25d • General discussion
Square cubed law
The square-cube law explains why a 6'5" man is not automatically stronger than a 5'9" man, even though he is much larger.
The law states
Muscle strength is primarily determined by a muscle's cross-sectional area (how thick it is), which scales with the square of size. Body mass scales with volume, which scales with the cube of size.
Example:A 6'5" man is about 11.6% taller than a 5'9" man.So he may have about 25% more muscle cross-sectional area.
But body mass scales by the cubeSo he may weigh about 39% more.
So this means that the 6'5" man is stronger in absolute terms.
But he is carrying even more body mass.
His strength-to-weight ratio is actually lower.
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Square cubed law
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