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The Effects of Passive and Active Vibration Therapy on Grip Strength and Myoelectric Activity

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified October 2008 by Logan College of Chiropractic.
Recruitment status was:  Recruiting
Information provided by:
Logan College of Chiropractic Identifier:
First received: October 23, 2008
Last updated: NA
Last verified: October 2008
History: No changes posted
This pilot study is designed to analyze the effects of Vibration Therapy (VT) on grip strength and level of forearm contraction by measuring hand grip dynamometry and surface Electromyography (sEMG) using the BioPac sEMG and digital dynamometry devices after the application of both passive and active Vibrational Therapy (VT) using the PowerPlate.

Condition Intervention Phase
Procedure: Vibration with flexion
Procedure: Vibration without flexion
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Investigator)
Primary Purpose: Treatment
Official Title: The Effects of Passive and Active Vibration Therapy on Grip Strength and Myoelectric Activity

Resource links provided by NLM:

Further study details as provided by Logan College of Chiropractic:

Primary Outcome Measures:
  • Surface EMG and Grip Strength Dynamometry [ Time Frame: Pre and Post treatment ]

Estimated Enrollment: 40
Study Start Date: October 2008
Estimated Study Completion Date: November 2008
Estimated Primary Completion Date: November 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Active
Vibration with forearm flexion (active contraction)
Procedure: Vibration with flexion
Vibration with forearm flexion (active contraction)
Sham Comparator: Passive
Vibration without forearm flexion (passive)
Procedure: Vibration without flexion
Vibration without forearm flexion (passive)


Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • participants will be Logan students, faculty and staff 18-65 yoa
  • asymptomatic subject will be included in the study
  • participants must complete a survey and consent form
  • only participants that meet the criteria of the survey will be accepted in the study

Exclusion Criteria:

  • participant with any recent or past disease/injuries/trauma/fracture (i.e., arthritis, carpal tunnel, etc.)
  • who have had joint replacements
  • who are currently engaging in physical rehabilitation
  • who are pregnant will be excluded from the study
  • history of cardiovascular disease
  • history of cancer
  • history of epilepsy
  • history of diabetes mellitus, or past retinal surgeries
  • participants cannot have Chiropractic manipulation or engage in weight lifting or other extreme exercise throughout the duration of the study
  Contacts and Locations
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Please refer to this study by its identifier: NCT00779610

Contact: John Zhang, MD, PhD 636-230-1920

United States, Missouri
Logan College of Chiropractic Recruiting
Chesterfield, Missouri, United States, 63006
Sponsors and Collaborators
Logan College of Chiropractic
  More Information

Responsible Party: Dr. John Zhang, Logan College of Chiropractic Identifier: NCT00779610     History of Changes
Other Study ID Numbers: SR0810080147
Study First Received: October 23, 2008
Last Updated: October 23, 2008 processed this record on May 25, 2017