Finger-thumb coupling contributes to exaggerated thumb flexion in stroke survivors

Finger-thumb coupling contributes to exaggerated thumb flexion in stroke survivors.

The purpose of this study was to investigate altered finger-thumb coupling in individuals with chronic hemiparesis poststroke. First, an external device stretched finger flexor muscles by passively rotating the metacarpophalangeal (MCP) joints. Subjects then performed isometric finger or thumb force generation. Forces/torques and electromyographic signals were recorded for both the thumb and fi...

Finger - thumb coupling contributes to exaggerated thumb 1 flexion in stroke survivors

38 Objective: The purpose of this study was to investigate altered finger-thumb coupling in 39 individuals with chronic hemiparesis post-stroke. 40 Methods: First, an external device stretched finger flexor muscles by passively rotating the 41 metacarpophalangeal (MCP) joints. Subjects then performed isometric finger or thumb force 42 generation. Forces/torques and electromyographic (EMG) signa...

Involuntary Neuromuscular Coupling between the Thumb and Finger of Stroke Survivors during Dynamic Movement

Finger-thumb coordination is crucial to manual dexterity but remains incompletely understood, particularly following neurological injury such as stroke. While being controlled independently, the index finger and thumb especially must work in concert to perform a variety of tasks requiring lateral or palmar pinch. The impact of stroke on this functionally critical sensorimotor control during dyn...

Thumb and finger sucking.

Trigger thumb and finger in pediatric patients

Objectives: Trigger finger in pediatric patients is not as commonly seen as it is in adults. With that, it is ten times less likely to be seen than trigger thumb. Trigger finger usually presents in children less than 8 years old. It may be associated with anatomic, metabolic, inflammatory, and central nerve disorders. Flexion deformity of the finger is reported as the most frequent presentation...