Sit upright in a chair with your forearm resting on your thigh or a bench, palm facing down and wrist just beyond the edge for free movement.
Hold a lightweight ball (e.g., tennis ball or similar) loosely in your fingers, wrist in slight flexion to start.
Quickly flick the wrist upwards to toss the ball vertically just a short distance into the air — aim for a sharp, snappy movement using only your wrist.
Allow the ball to rise and fall back into your hand, cushioning the catch with a slight flexion at the wrist.
Immediately repeat the motion, keeping the rhythm snappy and controlled.
Ensure the elbow and shoulder remain still — isolate the motion to the wrist.
Complete repetitions as prescribed by your physiotherapist.