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Knuckle-Cracking Good for You? New Evidence Suggests Yes, It Is

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By    |   Friday, 19 Aug 2016 10:40 AM

Knuckle cracking may draw annoyance and warnings from those around you, but new research suggests the habit may be good for you.

Keen to prove to his knuckle-cracking nurse that her habit was detrimental, Dr. Robert Szabo, a hand surgeon at UC Davis Medical Center, told CNN that he jumped at the chance to collaborate with colleague Dr. Robert Boutin, a radiologist at UC Davis, on a study of knuckle cracking.

The results surprised him, revealing that not only was there no evidence of harm, but that after someone cracked a knuckle, it had an increased range of motion compared with knuckles that hadn't been cracked, CNN said.

The unpublished study was presented at the December meeting of the Radiological Society of North America. Researchers examined 40 participants, including 30 habitual knuckle crackers and 10 without the habit, according to an RSNA news release.

Orthopedists examined knuckle cracking with ultrasound imaging and evaluated the participants for grip strength, range of motion, and laxity before and after.

"What we saw was a bright flash on ultrasound, like a firework exploding in the joint," Boutin said in the news release. "It was quite an unexpected finding."

The researchers are confident that the flashes and cracking sounds are related to changes in pressure associated with gas bubbles in the joints.

Noting that further study is needed to assess the long-term effects of knuckle cracking, the study revealed "no immediate pain, swelling or disability in the knuckle-cracking group and no immediate difference in laxity or grip strength."

Many knuckle-crackers celebrated the study results on Twitter.

 

 

 

 

 

 

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Knuckle cracking may draw annoyance and warnings from those around you, but new research suggests the habit may be good for you.
knuckle cracking, good, study, joints
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2016-40-19
Friday, 19 Aug 2016 10:40 AM
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