An acute eccentric exercise increases circulating myomesin 3 fragments

Minjung Lee, Jaehoon Shin, Tatsuya Kato, Kazue Kanda, Satoshi Oikawa, Jun Sakuma, Kaoru Sugama, Yasuo Kawakami, Katsuhiko Suzuki, Takayuki Akimoto

Research output: Contribution to journalArticlepeer-review

Abstract

Discovery of blood biomarkers to evaluate exercise-induced muscle damage have attracted many researchers and coaches. This study aimed to determine changes in circulating myomesin 3 fragments as a novel biomarker for exercise-induced muscle damage. Nine healthy males performed 10 sets of 40 repetitions of one-leg calf-raise exercise by the load corresponding to the half of their body weight. Muscle symptoms were evaluated by a visual analog scale (VAS). Blood samples were collected before and 2, 4, 24, 48, 72, and 96 h post-exercise. Plasma myomesin 3 fragments levels were significantly increased at 96 h after the eccentric exercise. The myomesin 3 fragments levels were correlated with other biomarkers of muscle damage and the muscle symptoms. These results suggest that the circulating myomesin 3 fragments levels are potential biomarkers reflecting eccentric exercise-induced muscle damage.

Original languageEnglish
Article number4
JournalJournal of Physiological Sciences
Volume71
Issue number1
DOIs
Publication statusPublished - 2021 Dec

Keywords

  • Biomarkers
  • Eccentric exercise
  • Muscle damage
  • Myomesin

ASJC Scopus subject areas

  • Physiology

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