Changes in blood markers of serotoninergic activity following high intensity cycle ergometer exercise

J.S. Baker, R. Morgan, D. Hullin, L.M. Castell, D.M. Bailey, B. Davies

Research output: Contribution to journalArticle

Abstract

The purpose of this study was to measure concentrations of adrenaline (A), noradrenaline (NE), free tryptophan (f-Trp), prolactin (PRL), nonesterified fatty acids (NEFA), and blood lactate following 30 s of high-intensity cycle ergometer exercise. Adrenaline (A) and NE concentrations increased immediately postexercise (P < 0.05) and returned to levels observed at baseline 24 h later. Plasma f-Trp concentration decreased by 23.5% immediately following exercise (P < 0.05). There were no changes observed in serum concentrations of PRL. Plasma NEFA concentrations decreased immediately following exercise by 46% (P < 0.05) and returned to baseline values 24 h later. Whole blood lactate concentrations increased immediately post exercise (P < 0.05), and were higher than those measured 24 h later (P < 0.05). These findings indicate that blood markers of serotoninergic activity were unaltered by a single 30 s bout of maximal cycling.
Original languageEnglish
Pages (from-to)191-203
Number of pages13
JournalResearch in Sports Medicine
Volume14
Issue number3
DOIs
Publication statusPublished - 23 Sep 2006
Externally publishedYes

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Nonesterified Fatty Acids
Tryptophan
Prolactin
Epinephrine
Lactic Acid
Norepinephrine
Serum

Keywords

  • high intensity exercise
  • prolactin
  • tryptophan

Cite this

Baker, J.S. ; Morgan, R. ; Hullin, D. ; Castell, L.M. ; Bailey, D.M. ; Davies, B. / Changes in blood markers of serotoninergic activity following high intensity cycle ergometer exercise. In: Research in Sports Medicine. 2006 ; Vol. 14, No. 3. pp. 191-203.
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Changes in blood markers of serotoninergic activity following high intensity cycle ergometer exercise. / Baker, J.S.; Morgan, R.; Hullin, D.; Castell, L.M.; Bailey, D.M.; Davies, B.

In: Research in Sports Medicine, Vol. 14, No. 3, 23.09.2006, p. 191-203.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Changes in blood markers of serotoninergic activity following high intensity cycle ergometer exercise

AU - Baker, J.S.

AU - Morgan, R.

AU - Hullin, D.

AU - Castell, L.M.

AU - Bailey, D.M.

AU - Davies, B.

PY - 2006/9/23

Y1 - 2006/9/23

N2 - The purpose of this study was to measure concentrations of adrenaline (A), noradrenaline (NE), free tryptophan (f-Trp), prolactin (PRL), nonesterified fatty acids (NEFA), and blood lactate following 30 s of high-intensity cycle ergometer exercise. Adrenaline (A) and NE concentrations increased immediately postexercise (P < 0.05) and returned to levels observed at baseline 24 h later. Plasma f-Trp concentration decreased by 23.5% immediately following exercise (P < 0.05). There were no changes observed in serum concentrations of PRL. Plasma NEFA concentrations decreased immediately following exercise by 46% (P < 0.05) and returned to baseline values 24 h later. Whole blood lactate concentrations increased immediately post exercise (P < 0.05), and were higher than those measured 24 h later (P < 0.05). These findings indicate that blood markers of serotoninergic activity were unaltered by a single 30 s bout of maximal cycling.

AB - The purpose of this study was to measure concentrations of adrenaline (A), noradrenaline (NE), free tryptophan (f-Trp), prolactin (PRL), nonesterified fatty acids (NEFA), and blood lactate following 30 s of high-intensity cycle ergometer exercise. Adrenaline (A) and NE concentrations increased immediately postexercise (P < 0.05) and returned to levels observed at baseline 24 h later. Plasma f-Trp concentration decreased by 23.5% immediately following exercise (P < 0.05). There were no changes observed in serum concentrations of PRL. Plasma NEFA concentrations decreased immediately following exercise by 46% (P < 0.05) and returned to baseline values 24 h later. Whole blood lactate concentrations increased immediately post exercise (P < 0.05), and were higher than those measured 24 h later (P < 0.05). These findings indicate that blood markers of serotoninergic activity were unaltered by a single 30 s bout of maximal cycling.

KW - high intensity exercise

KW - prolactin

KW - tryptophan

U2 - 10.1080/15438620600854744

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JO - Research in Sports Medicine

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ER -