Effects of high intensity / low volume and low intensity / high volume isokinetic resistance exercise on postexercise glucose tolerance

Andrew D. Miller, Brent C. Ruby, James J. Laskin, Steven E. Gaskill

Research output: Contribution to journalArticlepeer-review

Abstract

Miller, A.D., B.C. Ruby, J.J. Laskin, and S.E. Gaskill. Effects of high intensity/low volume and low intensity/high volume isokinetic resistance exercise on postexercise glucose tolerance. J. Strength Cond. Res. 21(2):330-335. 2007. - The purpose of this study was to determine the effects of high intensity/ low volume (HILV) and low intensity/high volume (LIHV) isokinetic resistance exercise on postexercise glucose tolerance. Subjects (n = 10) participated in a counterbalanced, randomized design of 2 separate isokinetic resistance exercise trials (HILV and LIHV) of reciprocal concentric knee flexion and knee extension in a fasted state. Each bout was followed by a 45-minute oral glucose tolerance test (OGTT; 1.8 g·kg fat free mass -1). Blood samples were obtained every 15 minutes to determine glucose and insulin concentrations. There was no difference in total work between the 2 trials (p = 0.229). Blood glucose was significantly higher at all time points compared with time 0 following the LIHV trial (p < 0.05). Following the HILV trial, blood glucose was significantly elevated at 15 and 30 minutes (p < 0.05), but returned to resting values by 45 minutes. Insulin concentration was significantly elevated following both trials at all time points (p < 0.05). Blood glucose and insulin were significantly higher following the LIHV at 30 and 45 minutes compared with the HILV trial (p < 0.05). These results demonstrate that although the total work output was similar across trials, high intensity muscle contraction is associated with an enhanced normalization of glucose homeostasis following a large postexercise oral glucose feed.

Original languageEnglish
Pages (from-to)330-335
Number of pages6
JournalJournal of Strength and Conditioning Research
Volume21
Issue number2
DOIs
StatePublished - May 2007

Keywords

  • GLUT-4
  • Insulin
  • OGTT
  • Total work

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