Effects of Isometric Muscle Fatigue on Trunk Muscle Stiffness

October 18, 2022 updated by: MatejVoglar, University of Primorska
Interventional study of the effects of a trunk extensor muscles fatigue protocol on trunk extensors stiffness.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Single visit interventional study of the effects of a trunk extensor muscles fatigue protocol on multifidus and erector spinae muscle stiffness measured by Ultrasound based Shearwave elastography.

Study Type

Interventional

Enrollment (Actual)

22

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

  • Slovenia
      • Izola, Slovenia, 6310
        • University of Primorska, Faculty of Health Sciences

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 40 years (ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Physically active at least 3 hours a week

Exclusion Criteria:

  • Low back pain in the past 6 months
  • History of chronic low back pain
  • History of spinal or pelvic operation
  • Hypermobility, more than 4 points on Beighton scale
  • Cardiovascular or systemic diseases
  • Pregnancy

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: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Isometric fatigue
Fatiguing intermittent isometric exertions of trunk extensor muscles will be performed.
Other: isometric trunk extensor muscles fatigue
Participants will perform three sets of intermittent isometric efforts between 50 and 60 percents of their maximal isometric strength. A padded force sensor will be placed approximately at the level of the 7th thoracic vertebrae. The first two sets will last six minutes each, while the third set will last three minutes. Between each set participants will rest for two minutes.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change of trunk extensors muscle stiffness
Time Frame: 1 hour
Muscle stiffness will be measured at rest and during standardised sub-maximal exertions in prone lying position. Muscle stiffness will be expressed as the shear modulus value in kilopascals.
1 hour

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change of muscle electromyography mean amplitude
Time Frame: 1 hour
Muscle activation of trunk extensors will be measured using superficial electromyography at rest and during two standardised sub-maximal exertions in prone lying position (single arm raise and upper body raise). Mean amplitude in six to eight second time frames will be calculated.
1 hour

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in lumbar range of motion
Time Frame: 1 hour
Lumbar range of motion will be evaluated using Modified modified Schober test.
1 hour

Collaborators and Investigators

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

Sponsor

University of Primorska

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 (ACTUAL)

September 10, 2022

Primary Completion (ACTUAL)

October 1, 2022

Study Completion (ACTUAL)

October 18, 2022

Study Registration Dates

First Submitted

August 4, 2022

First Submitted That Met QC Criteria

August 5, 2022

First Posted (ACTUAL)

August 8, 2022

Study Record Updates

Last Update Posted (ACTUAL)

October 19, 2022

Last Update Submitted That Met QC Criteria

October 18, 2022

Last Verified

October 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SWE_Isometric

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Coded individual dat will be uploaded on public scientific data repository

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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