Scientists Say This 3-Minute Exercise Beats 90-Minute Workouts
Summary
Scientists at Rockefeller University found that just three minutes of intense sprinting causes bigger positive changes in the body’s molecules than 90 minutes of moderate exercise like cycling or running. Sprinting quickly triggers many proteins and metabolites that help blood vessel growth, tissue repair, and hormone activity, which are linked to better health and slower aging.Key Facts
- Participants did either six 30-second sprints or 90 minutes of moderate cycling or running.
- Sprinting changed nearly 25% of blood proteins immediately after exercise, while moderate cycling changed less than 0.25%.
- Sprinting caused a rise in proteins involved in blood vessel growth and tissue remodeling.
- Proteins entered the bloodstream through a process called ectodomain shedding, releasing parts of proteins from cell surfaces.
- Fat cells exposed to blood after sprinting showed major changes in gene activity, affecting how the cells process fuel and hormones.
- Moderate exercise caused smaller and slower molecular responses, with changes appearing about three hours later.
- Analysis of health data from over 53,000 people linked sprinting-altered proteins to lower risks of obesity, diabetes, heart disease, and slower aging.
- Sprinting altered 32 of 33 proteins related to lower disease risk, while moderate exercise altered only three.
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