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Running economy was similar between Vaporfly shoes with intact (VFintact) and cut (VFcut) carbon-fiber plates. The average metabolic rate is shown in black, and individual responses are shown with grey lines. On average, runners had a 0.55% ± 1.77% (mean ± SD) higher metabolic rate in the VFcut than in the VFintact, but this difference was not statistically significant (p = 0.306).
