Cross-training Effect of Whole-body Vibration (CTEWBW)

April 16, 2019 updated by: Ilhan KARACAN, Istanbul Physical Medicine Rehabilitation Training and Research Hospital
This study evaluates whether an increase in the ipsilateral knee flexor muscle strength transfers to the contralateral knee extensors which are not exposed to vibration, when unilateral-isolated whole body vibration (WBV) is applied to the lower extremity. In the half of volunteers the right leg were exposed vibration, while in the other half the right leg were exposed sham vibration. Muscle strength were measured with the Cybex® (Massachusetts, USA) extremity-testing system.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This study was included 40 healthy volunteers. The change in the quadriceps muscle strength after 20 session of WBV exercises was evaluated this study. In the WBV group, 20 sessions of unilateral lower extremity vibration exercises were performed with the Whole Body Vibration (WBV) device. WBV was applied when the subjects are in the semi-squat position. WBV was implemented with Powerplate® Pro5 (PowerPlate® International Ltd, London, United Kingdom). During 20 sessions, the WBV amplitude and vibration time were increased gradually. In the first session, the subjects were do a 30-second, 30-35, 40- and 45-Hz low-amplitude WBV while the knee and hip joint were in 30 degrees of flexion (in the semi-squat position); 10-second rest period between vibration applications were applied. A total duration of WBV was be two minutes. In the 20th session, the subjects were given a 60-second, 30-, 35-, 40- and 45-Hz high-amplitude WBV while the knee and hip joint were in 45 degrees of flexion; 10-second rest period between vibration applications were applied. A total duration of WBV was eight minutes. During WBV, the left lower extremity was in the knee-hip flexion position but was not exposed the vibration.

The same experimental protocol was applied to the isometric exercise (control) group. Unlike the experimental group, sham vibration was applied to the control group. Before and after 20 session-exercise, both knee extensor isokinetic muscle strength was measured.

Study Type

Interventional

Enrollment (Actual)

40

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

  • Turkey
      • Istanbul, Turkey
        • Istanbul Physical Medicine Rehabilitation Training and Research Hospital

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

20 years to 50 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Men with ages between 20-50 years
  • Being healthy
  • Being volunteer
  • Right-sided dominant

Exclusion Criteria:

  • Non-cooperative subject

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Experimental group
Whole body vibration was applied on the right lower extremity.
Device: Whole body vibration
Whole body vibration was applied on the right lower extremity in the experimental group.
Sham Comparator: Sham group
Unlike the experimental group, sham vibration was applied to the control group.
Device: Sham vibration
Sham vibration was applied on the right lower extremity in the Control sham group

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Muscle strength gain of the untrained contralateral quadriceps muscle
Time Frame: four months
Untrained contralateral quadriceps muscle strength was measured with the Cybex extremity-testing system before and after trial. Unit of this parameter was Nm
four months

Collaborators and Investigators

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

Sponsor

Istanbul Physical Medicine Rehabilitation Training and Research Hospital

Investigators

  • Study Chair: Ilhan Karacan, Assoc Prof, Istanbul Physical Medicine Rehabilitation Training and Research Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

November 12, 2018

Primary Completion (Actual)

January 1, 2019

Study Completion (Actual)

February 1, 2019

Study Registration Dates

First Submitted

November 18, 2018

First Submitted That Met QC Criteria

November 20, 2018

First Posted (Actual)

November 23, 2018

Study Record Updates

Last Update Posted (Actual)

April 18, 2019

Last Update Submitted That Met QC Criteria

April 16, 2019

Last Verified

April 1, 2019

More Information

Terms related to this study

Other Study ID Numbers

  • IstPMRTRH-BMR2

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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