eli5: How do parkourists not break their ankles?

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I just saw a video of some guys jumping off extremely tall buildings onto concrete, no rolling afterwards. How do their ankles not just snap?

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9 Answers

Anonymous 0 Comments

Less scientific answer.

It’s not speed that hurts or kills you.

It’s the sudden deceleration.

If you can decelerate slowly and extend that by rolling and dissipating that energy, you’ll get less of an injury.

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