Leg Efficiency: 0.35 (35%) - Sources & Links

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Leg efficiency in humans is commonly cited as 0.35 or 35%, with some sources suggesting it can reach up to 50% under certain conditions. The remaining 65% of energy expenditure is typically lost as heat and through other metabolic processes. A referenced article compares the leg efficiencies of mice and humans, highlighting the differences in athletic performance. The discussion seeks credible sources to substantiate these figures. Overall, understanding leg efficiency is crucial for analyzing human biomechanics and athletic performance.
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I know the leg efficiency for humans is 0.35 (or 35%) but I need a source to corroborate it.

Are there any available links at anyone's disposal that I may use to cite?
 
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If you don't mind my asking, what does it mean, that the leg efficiency is of 35%?

And how is the remaining 65% distributed?
 
I didn't know anything about this, but google gives a very nice article comparing the efficiencies of mice and humans whilst running. Incidentally, the article quotes humans' "leg efficiencies" at up to 50%, depending on a number of factors. The article is, however, written from an athletics point of view, rather than any kind of bio anth.

http://www.pponline.co.uk/encyc/0950b.htm

Enjoy.
 
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