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Crossfit

Discussion in 'Break Room' started by Craig Payne, Mar 29, 2014.

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    The risk of injuries among CrossFit athletes: an Italian observational retrospective survey
    Silvio TAFURI et al
    The Journal of Sports Medicine and Physical Fitness 2018 Nov 08
     
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    CrossFit Overview: Systematic Review and Meta-analysis
    João Gustavo Claudino et al
    Sports Medicine; December 2018
     
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    CrossFit and Rhabdomyolysis: A case series of 11 patients presenting at a single academic institution
    Benjamin Hopkins, Daniel Li, Mark Svet, Kartik Kesavabhotla, Nader S. Dahdaleh
    JSAMS; Article in Press
     
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    Press Release:
    Newest Addition to Reebok Nano Franchise Pays Tribute to the
    CrossFitⓇ Community that Helped Create It

    BOSTON, Mass. – May 20, 2019 – Today, the CrossFitⓇ community's chosen performance footwear franchise takes a giant leap forward with the global unveiling of the Reebok CrossFitⓇ Nano 9, the brand’s most dynamic and refined CrossFitⓇ shoe to hit boxes yet.
    Officially dubbed the “Nano for All,” the Nano 9 was built with the CrossFitⓇ community, for the CrossFitⓇ community. During its creation process, Reebok worked closely with CrossFitⓇathletes of all levels from around the world for guidance and feedback in shaping the latest iteration. The result is an evolution in comfort and overall fit. Advanced features of the Nano 9 include:
    • Wearability: CrossFitⓇ specific outsole design that features MetaSplit grooves for better traction and grip
    • Strong Foundation: Wide toe box for comfortable fit and powerful movements
    • Durable Comfort: Flexweave upper provides breathability, security and durability; added cushioning in forefoot for a more comfortable run
    • Ultimate Stability: Minimal drop outsole provides secure footing
    “For the amount and type of training I do, I need a shoe that I don’t have to think about and can trust to offer me the stability, comfort and durability that I need to perform my best,” said Pat Vellner, Reebok athlete and 3 x podium finisher at the Reebok CrossFitⓇ Games. “Reebok’s Nano has always been a shoe that gives me everything I need, and the Nano 9 takes it to the next level. You can tell the designers took the community’s feedback to heart with the latest iteration. I love that it still has all the qualities I’ve come to rely on from the Nano, but it rocks some new features like enhanced traction on the soles and improved cushioning in the forefront that provide a better all-around experience for any type of CrossFitⓇ workout I do.”
    Speaking of the shoe’s development process, Tal Short, Senior Product Manager of Training Footwear at Reebok, says, “We’re proud to unveil a shoe that delivers directly on the needs we heard from the CrossFitⓇ community around the world. As a member of that community myself, I see and experience first-hand the varying demands of these athletes and know how critical having the right footwear is in getting the most out of your workout. That’s why it’s very special for us to release the Nano 9; it’s forged from vital community feedback and designed to perform for anyone, from a CrossFitⓇ beginner to ultimately, the Fittest on Earth.”
    In celebration of the ninth iteration of the Nano, Reebok pays homage to the spirit of camaraderie that the CrossFitⓇ community embodies by highlighting nine individuals – ranging from small-business owners who’ve found CrossFitⓇ as their pastime passion to world-renowned athletes like Pat Vellner and Tia-Clair Toomey, the reigning ‘Fittest Woman on Earth’ – in its “Nano for All” Reebok CrossFitⓇ Nano 9 campaign. The full collection of athletes, imagery and their personal CrossFitⓇ stories can be viewed HERE in a digital “Nano for All” look book. As a consumer extension of this celebration, Reebok is also calling on the community to pay tribute to its fellow members by nominating their CrossFitⓇ inspirations for a chance to win a pair of Nano 9’s. To participate, consumers can post their nomination on Instagram and tag @Reebok #NanoForAllSweepstakes for a chance to win. Terms and conditions apply.
    The Reebok CrossFitⓇ Nano 9 will be globally available on June 12th in four intro colorways on reebok.com/Nano and at select footwear retailers worldwide, with an MSRP of $130. Hi-res images of the Nano 9 can be found HERE.
    Reebok UNLOCKED members will have early access to purchase the new release and have the opportunity to earn points with their purchase that can be redeemed for special rewards. To learn more, visit: https://www.reebok.com/us/reebokunlocked-rewards.
    For more information on the all new Reebok CrossFitⓇ Nano 9, please visit reebok.com/Nano.
     
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    Press Release:
    CROSSFIT REQUESTS RETRACTION OF ERRONEOUS INJURY PAPER

    May 27, 2019

    On May 17, 2019, CrossFit, Inc. sent a letter to the Orthopaedic Journal of Sports Medicine (OJSM) requesting the retraction of a recently published paper, “Likelihood of Injury and Medical Care Between CrossFit and Traditional Weightlifting Participants.” The letter stated that the paper should be retracted because it “is beset with scientific error, cites retracted studies that contained fabricated data and inaccurately cites other studies concerning our CrossFit® brand.”

    The study’s abstract and stated purpose were as follows:
    CrossFit is a popular weightlifting sport, with participants who report significant improvements in physical health; however, others argue that CrossFit exposes participants to an increased risk and severity of injury. We address this through a retrospective cohort study.
    The purpose of this study was to compare the likelihood of self-reported injury and severity in CrossFit and traditional weightlifting in the previous 2 years. We hypothesized that CrossFit participants would have a higher 2-year likelihood of injury and medical care compared with a traditional weightlifting cohort.

    CrossFit’s letter notes that, as with the National Strength and Conditioning Association and American College of Sports Medicine‘s false and baseless publications concerning the CrossFit® brand, this paper is “beset with scientific error.” For example, the OJSM paper cites the NSCA’s fraudulent research on CrossFit (the NSCA’s Devor study), despite that research being first corrected for containing debunked injury claims and then retracted years ago.

    Additionally, the authors fail to define the paper’s fundamental terms, misrepresent their sources, and do not control for exposure. The paper’s conclusions, therefore, are not supported, and its data is meaningless. The publication serves no purpose but to propagate the NSCA’s distortion of the scientific record.

    In conclusion (and of relevance to CrossFit affiliates), CrossFit’s letter notes:
    Finally, the authors did not properly define what constituted engaging in CrossFit® brand training, either. They state that subjects in the CrossFit group, “self-identified as practicing a CrossFit routine.” This would include people self-identifying as CrossFit practitioners who work out at commercial gyms alone, without supervision. As the authors admit, “Furthermore, in the study by Weisenthal et al, injury rate was significantly decreased when a trainer was involved (P = .028). The use of a trainer was not investigated in our study … Perhaps a CrossFit trainer would be able to identify any alteration in form and, thus, protect the athlete from injury.”
    Therefore even if the Paper properly cited sources and defined its terms, its central findings would have little relevance for licensed CrossFit® affiliate gyms and their classes, which are always led by CrossFit, Inc. credentialed trainers.
    Neither the paper’s authors nor the journal editors have responded to this letter. We hope they recognize the gravity of these errors and retract the paper swiftly. CrossFit, Inc. will continue to respond promptly and decisively to all inaccurate claims regarding the safety and efficacy of the training provided by its licensed affiliates and trainers.
     
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