NCT03511404

Brief Summary

Non specific chronic low back pain (LBP) is a debilitating disorder characterized by tremendous personal and socioeconomic impact, with long-term sick leave, low quality of life, and very high financial costs. Evidence suggests that patients with non specific LBP presented with altered muscle activity pattern when compare with healthy people. It has been reviewed that exercise therapy was effective for modulation of muscle dysfunction in chronic low back pain. However, there is a lack of objective assessment of the pain relief in low back pain rehabilitation. Clinical application of surface electromyography (EMG) may provide a quantitative and objective tool to evaluate the rehabilitation outcome in patients with non specific chronic low back pain before and after treatment. Objectives: To verify the usefulness of surface electromyography (EMG) in low back pain (LBP) rehabilitation assessment. Setting: Out-patient physiotherapy musculoskeletal rehabilitation

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Oct 2015

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2015

Completed
2.5 years until next milestone

First Submitted

Initial submission to the registry

April 17, 2018

Completed
10 days until next milestone

First Posted

Study publicly available on registry

April 27, 2018

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2018

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2019

Completed
Last Updated

April 16, 2019

Status Verified

April 1, 2019

Enrollment Period

3.3 years

First QC Date

April 17, 2018

Last Update Submit

April 15, 2019

Conditions

Keywords

Non specific chronic low back painsurface electromyography (EMG)neuromuscular functionphysiotherapyNumeric Pain Rating Scale

Outcome Measures

Primary Outcomes (1)

  • Numeric Pain Rating Scale

    Intensity of self-reported pain was measured using a Numeric Pain Rating Scale (NPRS) anchored with 'no pain' at 0 and 'worst pain imaginable' at 10. Subjects rated their average pain over the preceding month prior to motor training, and rated their average pain across the final week of motor training.

    Baseline on enrollment and after six weeks physiotherapy

Secondary Outcomes (1)

  • surface electromyography (EMG)

    Baseline on enrollment and after six weeks physiotherapy

Study Arms (1)

Chronical LBP

EXPERIMENTAL

Patients with chronic low back pain to be measured with Numeric Pain Rating Scale (NPRS).

Other: physiotherapy rehabilitation

Interventions

All subjects will receive a course of conventional physiotherapy that incorporating components of pain relief and functional restoration with the use of electrotherapy and exercise therapy for twelve sessions twice weekly in six weeks guided by a registered physiotherapist in Hong Kong.

Chronical LBP

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • One hundred persons with non specific low back pain will be recruited consecutively from the Specialist Outpatient Department (SOPD) of Physiotherapy Department of Queen Elizabeth Hospital. Subjects will be included in the study if they presented with symptom duration of greater than three months with no radiological abnormality detected.

You may not qualify if:

  • All subjects should be able to provide informed consent and demonstrate sufficient ability to tolerate the experiment procedure to avoid aggravation of symptoms during the experiment procedures. Subjects will be excluded if they have any major orthopedic, neurological, circulatory or respiratory conditions, a history or family history of epilepsy, recent or current pregnancies, and previous surgery to the abdomen or back. The back pain history in the previous year will be documented for those eligible subjects.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Electromyography (EMG)system

Zhuhai, Guangdong, 519085, China

Location

Study Design

Study Type
interventional
Phase
not applicable
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SEQUENTIAL
Model Details: A correlation study between clinical examination by Numeric Pain Rating Scale (NPRS) and electrophysiology assessment by surface EMG will be conducted at enrollment and 6 weeks physiotherapy.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

April 17, 2018

First Posted

April 27, 2018

Study Start

October 1, 2015

Primary Completion

December 31, 2018

Study Completion

March 31, 2019

Last Updated

April 16, 2019

Record last verified: 2019-04

Locations