Figure 1. Brain (frontal cortex) oxygenation data, as a function of work rate, obtained by NIRS during incremental knee‐extension exercise in BDC, after N‐BR, H‐BR and H‐AMB.

Mean ± SD values of changes in concentration of oxy‐haemoglobin (Δoxy[Hb]), deoxy‐haemoglobin (Δdeoxy[Hb]) and total (oxy + deoxy) haemoglobin (Δ[oxy + deoxyHb]) are shown. For further details, see text.