Hot on the heels of posts on: This modelling on core muscle activation and knee loads. This study that showed that more of a forward lean of the trunk at the hips resulted in less knee loads, greater hip loads and no effect on ankle loads compared to a forward lean at the ankle results in […]
Tag Archives | patellofemoral pain syndrome
Core Muscle Activation and Knee Loads
The ‘core’ is well outside my area of expertise, but I still follow the various cults that think it can cure everything as well as those who think its way overrated. I periodically go back and read this as it appears to me to address all the issues and also this blog post from Cor-Kinetic […]
Patellofemoral Joint Stress during Running with Alterations in Foot Strike Pattern
Déjà vu? Been there, done that? Different Running Techniques Load Different Tissues Differently. Its 6 of one and half a dozen of the other. Etc We aleady know that increasing the cadence reduces knee loads; and leaning forward at the hip decreases knee loads but increases hip loads whereas leaning forward at the ankles also decreases […]
Foot Orthotics and Patellofemoral Pain
The focus in recent times on patellofemoral pain or anterior knee pain in runners has all been on the proximal issues despite two randomized controlled trials showing that distal issues (ie foot orthotics) work (see Collins et al & Eng et al). A number of proximal risk factors have been potentially identified and the concept of load reduction […]
When running, lean forward at the ankle or the hip?
The sensible running technique coaches that I listen to often talk about the forward lean from the ankle when running rather than a forward lean at the hips. Ironically, the fan boys from the various running form cults also often say the same thing, so there must be something to it. I have certainly tried […]
Do novice runners have weak hips and bad running form?
The role of what I like to refer to as proximal control issues are taking on increasing importance in running injury management with a number of hip related issues identified as being associated with overuse injuries such as patellofemoral pain syndrome and medial tibial stress syndrome. This new study set out to look at some […]
Increasing cadence and patellofemoral forces
Hot on the heels of the study from last week on Barefoot vs Shod and patellofemoral joint stresses which showed that running barefoot reduced patellofemoral stress by 12%, we now have another new study that looked at patellofemoral loads and cadence: Increasing Running Step Rate Reduces Patellofemoral Joint Forces Lenhart, Rachel L.; Thelen, Darryl G.; […]
Barefoot vs Shod and patellofemoral joint stresses
There is an increasing number of studies on patellofemoral pain syndrome or anterior knee pain in runners and the affects of gait changes on the biomechanics of it. The British Journal of Sports Medicine just published this: Take your shoes off to reduce patellofemoral joint stress during running Jason Bonacci, Bill Vicenzino, Wayne Spratford, Paul […]
Foot ‘Pronation’ and Anterior Knee Pain in Runners
Anterior knee pain or patellofemoral knee pain syndrome is one of the most commonest injuries seen in runners. Excessive foot pronation, either rightly or wrongly, has long been linked to it. The putative model of the mechanism is that if the foot excessively pronates, then the tibia rotates internally too much causing misalignment at the […]
Forefoot strikers exhibit lower running-induced knee loading than rearfoot strikers
One thing that I have been consistent in saying is that different running forms load different tissues differently. From a clinical perspective, this is not a matter of one ‘form’ being better than another, its about what gait changes can be made to reduce the load on any tissues that there are problematic issues with. […]
Effects of “Foot Orthoses” on Running Mechanics in Patellofemoral Pain Syndrome
I have had a couple of emails about this study, mainly in the context that the study does not support the hypothesis I proposed on the potential role of foot orthotics in patellofemoral pain syndrome. Two randomized controlled trials tell us that foot orthotics do work in patellofemoral pain syndrome, so that is not the […]
The Paradox of Patellofemoral Pain Syndrome and Foot Biomechanics
Probably the most common injury seen in runners is “runners knee” – or patellofemoral pain syndrome (PFPS) or anterior knee pain or what it used to be called a long time ago, chondromalacia patallae. Typically the pain is around the patella and is aggravated by activity. The mechanism of the injury is overuse, but there […]