Evidence for oxidative stress damage following high intensity anaerobic performance

Julien S. Baker, Bruce Davies

Research output: Contribution to journalArticle

Abstract

The purpose of this study was to compare power outputs, and blood concentrations of lipid hydroperoxides (LH), malondialdehyde (MDA) and lactate ([La-] B) following 30s of maximal cycle ergometry when resistive forces were derived from total-body mass (TBM) or fat-free mass (FFM). Differences (P < 0.05) in peak power output (PPO), pedal velocity (PV) and resistive forces (RF) were observed when the TBM and FFM protocols were compared (953 ± 114 W vs 1020 ± 134 W ; 134 ± 8 rpm vs 141 ± 7 rpm ; 6 ± 1 kg vs 5 ± 1 kg respectively). LH and MDA concentrations increased immediately post exercise during the TBM protocol only (P < 0.05) and decreased 24 h post exercise. Alphatocopherol and uric acid concentrations decreased immediately post exercise for both protocols (P < 0.05) and increased 24 h later (P < 0.05). The results of the study suggest that greater power outputs are obtainable with significantly less oxidative stress when resistive forces reflect FFM as opposed to TBM.
Original languageEnglish
Pages (from-to)9-13
Number of pages5
JournalThe Open Sports Medicine Journal
Volume2
DOIs
Publication statusPublished - 2008
Externally publishedYes

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Oxidative Stress
Lipid Peroxides
Fats
Malondialdehyde
Ergometry
Uric Acid
Foot
Lactic Acid

Cite this

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Evidence for oxidative stress damage following high intensity anaerobic performance. / Baker, Julien S.; Davies, Bruce.

In: The Open Sports Medicine Journal, Vol. 2, 2008, p. 9-13.

Research output: Contribution to journalArticle

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AU - Davies, Bruce

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AB - The purpose of this study was to compare power outputs, and blood concentrations of lipid hydroperoxides (LH), malondialdehyde (MDA) and lactate ([La-] B) following 30s of maximal cycle ergometry when resistive forces were derived from total-body mass (TBM) or fat-free mass (FFM). Differences (P < 0.05) in peak power output (PPO), pedal velocity (PV) and resistive forces (RF) were observed when the TBM and FFM protocols were compared (953 ± 114 W vs 1020 ± 134 W ; 134 ± 8 rpm vs 141 ± 7 rpm ; 6 ± 1 kg vs 5 ± 1 kg respectively). LH and MDA concentrations increased immediately post exercise during the TBM protocol only (P < 0.05) and decreased 24 h post exercise. Alphatocopherol and uric acid concentrations decreased immediately post exercise for both protocols (P < 0.05) and increased 24 h later (P < 0.05). The results of the study suggest that greater power outputs are obtainable with significantly less oxidative stress when resistive forces reflect FFM as opposed to TBM.

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