Nike have created the midsole with a rocker-like construction. The midsole geometry has been optimised to make long runs feel easier. The exceptional levels of energy return create a propulsive feel to make the miles feel easier too. The men’s midsole height is 36.6mm to 27.6mm and the women’s midsole height is 34.2mm to 25.8mm. Nike increased the stack height and midsole thickness of the Invincible Run in comparison to other models so there’s more foam underfoot for even more cushioning. ZoomX also delivers unparalleled levels of underfoot comfort. Softer foams can help reduce the stress that goes through joints and muscles as a result of less flexion in the leg. ZoomX foam is used in the Invincible Run as it delivers an ultra-soft underfoot feel to make the miles feel less impactful. So, why stop there? ZoomX foam has benefits beyond just aiding fast-paced runs. Since then it’s been used to make the midsole of other Nike models which are the epitome of speed: Vaporfly Next%, Alphafly, Zoom Pegasus Turbo and Tempo Next%. ZoomX first appeared in the Nike Zoom Vaporfly 4% in 2016. First used in shoes to help achieve the goal of breaking the 2-hour marathon barrier, ZoomX foam has traditionally been used in Nike models that were designed purely for fast-paced running. Despite delivering an incredible 85% energy return, ZoomX foam feels supremely comfortable underfoot and ultra plush. However, this is not the case with ZoomX. Normally softness is compromised when a foam delivers amazing energy return. Originally used in aerospace innovation, it’s also softer and more responsive than any other Nike foam. ZoomX foam is Nike’s lightest midsole foam. The ultimate shoe for long distance training ZoomX Foam

Everything about this creation is designed to help you run further and longer with more ease than ever before. The design and materials used in the Nike ZoomX Invincible Run is a product of the commitment they have to help runners keep going. Nike is simply proving that advancements in technology, materials and knowledge of biomechanics can help aid running footwear design and improve the likelihood of a runner achieving their goals with less obstacles in the way. Runners should again take note that other factors will be at play when an injury occurs and a shoe alone cannot completely eliminate the chances of one happening. The “Nike Run Fearless System” appears to be producing footwear which is independently proven to reduce the chances of injury. The results showed that the Nike ZoomX Invincible Run showed no statistically significant difference in the incidence of running-related pain compared with the Nike React Infinity Run in the original study. Each runner completed a total of 44 runs and a total of 104,248km were completed by the group. This involved 314 runners doing variable training over a 12-week period.

The study, conducted in 2019 with 226 men and women during a 12-week running programme, found that runners wearing a Nike React Infinity Run missed 52% fewer consecutive running sessions (3 or more) due to running-related pain than those running in a Nike Air Zoom Structure 22.Īn additional study was conducted in 2020 with the Nike ZoomX Invincible Run to assess its effectiveness. It’s best to start with an external study that was previously done on the Nike React Infinity Run Flyknit. Let’s look at the science behind the Nike ZoomX Invincible Run. 'Our North Star is to continue to move the needle in terms of how we reduce the risk of injury' ~ Matt Nurse, VP, Nike Sports Research Lab Validated by Science The Nike ZoomX Invincible Run Flyknit is a product of the Nike Sport Research Lab and part of the “ Project: Run Fearless” which has a clear goal: to keep runners running. One of Nike’s key objectives is to create running shoes which reduce the chances of getting injured. However, the right running shoes can play a significant role in reducing the likelihood of an injury occurring. Injuries will usually be multifactorial and it is unlikely that there will be one cause of a problem. It’s very easy to do too much or apply too much load too frequently and that’s when problems can occur. To progress in running, we need to apply stress to muscles, tendons and ligaments so that they adapt and get stronger. Injuries are unfortunately part and parcel of the sport. In the words of Nike, they are on a mission to keep runners running. Nike ZoomX Invincible Run Research & Development Ronhill - Best for the Rainy & Windy Days

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