Figure 4. The impact of 5-weeks of the endurance training on the plasma branched-chain amino acids concentration during cycling in the varied intensity domains.

The changes in plasma branched-chain amino acids concentration during cycling performed in the moderate-intensity domain (from rest up to 50% of VO_2max Δ_MI, A), heavy- intensity domain (above ∼70% of VO_2max, Δ_HI, B) and during maximal incremental cycling (from rest to 100% of VO_2max - Δ_max C) before (Pre) and after (Post) the training. Data are shown as mean ±  S.E.M. Abbreviation: Abbreviations: [Leu]_pl, plasma leucine concentration; [Ile]_pl, plasma isoleucine concentration; [Val]_pl, plasma valine concentration; [∑BCAA]_pl, the sum of plasma BCAA concentration.