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Yakk · 06-16-2006, 09:18 PM

It has recently come to my attention that most people's thumbs don't bend backwards.

I always assumed that people's "last joint" on the thumb was supposed to allow about as much mobility bending forwards as it does backwards.

Now, I can move my thumb back and forth (that joint has 180 degrees of range) using my muscles. For my other fingers, I have to bend the finger with my other hand. But I end up with about 135 degrees before my joints actually protest.

How rare is this kind of double jointedness?

06-16-2006, 09:18 PM	#1 (permalink)
Yakk Wehret Den Anfängen! Location: Ontario, Canada	Double Jointedness It has recently come to my attention that most people's thumbs don't bend backwards. I always assumed that people's "last joint" on the thumb was supposed to allow about as much mobility bending forwards as it does backwards. Now, I can move my thumb back and forth (that joint has 180 degrees of range) using my muscles. For my other fingers, I have to bend the finger with my other hand. But I end up with about 135 degrees before my joints actually protest. How rare is this kind of double jointedness? __________________ Last edited by JHVH : 10-29-4004 BC at 09:00 PM. Reason: Time for a rest.