Effect of exercise at intensities around ventilatory threshold on plasma protein-bound sulfhydryl groups

Makoto Saito*, Takayo Inayama, Seiji Maeda, Mitsuo Matsuda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Although it has been established that exercise is useful for health promotion, physical exercise may induce oxidative stress in humans. Our previous study showed that the concentration of plasma protein-bound sulfhydryl groups (p-SHs) was significantly decreased after strenuous exercise, i. e. full-marathon running and participation in an athletic training camp. Reactive oxygen species may cause oxidation of plasma proteins in vitro. To study whether moderate exercise for health promotion, e. g. jogging or walking, induces oxidative stress in human circulating blood, the authors examined the change in plasma p-SHs concentration following ergometric exercise at moderate intensity and of relatively short duration {Exercise 1 : 80% ventilatory threshold (VT), 100% VT, and 110% VT ; 30 min, Exercise 2 : 90% VT ; 120 min} in 8 (23-28 yr ; Exercise 1) and 6 males (23-28 yr ; Exercise 2) respectively. The plasma p-SHs concentration did not changed significantly after Exercise 1 or 2. The data indicated that the exercise did not cause significant modification of plasma proteins, suggesting that it did not induce significant oxidative stress in the circulating blood.

Original languageEnglish
Pages (from-to)365-374
Number of pages10
Journaljapanese journal of physical fitness and sports medicine
Issue number4
Publication statusPublished - 1997 Aug
Externally publishedYes


  • Moderate exercise
  • Oxidative stress
  • Plasma
  • Protein-bound sulfhydryl group

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation


Dive into the research topics of 'Effect of exercise at intensities around ventilatory threshold on plasma protein-bound sulfhydryl groups'. Together they form a unique fingerprint.

Cite this