Does Passive Spinal Mobilization Improve Shoulders Strength in Healthy Adults?

NCT ID: NCT02392949

Last Updated: 2016-06-14

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 22 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2015-04-30
• Study Completion Date: 2015-08-31

Brief Summary

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.

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).

Conditions

Healthy

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: SINGLE

Study Groups

Experimental group

Passive mobilization on cervical spine

Group Type: EXPERIMENTAL

Passive mobilization

Intervention Type: BEHAVIORAL

An anterior-posterior manual pressure act on the cervical spine of the subject

Control

Placebo exercise on arms

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: OTHER

The elbows will be put into a 90 deg elevated position and held for 5 secs, then back to resting position

Interventions

Passive mobilization

An anterior-posterior manual pressure act on the cervical spine of the subject

Intervention Type: BEHAVIORAL

Placebo

The elbows will be put into a 90 deg elevated position and held for 5 secs, then back to resting position

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Healthy adults

Exclusion Criteria

• People with active neck or should pain

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

The Hong Kong Polytechnic University

OTHER

Sponsor Role: lead

Responsible Party

LO CHI NGAI

Mr. Lo Chi Ngai

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Chi Ngai Lo, Master

Role: PRINCIPAL_INVESTIGATOR

The Hong Kong Polytechnic University

Locations

The Hong Kong Polytechnic University

Hong Kong, , Hong Kong

Countries

Hong Kong

Other Identifiers

HSEARS20140926001

Identifier Type: -

Identifier Source: org_study_id