Patricia Deuster and Francis O’Connor are two exercise researchers who suffer from an enduring anti-CrossFit bias. Back in 2011, Deuster and O’Connor joined William Kraemer of the NSCA, among others, to publish what has become known as the CHAMP paper. That paper labeled CrossFit an “extreme conditioning program” and linked it to “a potential emerging problem of disproportionate musculoskeletal injury risk.” The authors cited no evidence whatsoever to support their allegations, as Jeff Glassman demonstrated in his rebuttal in the […]

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