Explanation:
Hold the bow with the stick in a vertical position. Then climb or ‘crawl’ with the fingers, like a spider, from the frog to the top of the bow and back again, very slowly and clingingly (from the frog to the middle of the bow and back first, if the former is too difficult).
Once the basic version of the exercise is mastered, perform the exercise while holding the bow in a horizontal position (parallel to the floor). Stop several times along the way and roll the bow with the fingers.
When performing this exercise, adhere to the following guidelines:
1. Keep the thumb and middle finger opposite each other at all times.
2. Do not lift the fingers on the stick or change the places of contact of the fingers on the stick.
3. Keep the bow as motionless as possible.
4. Do not move the arm.