A small dose of interval walking could offer big benefits for adults with excess waist fat, a new trial suggests.
Three things to remember
- 315 adults with central obesity walked briskly in intervals for 75 minutes weekly.
- One weekly session reduced body fat and waist size similarly to three sessions.
- Cardiovascular fitness improved equally in both groups after four months.
How to interpret it
Historical Biophysics & Lineage
Interval walking induces repeated cycles of high-intensity muscle contraction that increase AMPK activation and GLUT4 translocation, enhancing skeletal muscle glucose uptake and fat oxidation. The high-intensity bouts also stimulate catecholamine release, which promotes lipolysis in visceral adipose tissue via beta-adrenergic receptors, while the post-exercise oxygen consumption (EPOC) elevates 24-hour energy expenditure. These mechanisms explain how even a modest weekly dose of 75 minutes can reduce central fat, as the intermittent nature of the exercise triggers a more potent metabolic response per minute than continuous moderate exercise, consistent with Åstrand’s interval training principles and Vague’s emphasis on central fat as a metabolically active depot.
Source
This signal is based on This once-a-week workout may help cut belly fat, study shows from ScienceDaily Top Health. Read the original report for full context.
Health note: The study did not specify exact reductions or participant details; consult your doctor before starting a new exercise routine.