Effects of Isometric Muscle Fatigue on Trunk Muscle Stiffness

Sponsor

University of Primorska (Other)

Overall Status

Recruiting

CT.gov ID

NCT05490966

Collaborator

(none)

Enrollment

Location

Arm

Anticipated Duration (Days)

20.3

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

Interventional study of the effects of a trunk extensor muscles fatigue protocol on trunk extensors stiffness.

Condition or Disease	Intervention/Treatment	Phase
Muscle Tightness	Other: isometric trunk extensor muscles fatigue	N/A

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 Design

Study Type:

Interventional

Anticipated Enrollment :

20 participants

Allocation:

N/A

Intervention Model:

Single Group Assignment

Masking:

None (Open Label)

Primary Purpose:

Basic Science

Official Title:

Effects of Isometric Muscle Fatigue on Trunk Muscle Stiffness

Anticipated Study Start Date :

Sep 1, 2022

Anticipated Primary Completion Date :

Oct 1, 2022

Anticipated Study Completion Date :

Oct 1, 2022

Arms and Interventions

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.

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.

Outcome Measures

Primary Outcome Measures

Change of trunk extensors muscle stiffness [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.

Secondary Outcome Measures

Change of muscle electromyography mean amplitude [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.

Other Outcome Measures

Change in lumbar range of motion [1 hour]
Lumbar range of motion will be evaluated using Modified modified Schober test.

Eligibility Criteria

Criteria

Ages Eligible for Study:

18 Years to 40 Years

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Yes

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

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	University of Primorska, Faculty of Health Sciences	Izola		Slovenia	6310

Sponsors and Collaborators

University of Primorska

Investigators

Principal Investigator: Matej Voglar, PhD, University of Primorska, Faculty of Health Sciences

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.

Responsible Party:

MatejVoglar, Assistant Professor, PhD, University of Primorska

ClinicalTrials.gov Identifier:

NCT05490966

Other Study ID Numbers:

SWE_Isometric

First Posted:

Aug 8, 2022

Last Update Posted:

Aug 10, 2022

Last Verified:

Aug 1, 2022

Individual Participant Data (IPD) Sharing Statement:

Yes

Plan to Share IPD:

Yes

Studies a U.S. FDA-regulated Drug Product:

Studies a U.S. FDA-regulated Device Product:

Keywords provided by MatejVoglar, Assistant Professor, PhD, University of Primorska

multifidus

erector spinae

muscle stiffness

Additional relevant MeSH terms:

Fatigue

Study Results

No Results Posted as of Aug 10, 2022