Tag Archives: impact reduction

Impact loads in barefoot and shoe running

I currently sitting in Toronto airport waiting for a flight, so will not say anything much on this: The effects of barefoot and barefoot inspired footwear on tibiofemoral kinetics during running Jonathan Sinclair Human Movement. ISSN (Online) 1899-1955, DOI: 10.1515/humo-2016-0022, October 2016 Purpose Continue reading

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Impact Related Factors and Running Injury

I have blogged before (Just How Significant are Heel Impacts at Causing Injury When Running?) and repeatedly commented that the evidence that links impact related factors to running injuries is far from compelling. Continue reading

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Effects of a seven week transition to minimalist footwear

One of the criticisms of some studies comparing the mechanics of minimalist vs traditionally shod footwear is that the intervention is acute and the effects were not measured after a period of appropriate acclimation to the different conditions. The results may or may not be the same after that acclimation or transition – we simply do not know if they would have been the same or not. Of course, those who don’t like the results of the study will point that out, but will ignore it if they like the results of the study Continue reading

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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 a running shoe. Unfortunately, the study never really got completed so won’t be published mainly because of the pressures of academic life, workload and other factors having to be given priority especially when a project is unfunded. I have to acknowledge my colleague Dan Bonanno for working on this project as well Continue reading

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Review of Lieberman et al’s (2010) paper in Nature on Barefoot Running

Since starting this blog I have tried to cover every relevant piece of research when its published as well as summarize some topics in the context of what the evidence is saying. I have missed a few and still do have a bit of a backlog of recent ones. It all comes down to allocating time to do it ( I do have a life, a family and have to make a living ) Continue reading

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Rearfoot and Midfoot/Forefoot Impacts in Habitually Shod Runners

When comparing the biomechanics of different foot strike patterns, these reseachers set out to answer the somewhat ambiguous question of whether the biomechanical differences are due to changes in footwear, foot strike, or a combination of the Continue reading

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Barefoot vs shod running: Effects on tibia loads

One of the key reasons often suggested for transisitioning to a barefoot running technique is to reduce the impacts loads, which is only an important issue if you actually believe there is even a problem with impact loads and running . I previously reported a study that showed that tibial strain was actually greater when barefoot running vs shod running Continue reading

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What happens during the swing phase that is related to impact loads?

The biomechanics of peak impact loads and loading rates continue to be researched on the assumption that they are related to an increased risk for injury. Continue reading

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Decreasing vertical impact loads via increasing ankle loads in Chi Runners

Hot on the heels of the systematic review last week that confirmed the adage that you can’t decrease the load in one tissue without increasing it in another and that different running techniques load different tissues differently , we have another study: A Comparison of Negative Joint Work and Vertical Ground Reaction Force Loading Rates between Chi Runners and Rearfoot Striking Runners Donald Lee Goss & Michael T. Gross J Orthop Sports Phys Ther, Epub 9 September 2013 Study Design Observational Continue reading

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Just How Significant are Heel Impacts at Causing Injury When Running?

I have always really struggled to understand why there is so much fuss about reducing impact forces to treat and prevent overuse injuries in runners. Continue reading

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