Role of AMPK in skeletal muscle metabolic regulation and adaptation in relation to exercise.
Level 5 - mechanism / opinion, no new human data
Narrative review of molecular and physiological mechanisms without systematic methodology.
PubMed 16690705 · doi:10.1113/jphysiol.2006.109942
What was done
This narrative review synthesizes literature on the mechanisms regulating 5'-AMP-activated protein kinase (AMPK) activity during muscle work (including nucleotide concentrations, energy substrate availability, and upstream AMPK kinases), its role in acute metabolic regulation, and its involvement in gene expression adaptations following exercise training.
What was found
The abstract reports no numerical findings or effect sizes. It qualitatively describes that AMPK is activated by both in vivo exercise and ex vivo contraction, functions as a regulator of muscle metabolism during work, and mediates the expression of genes encoding various metabolic enzymes during training adaptation.
Why it matters
It outlines the mechanistic framework for how cellular energetic stress during exercise leads to downstream metabolic control and skeletal muscle remodeling via AMPK.
Limits
As a narrative review, it lacks systematic search criteria, quality appraisal of included studies, and quantitative data synthesis. The abstract provides no primary data, sample sizes, or species details.
Cited by
- supports Exercise is a powerful activator of the AMP-activated protein kinase (AMPK) pathway.