Salivary total protein as a biomarker of anaerobic threshold in elderly athletes subjected to an incremental physical test

Allisson B. Justino; Anibal MM Neto; Miguel J. S. Bortolini; Leonardo G. Peixoto; Eduardo S. Prado; Marina Garcia-Hortal; Françoise V. Botelho; Foued S. Espindola

doi:10.5114/biolsport.2018.70752

eISSN: 2083-1862
ISSN: 0860-021X

Biology of Sport

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1/2018
vol. 35

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abstract:

Original paper

Salivary total protein as a biomarker of anaerobic threshold in elderly athletes subjected to an incremental physical test

Allisson B. Justino

,

Anibal MM Neto

,

Miguel J. S. Bortolini

,

Leonardo G. Peixoto

,

Eduardo S. Prado

,

Marina Garcia-Hortal

,

Françoise V. Botelho

,

Foued S. Espindola

Biol. Sport 2017;34:57-65

DOI: https://doi.org/10.5114/biolsport.2018.70752

Online publish date: 2017/10/25

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This study aimed to verify whether salivary total protein (STP) would reflect anaerobic threshold in elderly athletes subjected to an incremental exercise test. Methods: Seven elderly elite athletes (EEA) and six physically active elderly men (PAE) completed a treadmill protocol in which blood and saliva samples were collected. Results: Blood lactate (BL) and STP increased significantly in EEA during the test (0.8 ± 0.2 to 5.1 ± 2.0 mmol/L and 42.5 ± 7.5 to 222.5 ± 63.8 mg/dL, respectively) and remained elevated at five minutes after exercise (5.0 ± 1.9 mmol/L and 147.2 ± 50.0 mg/dL, respectively). Furthermore, correlations between STP and heart rate (r = 0.87, p < 0.001), and between BL and STP (r = 0.96, p < 0.001), were observed in the elderly athletes. Conclusions: STP represents a potential non invasive biomarker for determining anaerobic threshold during an incremental exercise test, and this parameter may be used as an indicator of physical exercise intensity in elderly athletes.

keywords:

Salivary total protein as a biomarker of anaerobic threshold in elderly athletes subjected to an incremental physical test

Allisson B. Justino , Anibal MM Neto , Miguel J. S. Bortolini , Leonardo G. Peixoto , Eduardo S. Prado , Marina Garcia-Hortal , Françoise V. Botelho , Foued S. Espindola

Aging, Exercise, Master athletes, Salivary protein, Anaerobic threshold

Allisson B. Justino

,

Anibal MM Neto

,

Miguel J. S. Bortolini

,

Leonardo G. Peixoto

,

Eduardo S. Prado

,

Marina Garcia-Hortal

,

Françoise V. Botelho

,

Foued S. Espindola