Evidence Spotlight: Vibroacoustic Therapy, Spasticity & Gross Motor Function in Cerebral Palsy
STUDY OVERVIEW
A randomized controlled trial examining whether 40 Hz sound-wave vibration therapy, added to standard physiotherapy, could reduce spasticity and improve gross motor function in children with spastic cerebral palsy.
STUDY DETAILS
Study Type: Randomized controlled trial
Participants: 89 children
Population: Children with spastic cerebral palsy
Frequency Used: 40 Hz sound-wave vibration therapy
Study Duration: 3 months / 12 weeks
Treatment Frequency: Twice weekly
Comparison Group: Standard physiotherapy alone
Intervention Group: Sound-wave vibration therapy twice weekly in addition to standard physiotherapy
Primary Focus: Spasticity and gross motor function
WHAT THEY DID
Children were randomized into one of two groups.
The control group continued their regular physiotherapy program.
The intervention group received sound-wave vibration therapy twice weekly in addition to their regular physiotherapy program.
Randomization was stratified by Gross Motor Function Classification System level so that functional ability was similar across groups.
Children were assessed at baseline and again after the 12-week intervention period.
OUTCOMES MEASURED
Spasticity level using the Modified Ashworth Scale
Gross motor function using the Gross Motor Function Measure-88
Changes in motor performance across Gross Motor Function Classification System levels
MAJOR FINDINGS
Significant between-group differences were reported after the 3-month intervention period.
Children receiving sound-wave vibration therapy in addition to physiotherapy showed greater improvement in spasticity than children receiving physiotherapy alone.
Children receiving sound-wave vibration therapy in addition to physiotherapy showed greater improvement in gross motor function than children receiving physiotherapy alone.
The authors concluded that vibration therapy may decrease spasticity and improve motor performance in children with cerebral palsy.
ADDITIONAL REPORTED BENEFITS
The intervention was studied as an addition to—not a replacement for—regular physiotherapy.
The trial used a 40 Hz sound-wave vibration protocol, which makes it especially relevant to discussions of frequency-based and vibroacoustic approaches.
The study adds randomized controlled evidence to a research area that had previously contained relatively few studies involving children with cerebral palsy.
CLINICAL IMPLICATIONS
This randomized controlled trial suggests that 40 Hz sound-wave vibration therapy, when added to standard physiotherapy, may support reduced spasticity and improved gross motor function in children with spastic cerebral palsy.
The study evaluated outcomes over a 12-week treatment period. It does not establish that vibration therapy alone produces these changes, nor does it establish a universal protocol for all people with cerebral palsy.
WHY IT MATTERS
Cerebral palsy can involve differences in muscle tone, movement control, balance, posture, coordination, and participation in daily activity. Spasticity may affect comfort, range of motion, mobility, caregiving, positioning, and the ability to practice motor skills.
This research suggests 40 Hz sound-wave vibration therapy may offer meaningful support for:
Spasticity management
Gross motor function
Movement practice
Physiotherapy participation
Motor performance
Pediatric neurorehabilitation
Functional mobility support
Quality-of-life care
PUBLICATION & RESEARCH ACCESS
Primary Study:
Katušić A, Alimović S, Mejaski-Bosnjak V. (2013)
Title:
The Effect of Vibration Therapy on Spasticity and Motor Function in Children With Cerebral Palsy: A Randomized Controlled Trial
Published In:
NeuroRehabilitation
Volume and Pages:
32(1), 1–8
DOI:
10.3233/NRE-130817
Research Access:
https://pubmed.ncbi.nlm.nih.gov/23422453/