Study offers insight on how resistance training burns fat

Findings from a new University of Kentucky College of Medicine and College of Health Sciences study add to growing evidence that resistance exercise has unique benefits for fat loss.

The Department of Physiology and Center for Muscle Biology study published in the FASEB Journal found that resistance-like exercise regulates fat cell metabolism at a molecular level.

The study results in mice and humans show that in response to mechanical loading, muscle cells release particles called extracellular vesicles that give fat cells instructions to enter fat-burning mode.

Extracellular vesicles were initially understood as a way for cells to selectively eliminate proteins, lipids and RNA. Recently, scientists discovered that they also play a role in intercellular communication.

The study adds a new dimension to how skeletal muscle communicates with other tissues by using extracellular vesicles, says John McCarthy, Ph.D., study author and associate professor in the UK Department of Physiology.

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