From: utzoo!decvax!ucbvax!CAD:tektronix!tekmdp!markp
Newsgroups: net.med
Title: knuckle-cracking
Article-I.D.: tekmdp.1708
Posted: Fri Jan 21 15:56:03 1983
Received: Mon Jan 24 05:46:48 1983


Some years ago I picked up the annoying habit of cracking my knuckles.
Only now am I finally able to quit doing it, and I'm wondering if anyone
out there can speak with authority on some questions I have --

What exactly is the mechanism by which knuckles will "crack" or "pop" when
bent or pulled?

What damage and/or deterioration may be expected as a result of extended
periods of frequent deliberate cracking of the knuckles?

Can knuckle-cracking be a self-perpetuating habit in that it sets up
conditions in the joints which cause them to stiffen unless cracked
occasionally?

Are there many people who have this habit?  Can anyone speak of ill effects
(or the lack thereof) as a result of long, personal experience?

What about the normal-motion-induced cracking of other joints?


Mark R. Paulin
...decvax!teklabs!tekmdp!markp