Smartwatch App for Vibration Stimulation

NCT ID: NCT04050917

Last Updated: 2020-03-06

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

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-07-17

Study Completion Date

2020-01-03

Brief Summary

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The objective of this study is to determine if the acute effect of vibration from a smartwatch on hand function is comparable to the effect of an existing laboratory prototype.

Detailed Description

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More than 4 million stroke survivors in the U.S. suffer from post-stroke hand disability. As hands are our primary means of interacting with the world, post-stroke hand impairment diminishes stroke survivors' abilities for activities of daily living including self-care, hygiene, employment, and leisure, and lowers independence. Hand impairment is difficult to treat. Limited resources in rehabilitation services and financial burdens make it impractical to simply increase rehabilitation service visits within the current healthcare system.

One way to augment hand function recovery is peripheral sensory stimulation. Afferent input is a powerful driver of change in the motor cortex. Sensory stimulation has been shown to improve motor recovery in previous studies. In particular, promising preliminary results have been obtained by using imperceptible random-frequency vibration applied via a watch. However, the laboratory prototype device for delivering this vibration must be improved in the form factor for patient adoption.

Therefore, we developed an App that can be installed in smartwatches and control the vibrator within the smartwatch to deliver vibratory stimulation to the user. The objective of this study is to determine if the acute effect of vibration from a smartwatch on hand function is comparable to the effect of an existing laboratory prototype.

Conditions

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Stroke Physical Disability

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Real stimulation

The smartwatch produces vibration stimulation.

Group Type EXPERIMENTAL

real stimulation

Intervention Type DEVICE

The smartwatch generates imperceptible vibratory stimulation.

No stimulation

The smartwatch produces no vibration.

Group Type SHAM_COMPARATOR

no stimulation

Intervention Type DEVICE

The smartwatch generates no stimulation.

Interventions

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real stimulation

The smartwatch generates imperceptible vibratory stimulation.

Intervention Type DEVICE

no stimulation

The smartwatch generates no stimulation.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Age = 18 or older
* At least 6 months post stroke
* The ability to perform The Box and Block Test with a score greater than zero and less than 40.

Exclusion Criteria

* Rigidity (Modified Ashworth Scale=5)
* Complete upper limb deafferentation
* Comorbidity (peripheral neuropathy, orthopaedic conditions in the hand that limit ranges of motion, premorbid neurologic conditions, compromised skin integrity of the hand/wrist due to long-term use of blood thinners)
* Language barrier or cognitive impairment that precludes following instructions and/or providing consent.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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MUSC Foundation for Research Development

UNKNOWN

Sponsor Role collaborator

Medical University of South Carolina

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Medical University of South Caorlina

Charleston, South Carolina, United States

Site Status

Countries

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United States

Other Identifiers

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Pro00088976

Identifier Type: -

Identifier Source: org_study_id

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