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. 2023 Jul 30;124(1):343–352. doi: 10.1007/s00421-023-05287-0

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© The Author(s) 2023

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Fig. 4 — A Mean pulmonary oxygen uptake ( $\dot{V}$ O₂ L min−1) during 4 km TT cycling performance in ozone following 7 days supplementation of PB or PL. A significant difference in $\dot{V}$ O₂ during the 4 km TT observed with PB supplementation compared to PL, * p = 0.01. B – $\dot{V}$ O₂ per km of the 4 km TT