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MessagePosté le: Jeu 27 Sep - 07:01 (2018)    Sujet du message: are doing so not to make themselves Répondre en citant

One of the cool things about this study is that they provided data on individual changes. Group means don’t always provide a good picture of the magnitude of change that can occur at an individual level. What they found was that economy for rearfoot strikers was better when rearfoot striking for almost all individuals at the sow and medium speeds, and for roughly 2/3 of individuals at the fast speed. “Forefoot” strikers were split roughly 50-50 at the slow speed in terms of whether rearfoot or forefoot was more economical, but more tended to do better with a rearfoot strike at the higher speed. Similarly, about 75% of the habitual RF strikers tended to burn less carb with a rearfoot strike at all speeds (slightly less at the fastest), whereas patterns for the forefoot strikers were more evenly split. If you are a heel striker, switching to a forefoot strike Adidas NMD Mens will likely lead to reduced economy, at least until you become used to the new pattern. But, it’s not likely that you will become more economical with a forefoot strike even with practice (remember, Adidas ZX Flux Womens there was no significant difference between habitual rearfoot and “forefoot” strikers when using their habitual foot strike). Economy is probably not a great reason heel strikers to mess around with their foot strike.If you Nike Air Vapormax Mens are a midfoot striker, as were most in this study, it probably doesn’t matter much what your foot is doing. Forefoot and heel strikes are equally economical. This doesn’t surprise me much since a midfoot strike is kind of a middle ground between forefoot an heel striking (in fact, my guess would be that they might use multiple foot strike types when they run).There was a tendency for forefoot strikers to burn more carbs. The authors reference a paper I published which showed that midfoot and forefoot strikers tend to switch to a heel strike late in a marathon. Thus, if your plan is to race a marathon, there may be an advantage to a heel strike (a mild heel Adidas Superstar Mujer strike I’d guess).This study was conducted on a treadmill, so we do have to be careful about extrapolating the results to a non-compliant, harder surface like a road.Now, one Nike Air Max 1 Womens part of this study that I haven’t mentioned up to this point is that the authors also measured some kinematic variables. Two of the variables they measured were stride length and stride rate. The focus of the study was to compare running economy, but my guess is that most people considering switching foot strike are doing so not to make themselves more economical, but do so because they are dealing with some kind of injury and think that a switch might help. People generally don’t take up barefoot running out of a desire to race faster, they do so because they either enjoy it or have found that running in shoes just does not work for them. When groups were combined, they found that rearfoot strikers tended to Adidas Superstar Womens take longer and slower strides (about 2% longer, and 2% slower). Previous research has shown that an increase in stride Nike Air Presto Mens rate of even just 5-10% can reduce loading on the knee and hip (again emphasizing here that there’s more to running form than just foot strike!). So, there my be a tradeoff whereby a forefoot strike may at times be less economical for some individuals, but they may benefit in other ways such as via a shorter, quicker stride with reduced loading of the knee/hip (but possibly increased loading of the foot and ankle).As always, I come back to the individual. If you’re a forefoot striker, there’s probably not a big benefit to trying something else except maybe if you plan to race a marathon or if you have injury issues that can be linked to your contact style (foot, ankle, calf problems perhaps). If you are a rearfoot striker, you’re probably not going to become an elite runner by switching your foot strike. You www.neonray.co.uk may, however, shorten Nike Air VaporMax Womens your stride up a bit which could be good for other reasons (e.g., reduced loading). Consider the tradeoffs, and figure out what’s best for you and your needs.

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