The Reversal of Neuromuscular Adaptation in Human With Spinal Cord Injury II

NCT ID: NCT01968096

Last Updated: 2013-10-23

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

52 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-08-31

Brief Summary

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Following injury to the spinal cord, the spinal circuit undergoes a series of adaptations. In parallel with the spinal circuit adaptation, the muscular properties also adapt. In human and animal studies, histochemical and physiological evidences showed that the paralyzed muscle transferred from slow, fatigue-resistant to fast, fatigable after injury.

Reversal of neuromuscular property for persons with SCI needs to be resolved. Studies using high load electrical stimulations showed a reverse change of muscular properties, such as hypertrophy and reversal of fiber type transformations but failed to show a reversal of spinal circuitry function. Previous studies found that fast continuous passive motion (CPM) altered the H reflex excitability in human. Animal studies found that passive cycling and passive stretching delayed atrophy and influenced the transition of type I and IIa MHC. Theses findings lead to a hypothesis that mechanical stimulation might be able to reverse both spinal circuitry and muscular properties after SCI but it has not been confirmed in human study.

The purpose of this project is to investigate the effect of mechanical stimulation by fast CPM on the reversing adaptation of human paralyzed muscle after SCI.

Detailed Description

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Conditions

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Spinal Cord Injury(SCI)

Keywords

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Reflex Post activation Spinal cord injury Pre-synaptic inhibition Machine driven passive strech

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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SCI subjects

Stage 1 subjects: pilot study:understand post activation depression with spinal cord injury to avoid the influence of the suprasegmental level.

Group Type NO_INTERVENTION

No interventions assigned to this group

Incomplete SCI subjects

Stage 2 subjects: pilot study:The strength of depression will be evaluated in individuals with and without SCI.

Group Type NO_INTERVENTION

No interventions assigned to this group

Health subjects

Stage 2 subjects: pilot study:The strength of depression will be evaluated in individuals with and without SCI.

Group Type NO_INTERVENTION

No interventions assigned to this group

SCI subjects with high muscle tone (High frequency)

Stage 3 subjects:A rehabilitation program of machine driven passive stretch(High frequency) will be executed .

Group Type EXPERIMENTAL

home-based ankle continuous passive motion machine.

Intervention Type DEVICE

A rehabilitation program of machine driven passive stretch.

SCI subjects with high muscle tone(low frequency)

Stage 3 subjects:A rehabilitation program of machine driven passive stretch(Low frequency) will be executed.

Group Type EXPERIMENTAL

home-based ankle continuous passive motion machine.

Intervention Type DEVICE

A rehabilitation program of machine driven passive stretch.

SCI subjects with high muscle tone

Stage 3 subjects:Control subjects

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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home-based ankle continuous passive motion machine.

A rehabilitation program of machine driven passive stretch.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Clinical diagnosis of spinal cord injury \< 2 years

Stage 2 subjects: Incomplete spinal cord injury subject


* Clinical diagnosis of incomplete spinal cord injury
* ASIA classification:B, C, or D

Stage 3 subjects: Spinal cord injury subjects with high muscle tone


* Clinical diagnosis of spinal cord injury.
* ASIA classification: A, B, C, or D
Minimum Eligible Age

20 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Chang Gung University

OTHER

Sponsor Role lead

Responsible Party

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Ya-Ju Chang

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Chang Gung University

Taoyuan District, , Taiwan

Site Status RECRUITING

Countries

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Taiwan

Facility Contacts

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Ya-Ju Chang, PhD

Role: primary

Other Identifiers

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NSC102-2314-B-182-021-MY2

Identifier Type: -

Identifier Source: secondary_id

102-1780C

Identifier Type: -

Identifier Source: org_study_id