Cervical Activation During Elastic and Manual Resistance (CervEMG)

January 11, 2016 updated by: Sport and Spine Rehab Clinical Research Foundation

EMG Activation of Cervical Musculature During Therapeutic Exercise With Thera-Band(R) Resistance Versus Manual Resistance

Cervical pain is a condition that affects 14.6% of all adults annually. Of this annual prevalence, 37.3% experience persistent neck pain with periodic recurring episodes. The purpose of this study is to compare muscle activation patterns of the cervical musculature during exercises with elastic versus manual resistance in a neck pain and asymptomatic populations. Methods: A convenience sample of 15 healthy, physically active participants and 15 current patients diagnosed with non-radicular cervical pain will be recruited. Exclusionary criteria will include: current cervical or upper extremity injury (healthy group), history of neck surgery, corticosteroid treatment within the last two weeks, and radicular signs or symptoms. Surface electromyography will be used to quantify the activity level of the bilateral SCM, AS, Cervical Paraspinal (CP), and the Upper Trapezius (UT) muscles while performing a series of 6 exercises with elastic resistance using Thera-Band® Resistance Bands and manual resistance. The area will be prepped and surface electrodes placed on the corresponding muscles. The movement will be standardized by using the peak activation (PA) of each muscle during full flexion-extension movement to create a percentage of peak activation (%PA). The testing battery will consist of 6 exercises with elastic resistance and manual resistance, totaling 12 different trials. Each trial will involve 5 repetitions, each held for 5 seconds. The exercises will include cervical: extension, flexion, left rotation, right rotation, left side bending, and right side bending. The men will use the green and women will use the red Thera-Band® Resistance Band. The order of exercises will be randomized in to two parts to minimize the effect of fatigue. First, cervical flexion and extension with manual and elastic resistance will be randomized. Secondly, the remaining 8 exercises will be randomized. Following each exercise, the patient will rate their perceived level of exertion on the Thera-band® Resistance Intensity Scale for Exercise (RISE).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

30

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

  • United States
    • Maryland
      • Rockville, Maryland, United States, 20852
        • Sport & Spine Rehab

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 to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • healthy physically active subjects (healthy group)
  • patients diagnosed with non-radicular cervical neck pain (neck pain group)
  • 18-65

Exclusion Criteria:

  • current cervical or upper extremity injury (healthy group)
  • history of neck surgery
  • corticosteroid treatment within the last two weeks
  • radicular signs or symptoms

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: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cervical Pain
Thera-Band elastic and manual resistance neck exercises for neck strengthening
Device: Neck exercises using both manual and Thera-Band elasatic resistance
Exercises will include cervical flexion and extension, and cervical right and left side-bending, and rotation. All 6 exercises will be done with both manual and elastic (Thera-Band) resistance.Manual Resistance is applied by the subject placing their own hand on their head and pushing in to it. Thera-Band bands will be used to provide elastic resistance
Other Names:
  • Thera-Band
Experimental: Healthy
Thera-Band elastic and manual resistance neck exercises for neck strengthening
Device: Neck exercises using both manual and Thera-Band elasatic resistance
Exercises will include cervical flexion and extension, and cervical right and left side-bending, and rotation. All 6 exercises will be done with both manual and elastic (Thera-Band) resistance.Manual Resistance is applied by the subject placing their own hand on their head and pushing in to it. Thera-Band bands will be used to provide elastic resistance
Other Names:
  • Thera-Band

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percent of Peak Activation (%PA)
Time Frame: One 1 hour session
8 muscles during 12 exercises were analyzed in 30 subjects, totaling 2880 data points. At the beginning of the study, peak activation (PA) was assessed for each muscle during full flexion-extension, used as a reference exercise. For each subject, the EMG signals of the muscles during the 12 exercises were smoothed, rectified and analyzed using a root-mean-square algorithm and the greatest activation of each muscle was used. After the PA for each muscle was determined, it was compared to the PA of the reference exercise for the respective muscle group, and expressed as a percent of the peak activation (%PA). In some cases the %PA is greater than 100%. This is possible as the PA was assessed during a full flexion-extension movement. During an exercise some muscles generated greater PA and therefore when the calculations were performed the %PA was greater than 100%. Due to the extensive amount of data, we have provided the Left Cervical Paraspinals %PA results for each exercise.
One 1 hour session

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Perceived Exertion
Time Frame: 12 exercises during one 1 hour session
Thera-Band(R) RISE (Resistance Intensity Scale for Exercise) Scale to measure amount of perceived exertion during resistance band exercises. Participants were asked to rate the intensity of an exercise on a scale from 0 to 10, 0 being no resistance and 10 being the maximum resistance.
12 exercises during one 1 hour session

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sport and Spine Rehab Clinical Research Foundation

Investigators

  • Principal Investigator: Barton Bishop, DPT, Sport & Spine Rehab Clinical Research Foundation

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, 2014

Primary Completion (Actual)

August 1, 2014

Study Completion (Actual)

August 1, 2014

Study Registration Dates

First Submitted

April 22, 2014

First Submitted That Met QC Criteria

April 24, 2014

First Posted (Estimate)

April 28, 2014

Study Record Updates

Last Update Posted (Estimate)

February 9, 2016

Last Update Submitted That Met QC Criteria

January 11, 2016

Last Verified

January 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SSR04

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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