ABT of only ~135 mL of RBC is sufficient to increase mean power in a 650-kcal cycling time trial by ~5% in highly trained men. In contrast, a combined high-volume transfusion of ~135 and ~235 mL of RBC does not alter 4 × 30-s all-out cycling performance interspersed with 4 min of recovery.
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Bejder et al. (2018) studied this question.
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