Posts in tag

endurance


Spending very long periods of time in space has something in common with extreme endurance swimming: both can cause the heart to shrink. That’s the conclusion of a study that compared the effects of astronaut Scott Kelly’s year in space with a marathon swim by athlete Benoît Lecomte. Both remove the loads on the heart …

Image copyright Getty Images The ultimate limit of human endurance has been worked out by scientists analysing a 3,000 mile run, the Tour de France and other elite events. They showed the cap was 2.5 times the body’s resting metabolic rate, or 4,000 calories a day for an average person. Anything higher than that was …