Fig. 4.

Energy metabolic-related factor concentrations in plasma and tissues after endurance exercise for 120 min. a Glucose, lactate, and FFA concentrations in plasma. b Taurine, NAT, carnitine, and ACT concentrations in the plasma, liver, and skeletal muscle. c Correlation relationships between BGC and these factors, including FFA and lactate in plasma and NAT and ACT in the skeletal muscle. Abbreviations: ACT acetyl-carnitine, CON120 Control group at the 120-min point, FFA free fatty acid, GC gastrocnemius muscle, NAT N-acetyltaurne, TAU120 Taurine-supplemented group at the 120-min point. Values in the column graph are expressed as the mean ± SE. *P < 0.05, **P < 0.01, and ^†P < 0.001 shows a significant difference analyzed by unpaired Student’s t test. Correlation relationship was analyzed by Pearson’s correlation coefficient