"Sprinting hurts. It sucks. Hardo coaches use it as a punishment for a reason. Still, its temporary agony can lead to lifelong benefits. Regular sprint intervals (in the 30-second range, specifically) strengthen the heart, optimize your blood sugar and cholesterol, boost your VO2 max, increase your power output and are excellent at cutting your visceral (belly) fat - the cancer-causing fat we have to be really careful about."
"At the same time, the line is a pretty compelling CTA for high-intensity exercise. It's likely that a fair share of 30-and-older adults will have to wrack their brains to remember the very last time they went all out. But when you're younger - playing at recess, on a sports team, or just dealing with a case of the zoomies - sprinting happens all the time. It's a part of life."
Many adults greatly reduce or stop sprinting after age 30, though the specific "95%" claim lacks evidence and is likely false. Sprinting provides major health benefits: 30-second sprint intervals strengthen the heart, improve blood sugar and cholesterol, raise VO2 max, increase power output, and cut visceral fat. Sprinting simultaneously builds and tones muscle by recruiting fast-twitch fibers and elevates cardiovascular demand. Preserving sprint capacity into later decades supports functional fitness, metabolic health, and muscle power, and can be pursued safely with appropriate programming for middle-aged and older athletes.
Read at InsideHook
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