Metformin May Contribute to Inter-individual Variability for Glycemic Responses to Exercise

Steven K. Malin, Nathan R. Stewart

Research output: Contribution to journalReview articlepeer-review

2 Scopus citations

Abstract

Metformin and exercise independently improve glycemic control. Metformin traditionally is considered to reduce hepatic glucose production, while exercise training is thought to stimulate skeletal muscle glucose disposal. Collectively, combining treatments would lead to the anticipation for additive glucose regulatory effects. Herein, we discuss recent literature suggesting that metformin may inhibit, enhance or have no effect on exercise mediated benefits toward glucose regulation, with particular emphasis on insulin sensitivity. Importantly, we address issues surrounding the impact of metformin on exercise induced glycemic benefit across multiple insulin sensitive tissues (e.g., skeletal muscle, liver, adipose, vasculature, and the brain) in effort to illuminate potential sources of inter-individual glycemic variation. Therefore, the review identifies gaps in knowledge that require attention in order to optimize medical approaches that improve care of people with elevated blood glucose levels and are at risk of cardiovascular disease.

Original languageEnglish (US)
Article number519
JournalFrontiers in Endocrinology
Volume11
DOIs
StatePublished - Aug 11 2020
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Endocrinology, Diabetes and Metabolism

Keywords

  • exercise
  • insulin resistance
  • metabolic syndrome
  • pre-diabetes
  • type 2 diabetes
  • weight loss

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