Surface Electromyography in Stratifying Chronic Low Back Pain.

The Application Of Surface Electromyography (SEMG) In Stratifying Chronic Low Back Pain

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04960358

Enrollment

Registered

2021-07-13

Start date

2019-11-01

Completion date

2020-12-31

Last updated

2021-07-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Low Back Pain

Brief summary

Surface Electromyography can be utilised to detect normal muscle electrical activity during maximum forward flexion termed Flexion Relaxation Response (FRR)

Detailed description

In this study, our primary objective is to assess FRR and disability (ODI) correlation protocol as an objective tool in stratifying Chronic LBP. We also would like to evaluate the relationship between FRR with pain intensity and lumbar range of motion as our secondary objective.

Interventions

PROCEDURESurface Electromyography

will be applied Surface Electromyography to assess Flexion Relaxation Response

Study design

Observational model

CASE_CONTROL

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

20 Years to 70 Years

Healthy volunteers

Yes

Inclusion criteria

* Participants aged between 20 - 70 years old * Mechanical LBP \> 6 weeks (not acute LBP) * Not received any specific exercise spinal manipulation or surgery to improve LBP within the last 3 months.

Exclusion criteria

* Pregnancy * Radicular LBP patients or specific-spinal pathology / red-flags. * Surgical intervention for the current LBP complaint (includes traumatic causes of LBP with surgical intervention) * Cognitive or communication difficulty preventing active participation in exercises or communicating pain scores

Design outcomes

Primary

Measure	Time frame	Description
Oswestry Low Back Pain Disability Questionnaire	1 YEAR	Questionnaire of the functional assessment for the low back pain patient
Flexion Relaxation Response (FRR) ratio	1 YEAR	The FRR ratio was calculated from the best SEMG values obtained during Forward Lumbar Flexion & Extension

Secondary

Measure	Time frame	Description
Visual Analog Scale	1 YEAR	Representing range of pain intensity from no pain on the far left to most intense pain on the far right.
Gross Range of Motion	1 YEAR	Degree of trunk motion at maximum voluntary flexion, measured by inclinometer at the level of T12

Countries

Malaysia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026