Running and Knee Pain

Kinetic chian theory helps clinicians understand the relationship between pain site and pain source. This article highlights the role of the hip & knee movement in PFP during runnning. It compliments other similar articles and is in agreement that hip abduction and rotational dysfunction at the hip are consistant patterns in the PFP poulation.

Proximal and Distal Influences on Hip and Knee Kinematics in Runners With Patellofemoral Pain During a Prolonged Run

Dierks, Tracey et al, 2003

Introduction:

Cross-sectional experimental laboratory study.

Aim:

To investigate the relationships between hip strength and hip kinematics, during prolonged treadmill running in runners with and without patellofemoral pain syndrome (PFPS).

Method:

Twenty recreational runners with PFPS (5 male, 15 female) and 20 matched uninjured runners participated in the study. Hip abduction and hip external rotation isometric strength measurements were collected before and after running. Lower extremity kinematic data were collected at the beginning and end of the run. Two-way repeated-measures analyses of variance (ANOVAs) were used for analysis.

Results:

Both groups displayed decreased hip abductor and external rotator strengths at the end of the run. PFPS group displayed significantly lower hip abduction strength compared to controls.

Conclusion:

Runners with PFPS displayed weaker hip abductor muscles that were associated with an increase in hip adduction during running. This relationship became more pronounced at the end of the run.

  • August 2008 | volume 38 | number 8 | journal of orthopaedic & sports physical therapy.