Le blog de Daniel A. Dubois LE BAREFOOT RUNNING | COURSE Ã PIED, CONSEILS RUNNING ET COURSES Ã PIEDS : LE BLOG JIWOK (crédit photo : cancocom ) Le barefoot running est une discipline venant des Etats-Unis et qui consiste à pratiquer la course à pied (running) pied-nu (barefoot) ou avec des chaussures « minimalistes ». Notre podologue du sport a testé pour vous cette pratique. Cet article a pour objectif de mettre en lumière les inconvénients et les bienfaits de cette pratique, il faut savoir à ce jour qu’il n’y a pas d’études approfondies sur le sujet. Il y aura donc une approche très personnelle de cette discipline. Vous pourrez ainsi pratiquer ou non le barefoot pendant vos séances d’entrainement Jiwok . 1) Débuts difficiles Mon 1er contact avec le barefoot running fut très mauvais et remonte à août 2010 lors d’un voyage à New York. Pendant la nuit, souffrant du décalage horaire, mon escapade ratée me turlupine beaucoup. Fort de ces convictions à mon retour en France je me prépare un petit entrainement progressif pour m’habituer à mes chaussures minimalistes. Daniel BENJAMIN Podologue du sport
Copper Canyon Copper Canyon History[edit] The Spanish arrived in the Copper Canyon area in the 17th century and encountered the indigenous locals throughout Chihuahua. For the Spanish, Mexico was a new land to explore for gold and silver and also to spread Christianity. Climate[edit] The alpine climate of the mountainous regions of Copper Canyon has moderate temperatures from October to November and March to April. Flora and fauna[edit] The Sierra Tarahumara Occidental region contains some twenty-three different species of pine and two hundred different species of oak trees. Threats to the ecosystem[edit] Due to increases in human population, there are many threats to the ecosystems of the Sierra Tarahumara Occidental region. Open-pit mining for copper, gold and other metals not only produces air pollution from smelters, but has been linked to the serious decline of the Tarahumara Frog (Rana tarahumarae). Conservation is underway, but remains informal and slow. Indigenous people[edit] Tourism[edit]
Merrell Barefoot Shoe Can Cause Foot Injury | The Legal Examiner Central Pennsylvania The title of a review of Merrell’s Women's Barefoot Run Pace Glove shoe on the product page reads, “Don’t run in these! They broke BOTH my heel bones!” After only seven days of running in these sneakers, one woman is suffering painful fractures in both of her heel bones. She is seeking legal counsel in response to these injuries. Unfortunately, this runner is not alone. Why didn’t Merrell make more of an effort to stop these injuries from happening to women who buy the Barefoot Run Pace Glove? Foot Strike Pattern and Injury Rates | Running Research Junkie Like the running economy and footwear type issue, I have been meaning to write for a while an article that summarizes the studies on the differences in injury rates between heel strikers and non-heel strikers; but before I got to doing it another two studies appear, so its worth writing about those. To date we have 4 studies (now 6) that have looked at this: Daoud et al (2012) was a retrospective review of 52 almost elite level track runners (that are not close to being representative of typical runners) which found the injury rate in the heel strike group was almost double the forefoot striking group. The first new study is by Grier et al and is being presented at next weeks American College of Sports Medicine meeting, was also a retrospective study design. They looked at 1332 soldiers of which 17% were wearing minimalist running shoes. As always, I go where the evidence takes me until convinced otherwise.
Foot strike patterns of recreational and sub-elite runners in a long-distance road race - Journal of Sports Sciences - Although the biomechanical properties of the various types of running foot strike (rearfoot, midfoot, and forefoot) have been studied extensively in the laboratory, only a few studies have attempted to quantify the frequency of running foot strike variants among runners in competitive road races. We classified the left and right foot strike patterns of 936 distance runners, most of whom would be considered of recreational or sub-elite ability, at the 10 km point of a half-marathon/marathon road race. We classified 88.9% of runners at the 10 km point as rearfoot strikers, 3.4% as midfoot strikers, 1.8% as forefoot strikers, and 5.9% of runners exhibited discrete foot strike asymmetry. Rearfoot striking was more common among our sample of mostly recreational distance runners than has been previously reported for samples of faster runners. Keywords Related articles View all related articles
Health - James Fallows - Our Eyes Have Adjusted ... Hundreds of messages and photos have arrived, in response to two previous items (one, two) about the transformation in the physical types Americans have gotten used to seeing in daily life. I will start with these two. First, a reader who was raised in America but now lives in Australia (and has changed citizenship) sends this image from a record jacket. An image from the Library of Congress, 'Race, 4th of July, 1941, Vale, Oregon' (the last stop on the Oregon Trail). The people in this photo, if they're still alive, would now be in their 80s. For what it's worth, Australia has its version of the same problem. 2) A reader who is very familiar with Hawaii sends this cautionary tale: In my youth [Baby Boomer era], poor people were skinny because they couldn't afford enough to eat. As it happens, I know the book being referred to here. More in the queue.
New Study Reaches Different Conclusion On Kenyan Foot Strikes Three years ago, a Harvard team including evolutionary biologist Daniel Lieberman, Ph.D., published a paper in Nature showing a high percentage of forefoot striking among Kenyan runners, adults and adolescents, who had grown up barefoot. The paper led many to conclude that humans had evolved to be forefoot/midfoot runners, and not rearfoot runners. Now a research group from George Washington University has conducted a similar analysis of another group of habitually barefoot Kenyans, and reached the opposite conclusion. Among 38 barefoot Daasanach tribe members from northern Kenya (19 men, 19 women), 72 percent landed on their rearfoot when running barefoot at a self-selected, comfortable pace. The GWU team did confirm one central Lieberman finding. “Our data support the hypothesis that a forefoot strike reduces impact loading,” they wrote. The GWU data also supported the notion that running speed affects landing. GWU Study, 2013: Percent Rearfoot Strikers (All Barefoot)
Should We Heel Strike When Walking? | TREAD LIGHTLY I occasionally get emails in which I’m asked the question in the title of this post: should we heel strike when walking? Occasionally people express frustration that they seem to be unable to avoid heel striking when they walk, even if barefoot. Now, I don’t even necessarily think heel striking is all bad even when running (if moderate and not paired with a big overstride), but when it comes to walking, heel striking is completely normal, even without shoes on your feet. It’s important to recognize that walking and running are totally different gaits from a biomechanical perspective, and what you do in one doesn’t really translate directly to what you do in the other. You’ll typically hear walking described as a heel-toe gait, whereas running tends to be more variable depending on things like footwear (or lack thereof), surface, speed (e.g., sprinting is almost always a forefoot contact), etc. The reality is a bit more complicated than what is described above. Still don’t believe me?
âOn the Runâ âAmazing Short Film from New Zealand | Natural Running Center Video still from "On the Run":Hillwork exercises build leg strength and elastic recoil. Every now and then, you come across an old movie or documentary that stops you right in your tracks. “On the Run,” a 1979 documentary about New Zealand’s legendary running coach Arthur Lydiard and his training methods is one such treat. In this 19-minute short film, you are witness to some amazing footage as Lydiard’s champion runners show how it’s done– in their training and racing, You can watch the film here in its entirety. The film link was sent me from my friend and colleague Max Lockwood who teaches running form at Vida Gyms in Washington, D.C. For those who aren’t completely familiar with Lydiard, here’s a short passage about the influential Kiwi from the new book Tread Lightly, by Pete Larson and Bill Katovsky: Two other Lydiard runners won distance medals in Rome. Snell winning the 1,500 meters in the Tokyo Olympics; it was his second gold of the Games. Back to “On the Run.”