Acute Effects of Whole Body Vibration in Chronic Stroke

November 26, 2012 updated by: Marco Yiu-Chung Pang, The Hong Kong Polytechnic University

The Acute Effects of Whole Body Vibration Training With Different Frequencies on Neuromotor Performance in Individuals With Stroke

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.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

50

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
      • Hong Kong, China
        • Recruiting
        • The Hong Kong Polytechnic University
        • Contact:
        • Principal Investigator:
          • Marco YC Pang, PhD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: High frequency whole body vibration
This group will receive a single 10-minute session of WBV therapy. The frequency of the vibration signals will be set at 30Hz.
Procedure: High frequency whole body vibration
1 single session (10 minutes) of whole body vibration therapy at 30 Hz
Other Names:
  • Whole body vibration therapy (30Hz)
Active Comparator: low frequency whole body vibration
This group will receive a single 10-minute session of WBV. The frequency of the vibration signals will be set at 20 Hz.
Procedure: Low frequency whole body vibration
1 single session of whole body vibration therapy at 20 Hz
Other Names:
  • Whole body vibration therapy (20Hz)
Active Comparator: Control
This group will stand on the same vibration platform for 10 minutes, but no vibration will be given.
Procedure: control
1 single session of standing on the vibration platform, with no vibration signals delivered.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
knee extension isokinetic strength
Time Frame: 2 weeks
2 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Muscle activity (electromyography) of knee extensors
Time Frame: during treatment
during treatment
knee extension isometric strength
Time Frame: 2 weeks
2 weeks
knee flexion isometric strength
Time Frame: 2 weeks
2 weeks
knee flexion isokinetic strength
Time Frame: 2 weeks
2 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

The Hong Kong Polytechnic University

Investigators

  • Principal Investigator: Marco YC Pang, PhD, The Hong Kong Polytechnic University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2009

Primary Completion (Anticipated)

April 1, 2013

Study Completion (Anticipated)

July 1, 2013

Study Registration Dates

First Submitted

September 17, 2010

First Submitted That Met QC Criteria

September 28, 2010

First Posted (Estimate)

September 29, 2010

Study Record Updates

Last Update Posted (Estimate)

November 28, 2012

Last Update Submitted That Met QC Criteria

November 26, 2012

Last Verified

November 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • HSEARS20091016003-01

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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