Linebacker with One Hand Wows NFL: What Is Amniotic Band Syndrome?

Shaquem Griffin, a linebacker for the University of Central Florida, was born with a condition that resulted in the loss of his hand. Above, Griffin during the AAC Championship game in December, 2017.
Shaquem Griffin, a linebacker for the University of Central Florida, was born with a condition that resulted in the loss of his hand. Above, Griffin during the AAC Championship game in December, 2017.
(Image credit: Joe Petro/Icon Sportswire/Getty)

College football player Shaquem Griffin impressed coaches and fans at an NFL scouting event on Saturday (March 3) when he bench-pressed 225 lbs. (102 kilograms) 20 times. And he did it all without a left hand.

Griffin, 22, lost his left hand when he was 4 years old due to amniotic band syndrome, a rare condition that occurs during fetal development. The exact cause of this condition is unknown, but it's thought to occur when parts of the fetus become entangled in the amniotic sac, or the sac of fluid that surrounds the developing baby, according to the University of California, San Francisco (UCSF).

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Rachael Rettner
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Rachael is a Live Science contributor, and was a former channel editor and senior writer for Live Science between 2010 and 2022. She has a master's degree in journalism from New York University's Science, Health and Environmental Reporting Program. She also holds a B.S. in molecular biology and an M.S. in biology from the University of California, San Diego. Her work has appeared in Scienceline, The Washington Post and Scientific American.