Vibration Intervention to Improve Bone and Muscle in Children With Cerebral Palsy

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

34 participants

Study Classification

INTERVENTIONAL

Study Start Date

2004-09-30

Study Completion Date

2007-09-30

Brief Summary

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Cerebral palsy is a group of disorders characterized by lack of coordination in the muscles, loss of movement, and speech disturbances. These disorders are caused by injuries to the brain that occur during fetal development or near the time of birth. The purpose of this study is to determine the effects of high frequency, low magnitude vibration on bone and muscle in children with cerebral palsy.

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Detailed Description

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The extent of bone mass built up during childhood and adolescence is the most important determinant of osteoporosis later in life. Some disabled children, such as those with cerebral palsy, are particularly vulnerable to low bone mass accumulation due to decreased mobility and weight-bearing. These children also have poor muscle strength and control, which limits function and contributes to the lack of mechanical stimulation needed to build bone mass. The most common treatment for these children is physical therapy, which is time- and labor-intensive and may not be adequately available to them. Whole body vibration has shown promise as an alternative method for stimulating increases in bone mass and improvements in muscle. The purpose of this study is to evaluate the effects of high frequency, low magnitude vibration on bone and muscle in children with cerebral palsy. This intervention may be useful as a noninvasive, nonpharmacological treatment for low bone mass and poor muscle function in these children.

This study will last 1 year. All participants will visit the hospital 3 times, at study entry and Months 6 and 12. At each visit, height and weight will be measured, muscle strength and balance will be tested, and bones and muscles in the spine and lower leg will be imaged with computed tomography (CT), a special x-ray machine. Participants will be randomly assigned to one of two groups. For this study, all participants will be asked to stand for 10 minutes every day for 1 year. For Group 1, a vibrating platform will be used for the 10-minute standing sessions during the first half of the study but not during the second half of the study. For Group 2, this will be reversed and the vibrating platform will not be used during the first half of the study but will be used during the second half of the study.

Conditions

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Cerebral Palsy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Vibration

High frequency, low magnitude vibration at 30 Hz, 10 min/day using vibrating platform from Juvent Medical Inc.

Group Type EXPERIMENTAL

High frequency, low magnitude vibration

Intervention Type DEVICE

High frequency, low magnitude vibration at 30 Hz, 10 min/day using vibrating platform from Juvent Medical Inc.

Standing

Standing 10 min/day

Group Type ACTIVE_COMPARATOR

Standing

Intervention Type OTHER

Standing 10 min/day

Interventions

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High frequency, low magnitude vibration

High frequency, low magnitude vibration at 30 Hz, 10 min/day using vibrating platform from Juvent Medical Inc.

Intervention Type DEVICE

Standing

Standing 10 min/day

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of cerebral palsy
* Low vertebral bone density
* Able to stand for 10 minutes with handheld support
* Parent or guardian willing to provide informed consent

Exclusion Criteria

* Surgery, casting, or receipt of botulinum toxin in the 12 months prior to study entry
* Planned surgery, casting, or receipt of botulinum toxin in the 12 months after study entry
* Metal rods or plates in tibia or lumbar spine
* Severe scoliosis (greater than 20 degrees) or bowing of tibia
* Medical condition other than cerebral palsy affecting bone or muscle
* Require corticosteroids or seizure medication (phenytoin)

Minimum Eligible Age

6 Years

Maximum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Responsible Party

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Tishya Wren

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Tishya A.L. Wren, PhD

Role: PRINCIPAL_INVESTIGATOR

Children's Orthopaedic Center, Children's Hospital Los Angeles, and Departments of Orthopaedics and Radiology, Keck School of Medicine, Department of Biomedical Engineering, School of Engineering, University of Southern California