title: Comparison of blood and saliva lactate level after maximum intensity exercise.
abstract: Several studies have described high correlation of salivary and blood lactate level during exercise. Measuring the effectiveness and intensity of training, lactate concentration in blood, and lately in saliva are used.The aim of our study was to evaluate the correlation between the concentration and timing of salivary and blood lactate level in endurance athletes and non-athletes after a maximal treadmill test, and to identify physiological and biochemical factors affecting these lactate levels.Sixteen volunteers (8 athletes and 8 non-athletes) performed maximal intensity (Astrand) treadmill test. Anthropometric characteristics, body composition and physiological parameters (heart rate, RR-variability) were measured in both studied groups. Blood and whole saliva samples were collected before and 1, 4, 8, 12, 15, 20 min after the exercise test. Lactate level changes were monitored in the two groups and two lactate peaks were registered at different timeperiods in athletes. We found significant correlation between several measured parameters (salivary lactate - total body water, salivary lactate - RR-variability, maximal salivary lactate - maximal heart rate during exercise, salivary- and blood lactate -1 min after exercise test). Stronger correlation was noted between salivary lactate and blood lactate in athletes, than in controls.
authors.affiliation: Doctoral School of Health Sciences, University of Pécs, Hungary.
authors.forename: Eva
authors.initials: E
authors.lastname: Tékus
authors.forename: Mónika
authors.initials: M
authors.lastname: Kaj
authors.forename: Edina
authors.initials: E
authors.lastname: Szabó
authors.forename: Nikolett Lilla
authors.initials: NL
authors.lastname: Szénási
authors.forename: Ildikó
authors.initials: I
authors.lastname: Kerepesi
authors.forename: Mária
authors.initials: M
authors.lastname: Figler
authors.forename: R
authors.initials: R
authors.lastname: Gábriel
authors.forename: Márta
authors.initials: M
authors.lastname: Wilhelm
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D015415:Biomarkers / Q000097:blood / Q000378:metabolism; D001834:Body Water / Q000378:metabolism; D016022:Case-Control Studies; D015444:Exercise; D005260:Female; D006339:Heart Rate; D006801:Humans; D019344:Lactic Acid / Q000097:blood*; D008297:Male; D009119:Muscle Contraction; D018482:Muscle, Skeletal / Q000378:metabolism*; D010807:Physical Endurance; D012463:Saliva / Q000378:metabolism*; D013997:Time Factors; D055815:Young Adult
chemical_list: D015415:Biomarkers; D019344:Lactic Acid