Labi1995
Inscrit le: 10 Aoû 2018
Messages: 471
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 Posté le: Jeu Sep 12, 2019 3:49 am Sujet du message: and the highly pronated women a |
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| When you walk into a running shoe store, you are typically faced by a wall of colorful, “high-Nike Air Max 90 Dames tech” shoes that are neatly grouped into three categories (sometimes four if “cushioned” is included as a distinct category). These Nike Air VaporMax Mujer categories are: neutral, stability/support, and motion control. How do you choose which shoe is right for you? Well, you might run across the store or on a treadmill for the salesperson, who watches you with an apparently slow-motion equipped eyeball (or if you’re lucky, you get filmed), and they diagnose you as a severe or mild overpronator, a neutral runner, or a supinator. Quick definition – pronation is simply the inward/medial roll of the foot that occurs upon footstrike, whereas supination is when the foot rolls outward rather than inward. Alternatively, they might scan your foot in some way to assess your arch height. One way or another, the goal is to assign you to a shoe from one of the aforementioned categories – high-arched supinators get Nike Internationalist Womens cushioned shoes, severe overpronators with flat feet are placed in motion control Nike Air Max 270 Femme shoes, mild overpronators are placed in stability/support shoes, and neutral runners are placed in neutral shoes. They then bring you a selection of shoes from the appropriate category, you try them on, and you choose the one that feels best. This is the way that it has been done for quite some time, and nearly every shoe manufacturer makes a selection of shoes that fits neatly into one of these groups.What would you say, however, if you found out that these categorizations of running shoes were meaningless? What if the tests employed by the salesperson weren’t very good at determining pronation to begin with? Even more startling, what if the amount that you pronate wasn’t even related to the likelihood that you might get injured? These are the types of questions that have been addressed in Nike Air Max 270 Damenseveral recent scientific publications,Adidas Superstar Femme and which were in turn summarized and reported on in a remarkable article by Gretchen Reynolds on the NY Times Well Blog. The results might be shocking to some, not so shocking to others, and they demand a response from those making the shoes that runners rely on to keep them running safe and injury free.Lets take a look at some of the science. In this post I’m going to focus on a study published on-line in June 2010 by Ryan et al. in the British Journal of Sports Medicine. One of the co-authors of this study, Gordon Valiant, works for the Nike Sports Research Laboratory – he’s the same biomechanist that Alberto Salazar and Dathan Ritzenhein worked with to modify Ritzenhein’s footstrike from heel to midfoot. Keep this in mind as you read this – one of the co-authors works for the biggest sports shoe manufacturer in the world. Nike Air Max Classic BW In their introduction Ryan et al. state the following surprising Nike Air Max Classic BW Damendetail: “…despite over 20 years of stability elements being incorporated in Nike Air Max 95 Femme running footwear there is, as yet, no established clinically based evidence for their provision.” They then go on to point out that “Motion control running footwear has yet to be proven to prevent running-related injuries.” Pretty amazing, isn’t it? Makes one wonder if the shoe makers actually have “proprietary data” supporting these designs, or if the whole pronation-control shoe paradigm is nothing more than a giant marketing gimmick.A total of 105 women were classified as either neutral (51 women), pronated (36 women), or highly pronated (18 women). Now here’s the really interesting part. In a shoe store, the neutral women would be assigned a neutral shoe, the pronated women a stability www.domoreso.fr shoe, and the highly pronated women a motion control shoe – go it? In the study, however, the researchers took each of the three groups of Nike Air Max 270 Femme women (neutral, pronated, and highly pronated), and subdivided them into sub-groups so that one-third would get a neutral shoe (Nike Pegasus), one third would get a stability shoe (Nike Structure Triax – incidentally, the Triax was my first “real” running shoe, assigned by one of those slow-motion eyeballs I mentioned earlier), and the final third would get a motion control shoe (Nike Nucleus). This was done for each of the pronation groupings, so that what we have here is some women in each pronation category wearing each type of shoe (i.e., many of them wearing the “incorrect” shoe for their foot). |
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