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more about all this in my post The
04-12-2019, 01:44 PM
Post: #1
more about all this in my post The
Let’s start with a post by Joe Maller and the comments that followed it suggesting that these second metatarsal stress fractures seem to be occurring with some amount of frequency in runners who are running in minimalist shoes. Pete was also kind enough to give me a heads up, sending me over this just published case report by Giuliani et al., which describes the occurrence of this fracture in two runners wearing Vibram Five Fingers. My physician colleague, Bob Wilder, who now has my old job as professor and chair of the department of physical medicine at the University of Virginia, and has Nike Air Vapormax Dames a clinical practice made Nike Air Max 2017 Femme up almost exclusively of runners, told me he’s seen only two cases this past year but admits he hasn’t seen a lot of patients in his clinic running in minimalist shoes.I can add my own close to home experience… one of my daughters, Kellyn, who is 13, had one. She greatly enjoys running and has been running her whole life either barefoot or in assorted racing flats that over the years I would scrupulously check to make sure they had no raised heel or arch support. There was no way, I as her mother, with all that I knew from my studies, would ever let her wear traditional running shoes. Now that she’s big enough to wear OESH, that’s what she trains in and only wears flats (track spikes – without the spikes) when racing.Back to Joe Maller’s post. His theory and his nice cartoon video about how these fractures Nike Air Max 98 Mens are happening is not Nike Air Max Classic BW Dam that far from what my research would indicate. Joe believes, and I agree, that these fractures are occurring later in stance, not at impact as Giuliani et al. suggests. But before I delve into my analysis, I need to first review why I believe most all injuries, not just this particular one, occur when the foot is fully planted during midstance, not at impact. From there I can explain why the second metatarsal seems to be more vulnerable than other areas in runners who are running in minimalist shoes.For years, I’d been putting together force plate data with 3-D motion analysis data in walking. Combining these data and evaluating them in light of our clinical information (all the problems that came to our general clinic or to our specific runner’s clinic), we could finally understand how and why we get the Nike Air VaporMax Dam types of repetitive Nike Air Max 2017 Dames injuries we do. Remarkably, this Nike Air Max 95 Femme had never been done before. You could say that the “a-ha” event of all my best research was synthesizing the force plate data with the 3-D motion data—this was the classic 1 + 1 = 3 breakthrough that every researcher hopes to discover. If you’re interested you can read more about all this in my post The Rest of the Story.I first started looking at the forces associated with knee osteoarthritis. But what I found applies to nearly all of the typical injuries we see. The peak forces stressing nearly all the injury sensitive areas of our body occur when our foot is fully planted (not at impact) and fully pronated. The specific forces at the moment of impact are miniscule and sometimes in the complete opposite direction to where injuries occur. More critically, the forces across virtually Nike Air VaporMax Femme every injury Nike Air Max 90 Femme prone area are highest at two Nike Air Max 2017 Mujer points in walking that occur well after impact – when loading weight onto the foot and when lifting the foot off. These injurious forces peak at one point in running – at midstance, well after the peak impact force.
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