Figure 1.

Representative 600 MHz ¹H nuclear magnetic resonance (NMR) spectrum of a plasma sample 70 min after a bout of heavy resistance and intake of protein drink (calcium caseinate) (Red line). The difference between the 70 min post-exercise sample and the corresponding -70 min pre-exercise sample from the same individual is also shown (Blue line). Nomenclature: 1, lipid; 2, branched amino acids; 3, lactate; 4, alanine; 5, acetate; 6, N-acetyl glycoprotein; 7, glutamate/glutamine; 8, acetone; 9, acetoacetate; 10, citrate; 11, creatine; 12, cholines; 13, glucose; 14, mainly glucose region; 15, tyrosine; 16, histidine; 17, formate.