Total protein of whole saliva as a biomarker of anaerobic threshold.
Saliva provides a convenient and noninvasive matrix for assessing specific physiological parameters, including some biomarkers of exercise. We investigated whether the total protein concentration of whole saliva (TPWS) would reflect the anaerobic threshold during an incremental exercise test. After a warm-up period, 13 nonsmoking men performed a maximum incremental exercise on a cycle ergometer. Blood and stimulated saliva were collected during the test. The TPWS anaerobic threshold (PAT) was determined using the Dmax method. The PAT was correlated with the blood lactate anaerobic threshold (AT; r = .93, p < .05). No significant difference (p = .16) was observed between PAT and AT. Thus, TPWS provides a convenient and noninvasive matrix for determining the anaerobic threshold during incremental exercise tests.
Bortolini
Miguel Junior Sordi
MJ
Laboratory of Biomechanics and Molecular Biology, Federal University of Uberlândia, Brazil.
De Agostini
Guilherme Gularte
GG
Reis
Ismair Teodoro
IT
Lamounier
Romeu Paulo Martins Silva
RP
Blumberg
Jeffrey B
JB
Espindola
Foued Salmen
FS
D000328:Adult; D015308:Anaerobic Threshold; D001642:Bicycling / Q000502:physiology*; D015415:Biomarkers / Q000032:analysis; D005080:Exercise Test; D006801:Humans; D019344:Lactic Acid / Q000097:blood*; D008297:Male; D011506:Proteins / Q000032:analysis*; D012463:Saliva / Q000737:chemistry*
D015415:Biomarkers; D011506:Proteins; D019344:Lactic Acid