Beyond spasticity reduction: botulinum toxin-a injection is associated with changes in abnormal flexor synergies of the upper limb in chronic stroke

Key Points

• The research explores how botulinum toxin type A affects not just muscle tone but also abnormal flexor synergies in chronic stroke patients.
• Evaluated the impact of botulinum toxin type A on muscle tone and flexor synergies.
• Incorporated kinematic assessments to quantify abnormal flexor synergies.
• Botulinum toxin type A significantly reduced muscle tone.
• The treatment led to observable changes in abnormal flexor synergies, indicating functional improvements.