The two groups that reach the peak of human endurance? Extreme athletes and pregnant women

(CNN)In pushing the boundaries of human endurance, extreme athletes and pregnant women are unmatched, a new study says.

In the group’s findings, published in the journal Science Advances, participants completed Herculean events like the 2,200-mile Tour de France and the 140-day Race Across the USA. Athletes were able to maintain their intensity for short periods of time, but when competing in longer, high-intensity events, they weren’t able to replenish the calories they burned throughout the day.
“You can do really intense amounts of work for a day or so,” Herman Pontzer, a Duke University researcher who co-led the study, told CNN. “But if you have to last a week or so, you have to maintain less intensity.”
    Longer pushes require lower intensities, but over a short period of time, the human body can successfully exert 4,000 calories on average before hitting the wall. That’s 2.5 times the basal metabolic rate, or amount of calories a body needs to operate while at rest.
    The average person won’t reach those limits in a typical workout (except maybe Crossfit, Pontzer noted), but pregnant women and extreme athletes cut it close. Weeklong races and nine-month pregnancies similarly push the body to its limits, often burning calories at a rate the body can’t keep up with.

    Original Article : HERE ; This post was curated & posted using : RealSpecific

    This post was curated & Posted using : RealSpecific

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