Effects of a 60-min Repeated Trunk Flexion Protocol on Trunk Neuromuscular Properties.

Sponsor

University of Primorska (Other)

Overall Status

Recruiting

CT.gov ID

NCT05511896

Collaborator

(none)

Enrollment

Location

Arm

Anticipated Duration (Months)

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

An interventional study on the effects of repeated trunk flexion exposure on trunk neuromuscular properties.

Condition or Disease	Intervention/Treatment	Phase
Occupational Exposure	Other: Repeated trunk flexion	N/A

Detailed Description

An interventional study will include 16 healthy young adults. All participants will complete a 60-min protocol of intermittent trunk flexion. Measurements of trunk neuromuscular properties will be performed prior to and following the 60-min protocol.

Study Design

Study Type:

Interventional

Anticipated Enrollment :

16 participants

Allocation:

N/A

Intervention Model:

Single Group Assignment

Masking:

None (Open Label)

Primary Purpose:

Basic Science

Official Title:

Effects of Repeated Trunk Flexion on Trunk Neuromuscular Properties.

Anticipated Study Start Date :

Sep 1, 2022

Anticipated Primary Completion Date :

Oct 1, 2022

Anticipated Study Completion Date :

Nov 1, 2022

Arms and Interventions

Arm	Intervention/Treatment
Experimental: Intermittent trunk flexion 60-min intermittent trunk flexion protocol.	Other: Repeated trunk flexion A 60-min intermittent trunk flexion protocol. Participants will sit on a standard height sit, with their knees bent at approximately 90° with their hands crossed on their chest. They will perform 40 sets of 60 s of maintaining a flexed position, interspersed with 30 s of rest. Participants will achieve the flexed position by tilting the pelvis posteriorly and leaning forward. During rest, participants will sit up straight without leaning on the support.

Arm

Intervention/Treatment

Experimental: Intermittent trunk flexion

60-min intermittent trunk flexion protocol.

Other: Repeated trunk flexion

A 60-min intermittent trunk flexion protocol. Participants will sit on a standard height sit, with their knees bent at approximately 90° with their hands crossed on their chest. They will perform 40 sets of 60 s of maintaining a flexed position, interspersed with 30 s of rest. Participants will achieve the flexed position by tilting the pelvis posteriorly and leaning forward. During rest, participants will sit up straight without leaning on the support.

Outcome Measures

Primary Outcome Measures

Change in muscle stiffness [90 minutes]
Muscle stiffness will be measured in prone lying using ultrasound-based shear wave elastography. Erector spinae and multifidus muscle stiffness will be expressed as the shear modulus value in kilopasquals.

Secondary Outcome Measures

Change in range of motion [90 minutes]
Trunk flexion range of motion will be evaluated using inertial measuring units during bending in standing position.
Change in length of the spine [90 minutes]
The length of spine will be measured on a custom-developed stadiometer, with the participants in a seated position.
Change in muscle activity [90 minutes]
Muscle activity will be measured using electromyography during standing.

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	Primorska	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:

NCT05511896

Other Study ID Numbers:

SWE_Flexion1

First Posted:

Aug 23, 2022

Last Update Posted:

Aug 23, 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

bending, load, stiffness, elastography, deformation

Study Results

No Results Posted as of Aug 23, 2022