To increase difficulty, increase the weight or duration. If you do not have a plate weight, you can use the end of a dumbbell, holding it with your fingertips and thumb. In addition to targeted ...
This exercise is performed sitting down because ... Now raise one arm toward the front, taking care to keep your thumb pointed upward just slightly, and the other out to the side.
One finger, one thumb, keep moving One finger, one thumb, keep moving One finger, one thumb, keep moving We’ll all be merry and bright. One finger, one thumb, one arm, keep moving One finger ...