In this video, you will learn how to do an eccentric hammer curl for De Quervain’s tenosynovitis by Dr. Brian Damhoff.

De Quervain’s tenosynovitis also known as texting thumb or mommy thumb is a painful condition that affects the tendons on the thumb. It generally is caused by overuse. Eccentric exercises can prove useful in the treatment of overuse tendon issues. Be sure to watch the video to learn the proper technique for this exercise.