Exercising for Insulin Sensitivity – Is There a Mechanistic Relationship With Quantitative Changes in Skeletal Muscle Mass?

Frontiers in Physiology

Isabelle J. Dionne¹  Jasmine Paquin¹  Jean-Christophe Lagacé¹  Martin Brochu¹ 

[1] Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, QC, Canada;Research Centre on Aging, Affiliated With CIUSSS de l’Estrie-CHUS, Sherbrooke, QC, Canada;

关键词: insulin sensitivity;    muscle mass;    muscle quality;    resistance training;    muscle hypertrophy;    muscle capillarization;   

DOI  :  10.3389/fphys.2021.656909

来源: DOAJ

【 摘 要 】

Skeletal muscle (SM) tissue has been repetitively shown to play a major role in whole-body glucose homeostasis and overall metabolic health. Hence, SM hypertrophy through resistance training (RT) has been suggested to be favorable to glucose homeostasis in different populations, from young healthy to type 2 diabetic (T2D) individuals. While RT has been shown to contribute to improved metabolic health, including insulin sensitivity surrogates, in multiple studies, a universal understanding of a mechanistic explanation is currently lacking. Furthermore, exercised-improved glucose homeostasis and quantitative changes of SM mass have been hypothesized to be concurrent but not necessarily causally associated. With a straightforward focus on exercise interventions, this narrative review aims to highlight the current level of evidence of the impact of SM hypertrophy on glucose homeostasis, as well various mechanisms that are likely to explain those effects. These mechanistic insights could provide a strengthened rationale for future research assessing alternative RT strategies to the current classical modalities, such as low-load, high repetition RT or high-volume circuit-style RT, in metabolically impaired populations.

【 授权许可】

Unknown