Constraint-Induced Movement Therapy in Obstetrical Brachial Plexus Palsy: A Single-Blind Pilot Randomized Controlled

Ana Carolina Rodrigues da Silva1, Rafael Santos Ferreira da Silva2, Heli de Oliveira Rodrigues1

  • 1Pediatric Occupational Therapy Department, AACD, São Paulo, SP, Brazil.

Insights

Constraint-Induced Movement Therapy (CIMT) significantly improves arm function in children with Obstetrical Brachial Plexus Palsy (OBPP). CIMT demonstrated superior outcomes in movement quality, frequency, and motor program acquisition compared to conventional therapy.

Area of Science:

  • Pediatric Rehabilitation
  • Neurology
  • Physical Therapy

Background:

  • Obstetrical Brachial Plexus Palsy (OBPP) can impair upper limb function in children.
  • Conventional therapies aim to improve motor skills but may have limitations.

Purpose of the Study:

  • To compare the effectiveness of Constraint-Induced Movement Therapy (CIMT) against conventional therapy for children with OBPP.
  • To assess improvements in arm usage frequency, quality, spontaneity, and new motor program acquisition.

Main Methods:

  • A pilot randomized controlled trial was conducted with 20 children diagnosed with OBPP.
  • Participants were assigned to either CIMT (intensive, 5x/week) or conventional therapy (2x/week).
  • Evaluations included the Pediatric Mal Activity Log - Revised (PMAL-R), Pediatric Arm Function Test (PAFT), and Inventory of New Motor Activities and Programs (INMAP) pre- and post-treatment.

Main Results:

  • CIMT showed significant superiority over the control group in improving movement frequency (p < 0.001) and quality (p < 0.001).
  • Enhanced spontaneity of use in unimanual tasks was observed with CIMT (PAFT: p = 0.022).
  • Significant gains in acquiring new motor programs were noted with CIMT (INMAP: p < 0.001), with large effect sizes.

Conclusions:

  • Constraint-Induced Movement Therapy (CIMT) is more effective than standard care for children with OBPP.
  • CIMT leads to substantial improvements in motor function, including movement quality, frequency, and the acquisition of new motor skills.
  • The findings support CIMT as a preferred therapeutic approach for improving upper limb function in OBPP.
Abstract