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OpenTrials
Completed

NCT Number: NCT02392949

Does Passive Spinal Mobilization Improve Shoulders Strength in Healthy Adults?

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.

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Key information

Conditions

Healthy

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

The Hong Kong Polytechnic University

Hong Kong

About this study

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).

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy adults

Exclusion criteria

  • People with active neck or should pain

Treatment and study plan

Passive mobilization

Behavioral

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

Placebo

Other

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

Primary outcomes

  1. Deltoid muscle strength (dynamometer)

    Time frame: 10 minutes after the intervention

    Immediate measure after the intervention by dynamometer

  2. 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

Sponsors and collaborators

Lead sponsor

The Hong Kong Polytechnic University

Other

Registry information

Important dates

Study start
2015
Primary completion
2015
Study completion
2015
First posted
Mar 19, 2015
Registry last updated
Jun 14, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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