Movement guide
Dorsal interossei
Spread the fingers apart and assist knuckle control.
01
Resisted finger spread
Finger abduction · Light band
Also works
Abductor digiti minimi; finger extensors stabilize
How to perform +
Spread your fingers apart against a light loop, then bring them back under control.
Keep the wrist still and fingers comfortably extended.
Example volume · 1–2 sets × 8–12 reps