Fig. 3From: Effects of a commercially available branched-chain amino acid-alanine-carbohydrate-based sports supplement on perceived exertion and performance in high intensity endurance cycling testsPerceived exertion rate (RPE) values versus session time; a-b whole RPE time series; c-d RPE values in sprint (SPR) steps at pre-training (1d) and post training (9w) stages, respectively; e-f RPE values in REC steps at 1d and 9w, respectively. Closed circles refer to SU and open circles to the PL groupBack to article page