Effects of nonexhaustive bouts of high-intensity intermittent swimming training on GLUT-4 expression in rat skeletal muscle

Eri Takai, Shuichi MacHida, Mitsuru Higuchi, Izumi Tabata

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We previously reported that 14 bouts of exhaustive high-intensity intermittent training [20 s periods of swimming while carrying a weight (14% of body weight), separated by pauses of 10 s] is the highest stimuli in terms of exercise training-induced glucose transporter 4 (GLUT-4) expression in rat epitrochlearis (EPI) muscles. In the present study, we found that the GLUT-4 protein content in the skeletal muscle of male Sprague-Dawley rats (age 5 weeks old; body weight 90-110 g) that underwent intermittent exercise training of 3 and 14 bouts of 20 s swimming for 5 days was increased over age-matched sedentary control rats by 75 and 71%, respectively, 18 h after the last bout of exercise. These results suggest that GLUT-4 content in rat EPI muscle increases dramatically after very short (60 s) and nonexhaustive high-intensity intermittent exercise training.

Original languageEnglish
Pages (from-to)95-101
Number of pages7
JournalJournal of Physiological Sciences
Volume60
Issue number2
DOIs
Publication statusPublished - 2010 Mar

Keywords

  • GLUT-4
  • High-intensity intermittent exercise
  • Rat
  • Skeletal muscle

ASJC Scopus subject areas

  • Physiology

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