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. 2022 Dec 21;379:e072833. doi: 10.1136/bmj-2022-072833

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© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Fig 1 — Oxygen uptake (V̇O₂; mL/kg/min) during participants’ usual walking and inefficient walking in men and women. Black lines are responses for individual participants. Purple line is mean±standard deviation. *Significantly greater than participants’ usual walking and the Putey walk for combined data (men and women; P<0.001)