Put the thumb, index finger and middle finger of the right hand into the space between the left index finger and middle finger, and then spread the thumb, index finger and middle finger of the right hand to both sides, forcing the muscles and tendons connected with the roots of the left index finger and middle finger to stretch.

Strength is until the fingertip of the left hand hurts, and then relax. After repeating this several times, switch to other fingers (the left index finger and middle finger, middle finger and ring finger, ring finger and little finger should be pressed, but there should be no pressure between thumb and index finger).

Extended data:

Fast guitar playing practice

1, exercise with your right hand for three minutes.

Practice in different parts. Play a series of octaves for three minutes at a comfortable speed with a lower plucked string. Then, at the same speed, switch to playing the eighth note with alternating strings for three minutes. These two three-minute exercises will help you strengthen your muscle endurance and sense of rhythm, and also build your muscle memory.

2. Left-handed endurance exercise

The next exercise will use the arrangement and combination of each finger. This is an exercise that doesn't need to be picked. It's purely a hook exercise. 15 seconds, the hook action will be as hard as possible. If you do it right, the whole left hand, from finger to arm, will feel "practiced" Again, stretch your fingers, wrists and arms before practice.

3. Practice with both hands synchronously

It is common to use this common basic exercise to train the synchronization and coordination of hands, but it is very important to practice correctly and continuously (basically climbing the grid)

The ultimate goal is to be able to completely synchronize the movements of both hands between each note and across the strings, practice with the metronome, and slow down to achieve a completely error-free speed.

References:

Phoenix. Com- an upgraded version of guitar finger practice. Would you like to have a try?