Want Stronger Fingers? Think About the Hand.
There are over 30 muscles in the hand.
Many of them allow a movement called “opposition.” Opposition allows the thumb to press against the other fingers.
Climbers use these muscles in many ways while grasping holds. But one of the most important jobs of the muscles is flexing and adducting the first finger joint.
Watch the video above to learn more, and remember: If you want to strength train your fingers, you gotta think of the whole hand.