Backpack Load and Spine Muscles Activity (BLSMA)

October 24, 2019 updated by: Sandra Rodrigues, University Fernando Pessoa

Influence of Different Backpack Loading Conditions on Neck and Lumbar Muscles Activity of Elementary School Children

The purpose of the present study is to analyze the influence of four backpack loading conditions (0, 10, 15 and 20% of body weight) on the electromyographic activity of the neck and lumbar muscles of elementary school children.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Elementary school children participated in the present study, between the ages of 6 and 10. Bilateral sternocleidomastoid, rectus abdominis and erector spinae muscles activity were recorded using surface electromyography (sEMG), while tested for the effect of four randomized backpack loading conditions.

Study Type

Interventional

Enrollment (Actual)

14

Phase

  • Not Applicable

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

6 years to 10 years (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • children with tutor consent

Exclusion Criteria:

  • children with cognitive impairment

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: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Healthy school children
elementary school children will be presented with different backpack loading conditions
Other: loading conditions
Different backpack loading conditions 0%, 10%, 15% and 20% allocated randomly

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Muscle Activity as a Measure of Route Mean Square
Time Frame: one year
EMG signals were initially filtered with a Notch Filter of 50hz, due to the DC power line, using MATLAB 7.11 (v.2010). The signal was then detrended, converted into millivolts and normalized. the normalized signal was then used to calculate the route mean square.
one year

Collaborators and Investigators

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

Sponsor

University Fernando Pessoa

Investigators

  • Principal Investigator: Sandra Rodrigues, MSc, Mphil, University Fernando Pessoa

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

June 1, 2014

Primary Completion (Actual)

July 1, 2015

Study Completion (Actual)

August 1, 2015

Study Registration Dates

First Submitted

March 21, 2016

First Submitted That Met QC Criteria

March 28, 2016

First Posted (Estimate)

April 1, 2016

Study Record Updates

Last Update Posted (Actual)

October 28, 2019

Last Update Submitted That Met QC Criteria

October 24, 2019

Last Verified

October 1, 2019

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • FCS-UFP-2016-03

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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