Movement guide
Lumbricals
Bend the large finger knuckles while helping straighten the middle and end joints.
01
Knuckle press into putty
Intrinsic hand control · Soft putty
Also works
Interossei; finger extensors coordinate joint position
How to perform +
Keep the finger tips relatively straight and bend at the large knuckles to press into soft putty. Release slowly.
Avoid collapsing the middle finger joints.
Example volume · 1–2 sets × 8–12 gentle reps