Neurophysiologic Effects of Cervical Spinal Manipulation in Asymptomatic Individuals

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

59 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-05-01

Study Completion Date

2016-10-01

Brief Summary

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This study had the goal of analyse the neurophysiologic effects of both mechanical and manual cervical manipulation, in asymptomatic individuals.

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Detailed Description

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In this study, the investigators compared the effects of manual manipulation and instrument assisted manipulation of C3/C4 on muscle tone, elasticity and stiffness and on pressure pain threshold , and pressure pain perception. The muscles evaluated were upper trapezius and biceps brachialis, bilaterally. The study also had a placebo and a control group. All individuals were asymptomatic.

Conditions

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Healthy Subjects

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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Manual manipulation

In the Manual manipulation group, the thrust was applied in the right side of C3/C4 with neutral flexion/extension, ipsilateral side bending and contralateral rotation. Then, a low amplitude, high velocity thrust in rotation was delivered.

Group Type EXPERIMENTAL

Cervical spine manual manipulation

Intervention Type OTHER

In the Manual manipulation group, the thrust was applied in the right side of C3/C4 with neutral flexion/extension, ipsilateral side bending and contralateral rotation. Then, a low amplitude, high velocity thrust in rotation was delivered.

Mechanical manipulation

In the Mechanical manipulation group, the Activator instrument was applied on the right transverse apophyses of C3.

Group Type ACTIVE_COMPARATOR

Cervical spine mechanical manipulation

Intervention Type OTHER

In the Mechanical manipulation group, the Activator instrument was applied on the right transverse apophyses of C3.

Placebo

The subjects were positioned in the same pre-manipulative position as the manual manipulation group, but the thrust didn't occur. Instead, the position was hold for 3 seconds and then the subject's head returned passively to neutral position.

Group Type PLACEBO_COMPARATOR

Placebo intervention

Intervention Type OTHER

The subjects were positioned in the same pre-manipulative position as the manual manipulation group, but the thrust didn't occur. Instead, the position was hold for 3 seconds and then the subject's head returned passively to neutral position.

Control

The subjects stayed in supine position and no intervention occurred.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Cervical spine manual manipulation

In the Manual manipulation group, the thrust was applied in the right side of C3/C4 with neutral flexion/extension, ipsilateral side bending and contralateral rotation. Then, a low amplitude, high velocity thrust in rotation was delivered.

Intervention Type OTHER

Cervical spine mechanical manipulation

In the Mechanical manipulation group, the Activator instrument was applied on the right transverse apophyses of C3.

Intervention Type OTHER

Placebo intervention

The subjects were positioned in the same pre-manipulative position as the manual manipulation group, but the thrust didn't occur. Instead, the position was hold for 3 seconds and then the subject's head returned passively to neutral position.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Healthy subjects.
* Minimum of 18 years old.

Exclusion Criteria

* Pain in cervical region, shoulders or arms.
* History of trauma or disease in the cervical region or upper limb.
* Use of medication that could affect the outcomes (painkillers, NSAID, or anti depressives) during the last week.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes