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The record is 44.72 km/h (27.78 mph), measured between meter 60 and meter 80 of the 100 meters sprint at the 2009 World Championships in Athletics by speed. [4] [5] (Bolt's average speed over the course of this race was 37.578 km/h or 23.35 mph.) [6] Compared to quadrupedal animals, humans are exceptionally capable of endurance, but incapable of great speed. [7]
The endurance running hypothesis is a series of conjectures which presume humans evolved anatomical and physiological adaptations to run long distances [1] [2] [3] and, more strongly, that "running is the only known behavior that would account for the different body plans in Homo as opposed to apes or australopithecines".
However, beyond a certain point, negative consequences might occur. Older male runners (45-55) who run more than 40 miles (64 kilometers) per week face reduced testosterone levels, although they are still in the normal range. [34] Running a marathon lowers testosterone levels by 50% in men and more than doubles cortisol levels for 24 hours. [35]
The first person timed at under ten seconds was Bob Hayes, who ran 9.9 s in April 1963 at the Mt. SAC Relays, but with a tailwind of 11 mph (4.9 m/s). [3] [4] Hayes clocked another illegal 9.9 s (wind 5.3 m/s (12 mph)) in the semi-final of the 1964 Olympic 100 m, with the first sub-10 FAT of 9.91 s. [5]
A personal trainer who has run 30 marathons across Europe in 30 days to raise awareness of motor neurone disease (MND) has described the challenge as a "rollercoaster". ... (3.1 miles) with us - I ...
Running can assist people in losing weight, staying in shape and improving body composition. Research suggests that the person of average weight will burn approximately 100 calories per mile run. [61] Running increases one's metabolism, even after running; one will continue to burn an increased level of calories for a short time after the run. [62]
Forty to 100 people a year die this way. ... They grow up to 10 feet long and can weigh up to 300 pounds. They can run 12 mph in short bursts, climb trees when they’re young, and are powerful ...
The modern sprinting events have their roots in races of imperial measurements which were later altered to metric: the 100 m evolved from the 100-yard dash, [7] the 200 m distance came from the furlong (or 1 ⁄ 8 mile), [8] and the 400 m was the successor to the 440-yard dash or quarter-mile race.