The influence of running speed on ankle and knee joint moments

I have long suggested that the number one biomechanical risk factors for an overuse running injury and determinate of running economy is joint moments. That is generally affected by variations in joint axes positions. The loads in the tissues and how hard a muscle has to work is determined by the joint moments. Different ways […]

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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 […]

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The Re-emergence of the Minimal Running Shoe

This just turned up in my alerts “The Re-emergence of the Minimal Running Shoe” …. hmmmm, I was puzzled. I thought the opposite was happening and maybe I had missed a swing back the other way. For example a few months ago, Lower Extremity Review covered it this way: The rise and fall of minimalist […]

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“Barefoot Running and Hip Kinematics: Good News for the Knee?”; what about “Bad News for the Ankle”?

I have previously had a dig at the nature of the titles of a number of scientific papers, for example, this paper I previously reviewed was titled: “Forefoot strikers exhibit lower running-induced knee loading than rearfoot strikers“; when it could have just as easy been titled “Forefoot strikers exhibit higher Achilles tendon loading than rearfoot strikers“ […]

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The Truth about …..

How often have you seen posts in running forums or in the running crankosphere blogosphere, that are headlined with something like “The Truth about….. “. Every time time I read one of those, more often than not it easily debunked pseudoscientific nonsense that people are actually gullible enough to believe. I only raise this as in […]

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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 […]

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Genetics and Running Economy

The cause of an overuse injury in running is that the cumulative load on the tissues is beyond what the current state of the tissues can tolerate, so it breaks. Historically the focus has always been on the cumulative load and its only been more recently that the focus has been on the state of […]

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Muscle strength in shod, minimalist and foot orthotic wearing runners

I going to start off with this image¹: There is plenty of the usual propaganda and rhetoric about foot orthotics weakening muscles in the crankosphere blogosphere, therefore they are evil: Truth or lie? I already addressed the issue of running shoes weakening muscles (they don’t); but that has not stopped the fan boys still claiming that they […]

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The effect of forefoot varus on the hip and knee and the effect of the hip and knee on forefoot supinatus …

…. say what? This study, that I will get to eventually, gives me the opportunity to address an issue I have been wanting to get to for a while, so the appearance of the research was timely. The issues surrounding forefoot varus and forefoot supinatus, even just not only on the terminology, but the diagnosis […]

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Clustering of foot strike patterns when running

While it is well known that the foot strike pattern does vary with velocity, it is not the sole determinant of the foot strike pattern as many elite runners heel strike when running fast and a runner’s self determination of their foot strike pattern appears to be poor. However, the data that quantifies velocity and […]

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Will the first sub 2 hour marathon be run barefoot?

That is the claim in a new book; 1:59 The Sub-Two-Hour Marathon is Within Reach – Here’s how it will go down and what it can teach all runners about training and racing by Philip Maffetone. I have long had an interest in this and followed many stories and speculation on when and how it […]

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Runners Beliefs About the Risk Factors for Injury

An individual’s health beliefs can be both a hindrance and an aid to the prevention and clinical management of health issues. A runners beliefs about the risk factors for running injuries are part of that wider context of health beliefs, so it was good to see a study starting to explore those issues: What Do […]

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Risk Factors for Medial Tibial Stress Syndrome

A number of studies have looked at risk factors for medial tibial stress syndrome. I have blogged about a couple of recent ones here and here. When there are enough prospective studies on a topic, there is time for a meta-analysis and systematic review to pool all that data. Here is a new one on […]

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Timing of ‘heel off’ in different running shoes

In the context of some of the issues that I wrote about yesterday concerning the problems with the “pronation” paradigm as the basis for prescribing running shoes, a number of years ago we decided to do a study looking at how a different parameter might be affected by the so-called ‘motion control design’ features of […]

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Prescribing Running Shoes Based on Arch Height

I think we have known for a while that the data supporting a prescribing of running shoes based on the “pronation” paradigm is either lacking evidence or not supported, not withstanding the largely superficial understanding of the concepts and the superficial interpretation of the various studies and their implications. Some of the studies on this […]

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