Does Passive Spinal Mobilization Improve Shoulders Strength in Healthy Adults?

June 11, 2016 updated by: LO CHI NGAI, The Hong Kong Polytechnic University
Previous studies have shown that peripheral muscles weakness or inhibition is related to spinal disorders. Passive mobilization and manipulation are likely to reverse such muscle weakness for patients with spinal pain. The purpose of the study was to assess the effect of spinal mobilization on the maximal muscle strength of the shoulders.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Participants without existing neck pain or shoulder problem will be recruited. Subjects will be screened by 2 investigators independently for shoulder muscle weakness. Weakness is determined by the strength of the other side when one side is remarkably weaker or by comparing with the general strength of the deltoid muscle if both sides are suspected involved.

Suitable participants will undergo shoulder strength testing with a handheld dynamometer. Participants will be divided into the intervention group and the control group randomly. The shoulder strength will be tested by the second, individual blinded assessor.

Subjects in the intervention group will receive passive spinal mobilization at cervical 4-5 segment on the involved side(s); the control group will receive placebo intervention.

Each participant will be tested for 2 times, before and immediately after a C4-5 joint mobilization on the involved side (s).

Study Type

Interventional

Enrollment (Actual)

22

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

  • Hong Kong
      • Hong Kong, Hong Kong
        • The Hong Kong Polytechnic University

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:

  • Healthy adults

Exclusion Criteria:

  • People with active neck or should pain

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Experimental group
Passive mobilization on cervical spine
Behavioral: Passive mobilization
An anterior-posterior manual pressure act on the cervical spine of the subject
Placebo Comparator: Control
Placebo exercise on arms
Other: Placebo
The elbows will be put into a 90 deg elevated position and held for 5 secs, then back to resting position

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Deltoid muscle strength (dynamometer)
Time Frame: 10 minutes after the intervention
Immediate measure after the intervention by dynamometer
10 minutes after the intervention
Electromyography (EMG) (signal from deltoid muscle)
Time Frame: 10 minutes after the intervention
The EMG measure on the signal from deltoid muscle immediately after intervention
10 minutes after the intervention

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: Chi Ngai Lo, Master, 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

April 1, 2015

Primary Completion (Actual)

August 1, 2015

Study Completion (Actual)

August 1, 2015

Study Registration Dates

First Submitted

February 27, 2015

First Submitted That Met QC Criteria

March 18, 2015

First Posted (Estimate)

March 19, 2015

Study Record Updates

Last Update Posted (Estimate)

June 14, 2016

Last Update Submitted That Met QC Criteria

June 11, 2016

Last Verified

June 1, 2016

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • HSEARS20140926001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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