Effects of Isometric Muscle Fatigue on Trunk Muscle Stiffness

Muscle Tightness Clinical Trial

Official title:

Effects of Isometric Muscle Fatigue on Trunk Muscle Stiffness

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05490966
• Other study ID #: SWE_Isometric
• Status: Completed
• Phase: N/A
• Start date: September 10, 2022
• Est. completion date: October 18, 2022

Study information

• Verified date: October 2022
• Source: University of Primorska
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 22
• Est. completion date: October 18, 2022
• Est. primary completion date: October 1, 2022
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 40 Years

Eligibility

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

Related Conditions & MeSH terms

• Fatigue
• Muscle Tightness

Intervention

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.

Locations

Country	Name	City	State
Slovenia	University of Primorska, Faculty of Health Sciences	Izola

Sponsors (1)

Lead Sponsor	Collaborator
University of Primorska

Country where clinical trial is conducted

Slovenia, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Change in lumbar range of motion	Lumbar range of motion will be evaluated using Modified modified Schober test.	1 hour
Primary	Change of trunk extensors muscle stiffness	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	Change of muscle electromyography mean amplitude	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