomechanics and image based modelling, where he serves as the director of motion analysis research for the Hip Preservation Research group at Rush. Dr. Malloy's primary research interest is in biomechanics, in particular understanding the relationship between bone structure and human movement as it pertains to young and active adults with hip disorders. His long term research goal is to advance the diagnosis and treatment of hip disorders through rehabilitation approaches administered both both and after surgery.  

Areas Of Focus

Hip pathology, orthopaedic biomechanics, and arthroscopic hip surgery

Education History

Nazareth College of Rochester, NY 2002

Health Science

Nazareth College of Rochester, NY 2003

Master of Science , Major in Physical Therapy

Marquette University 2017

Clinical and Translational Health Science, Major in Biomechanics

Research Summary

Dr. Malloy began his career as a full time physical therapy clinician working in a variety of orthopaedic and sports medicine settings around the United States. During this experience he had the opportunity to work with the top Orthopaedic surgery pioneers in the treatment of hip pathology in some of the countries largest hip preservation centers. During his clinical practice years, Dr. Malloy treated over 500 patients with hip disorders both before and after surgery. In particular, Dr. Malloy has extensive experience with the treatment of  femoroacetabular impingement syndrome (FAIS), which is considered a motion related structural disorder of the hip that commonly affects young individuals and active adults. Dr. Malloy helped develop the postoperative rehabilitation physical therapy guidelines following hip arthroscopic surgery for FAIS through his extensive clinical experiences, which were the focus of his early research career. These experiences in treating patients with FAIS motivated him to complete his Ph.D. in order to begin to study the hip disorder that he treated daily in his clinical practice. 

Dr. Malloy's primary research interest is in biomechanics of the hip joint, in particular understanding the relationship between hip joint structure, motion and forces in patients with hip disorder. He conducts clinical and basic science studies in patients with FAIS using three-dimensional (3D) motion analysis techniques and magnetic resonance imaging (MRI). These techniques are complimentary, as the use of MRI allows for patient specific reconstruction of 3D bone and soft tissue structures that can be used as inputs to create patient specific biomechanical models to quantify joint level function during common activities, such was walking and squatting tasks. Dr. Malloy's Ph.D. studies looked to understand the biomechanical function of the hip joint in patients with FAIS, and the focus of his postdoctoral research was to better model the structure of the hip joint through the use of MRI. His current research focuses on understanding the structure and function relationship of the hip joint to better determine the mechanism through which FAIS contributes to the development of hip osteoarthritis (OA). He also is involved in the development of new MRI based methods to advance the quantification of structural disorders of the hip in order to advance the diagnosis and surgical treatment of these disorders.

He currently directs funded motion analysis and imaging studies at Rush University Medical Center as part of the Hip Preservation Research Group of which he has been a member for the last 13 years. Dr. Malloy also holds a visiting professor appointment in Rush Medical College and is a part time research scientist in the Department of Orthopaedic Surgery at Rush University Medical Center. Dr. Malloy has over 20 peer reviewed publications in the field of biomechanics, imaging, and hip disorders and has received research funding from both private philanthropy, industry, and research foundations such as the The Foundation for Physical Therapy Research and Aircast Foundation.