Effects of exhaustive exercises, with different intensities, on oxidative stress markers in rat plasma and skeletal muscle

Takuji Kawamura, R. Fujii, X. Li, K. Higashida, Isao Muraoka

Research output: Contribution to journalArticle

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Abstract

Objectives: The purpose of this study was to examine the effects of exhaustive exercises, with different intensities, on oxidative stress markers in rat plasma and skeletal muscle. Methods: Male Sprague-Dawley rats (n = 24) were randomly divided into the following four groups: control (CON), low-intensity exercise (LE), high-intensity interval exercise (HE) and incremental exercise (IE). The animals in the latter three groups performed exercises in which they ran until exhaustion as follows: Animals in the LE group ran at 20 m/min (6° graded); the HE group ran at 40 m/min for 30 s (0° graded) with a rest interval of 60 s between each run; and the IE group ran at 15 m/min (6° graded), initially, with the running speed gradually increased by 5 m/min, every 10 min. Immediately following the exercise, a blood sample was drawn, and followed by the gastrocnemius muscle and liver were quickly removed. These samples were analysed for lactate concentration, oxidative stress markers, and glycogen contents. Results: Plasma oxidative stress markers in the LE and HE groups demonstrated no change, while plasma protein carbonyl (PC) levels and total antioxidant capacity (TAC) in the IE group were significantly increased compared with the CON group (P < 0.05). In contrast, all the oxidative stress markers, in the skeletal muscle of the three exercise groups, demonstrated no change compared with the CON group. Conclusion: Incremental exhaustive exercise elevates the plasma PC levels and TAC, but does not change skeletal muscle oxidative stress markers in rats.

Translated title of the contributionEffects of exhaustive exercises, with different intensities, on oxidative stress markers in rat plasma and skeletal muscle
Original languageFrench
Pages (from-to)169-175
Number of pages7
JournalScience and Sports
Volume33
Issue number3
DOIs
Publication statusPublished - 2018 Jun 1

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Skeletal Muscle
Oxidative Stress
Control Groups
Blood Proteins
Antioxidants
Glycogen
Running
Sprague Dawley Rats
Lactic Acid
Liver

Keywords

  • Exhaustive exercise
  • Oxidative stress
  • Rat
  • Treadmill

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Effets des exercices d’épuisement à différentes intensités sur les marqueurs de stress oxydent du plasma et des muscles squelettiques des rats. / Kawamura, Takuji; Fujii, R.; Li, X.; Higashida, K.; Muraoka, Isao.

In: Science and Sports, Vol. 33, No. 3, 01.06.2018, p. 169-175.

Research output: Contribution to journalArticle

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abstract = "Objectives: The purpose of this study was to examine the effects of exhaustive exercises, with different intensities, on oxidative stress markers in rat plasma and skeletal muscle. Methods: Male Sprague-Dawley rats (n = 24) were randomly divided into the following four groups: control (CON), low-intensity exercise (LE), high-intensity interval exercise (HE) and incremental exercise (IE). The animals in the latter three groups performed exercises in which they ran until exhaustion as follows: Animals in the LE group ran at 20 m/min (6° graded); the HE group ran at 40 m/min for 30 s (0° graded) with a rest interval of 60 s between each run; and the IE group ran at 15 m/min (6° graded), initially, with the running speed gradually increased by 5 m/min, every 10 min. Immediately following the exercise, a blood sample was drawn, and followed by the gastrocnemius muscle and liver were quickly removed. These samples were analysed for lactate concentration, oxidative stress markers, and glycogen contents. Results: Plasma oxidative stress markers in the LE and HE groups demonstrated no change, while plasma protein carbonyl (PC) levels and total antioxidant capacity (TAC) in the IE group were significantly increased compared with the CON group (P < 0.05). In contrast, all the oxidative stress markers, in the skeletal muscle of the three exercise groups, demonstrated no change compared with the CON group. Conclusion: Incremental exhaustive exercise elevates the plasma PC levels and TAC, but does not change skeletal muscle oxidative stress markers in rats.",
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