Using the uninjured hand, bend the large knuckle and the two finger knuckles into a fist until motion stops
Slightly stretch into the tightness.
Hold this position 20-30 seconds.
Keep the two finger knuckles bent as you straighten the large knuckle as much as possible.
Slightly stretch into the tightness.
Hold this position for 20-30 seconds.
Exercise Tips
Perform 1-2 repetitions, 3-4x/day.
Stretch into the end range of motion and nudge into the tightness just a bit further.
Be persistent, not aggressive.
Stretching all three knuckles of the fingers (regular or full fist) stretches the large muscle group that attaches to the fingers and stretching the top two knuckles with the large knuckle straight (hook or half fist) stretches the smaller muscle groups that attache to the fingers. Stretching both muscle groups is important for regaining the ability to fully bend the fingers.