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Acute Effects of Whole Body Vibration in Chronic Stroke

Primary Purpose

Stroke

Status
Unknown status
Phase
Not Applicable
Locations
China
Study Type
Interventional
Intervention
High frequency whole body vibration
Low frequency whole body vibration
control
Sponsored by
The Hong Kong Polytechnic University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Stroke focused on measuring vibration, muscle, cerebrovascular accident, exercise, rehabilitation

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • a diagnosis of stroke
  • stroke onset >6 months
  • >18 years of age
  • >able to walk for short distance independently with or without walking aid
  • able to understand simple verbal commands

Exclusion Criteria:

  • other neurological conditions
  • peripheral vascular disease
  • vestibular disorders
  • significant musculoskeletal disorders (e.g. rheumatoid arthritis)
  • pregnancy

Sites / Locations

  • The Hong Kong Polytechnic UniversityRecruiting

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Active Comparator

Active Comparator

Arm Label

High frequency whole body vibration

low frequency whole body vibration

Control

Arm Description

This group will receive a single 10-minute session of WBV therapy. The frequency of the vibration signals will be set at 30Hz.

This group will receive a single 10-minute session of WBV. The frequency of the vibration signals will be set at 20 Hz.

This group will stand on the same vibration platform for 10 minutes, but no vibration will be given.

Outcomes

Primary Outcome Measures

knee extension isokinetic strength

Secondary Outcome Measures

Muscle activity (electromyography) of knee extensors
knee extension isometric strength
knee flexion isometric strength
knee flexion isokinetic strength

Full Information

First Posted
September 17, 2010
Last Updated
November 26, 2012
Sponsor
The Hong Kong Polytechnic University
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1. Study Identification

Unique Protocol Identification Number
NCT01211093
Brief Title
Acute Effects of Whole Body Vibration in Chronic Stroke
Official Title
The Acute Effects of Whole Body Vibration Training With Different Frequencies on Neuromotor Performance in Individuals With Stroke
Study Type
Interventional

2. Study Status

Record Verification Date
November 2012
Overall Recruitment Status
Unknown status
Study Start Date
November 2009 (undefined)
Primary Completion Date
April 2013 (Anticipated)
Study Completion Date
July 2013 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
The Hong Kong Polytechnic University

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
Whole body vibration has been found to be useful in promoting bone health, balance, and muscle performance in older adults. The overall aim of the proposed study is to determine whether whole body vibration (WBV) has immediate beneficial effect in neuromotor performance in patients with stroke. It is hypothesized that a single session of WBV will induce significant improvement in leg muscle strength in people with chronic stroke.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Stroke
Keywords
vibration, muscle, cerebrovascular accident, exercise, rehabilitation

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Crossover Assignment
Masking
Outcomes Assessor
Allocation
Randomized
Enrollment
50 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
High frequency whole body vibration
Arm Type
Experimental
Arm Description
This group will receive a single 10-minute session of WBV therapy. The frequency of the vibration signals will be set at 30Hz.
Arm Title
low frequency whole body vibration
Arm Type
Active Comparator
Arm Description
This group will receive a single 10-minute session of WBV. The frequency of the vibration signals will be set at 20 Hz.
Arm Title
Control
Arm Type
Active Comparator
Arm Description
This group will stand on the same vibration platform for 10 minutes, but no vibration will be given.
Intervention Type
Procedure
Intervention Name(s)
High frequency whole body vibration
Other Intervention Name(s)
Whole body vibration therapy (30Hz)
Intervention Description
1 single session (10 minutes) of whole body vibration therapy at 30 Hz
Intervention Type
Procedure
Intervention Name(s)
Low frequency whole body vibration
Other Intervention Name(s)
Whole body vibration therapy (20Hz)
Intervention Description
1 single session of whole body vibration therapy at 20 Hz
Intervention Type
Procedure
Intervention Name(s)
control
Intervention Description
1 single session of standing on the vibration platform, with no vibration signals delivered.
Primary Outcome Measure Information:
Title
knee extension isokinetic strength
Time Frame
2 weeks
Secondary Outcome Measure Information:
Title
Muscle activity (electromyography) of knee extensors
Time Frame
during treatment
Title
knee extension isometric strength
Time Frame
2 weeks
Title
knee flexion isometric strength
Time Frame
2 weeks
Title
knee flexion isokinetic strength
Time Frame
2 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: a diagnosis of stroke stroke onset >6 months >18 years of age >able to walk for short distance independently with or without walking aid able to understand simple verbal commands Exclusion Criteria: other neurological conditions peripheral vascular disease vestibular disorders significant musculoskeletal disorders (e.g. rheumatoid arthritis) pregnancy
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Ricky WK Lau, MSc
Phone
85298743644
Email
Rickylauwk@yahoo.com.hk
First Name & Middle Initial & Last Name or Official Title & Degree
Marco YC Pang, PhD
Phone
85227667156
Email
Marco.Pang@inet.polyu.edu.hk
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Marco YC Pang, PhD
Organizational Affiliation
The Hong Kong Polytechnic University
Official's Role
Principal Investigator
Facility Information:
Facility Name
The Hong Kong Polytechnic University
City
Hong Kong
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Ricky WK Lau, MSc
Phone
85298743644
Email
Rickylauwk@yahoo.com.hk
First Name & Middle Initial & Last Name & Degree
Marco YC Pang, PhD

12. IPD Sharing Statement

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Acute Effects of Whole Body Vibration in Chronic Stroke

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