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Trial registered on ANZCTR


Registration number
ACTRN12618000997257
Ethics application status
Approved
Date submitted
16/05/2018
Date registered
14/06/2018
Date last updated
20/05/2021
Date data sharing statement initially provided
6/03/2020
Date results provided
6/03/2020
Type of registration
Prospectively registered

Titles & IDs
Public title
Effects of a brief intervention of physical exercise on somatosensory processing, lumbar lengthening and endurance of chronic low back pain patients.
Scientific title
Effects of a brief intervention of physical exercise on somatosensory processing, lumbar lengthening and endurance of chronic low back pain patients.
Secondary ID [1] 294153 0
nil
Universal Trial Number (UTN)
U1111-1209-8768
Trial acronym
LOLA (LOw Level of Activity)
Linked study record

Health condition
Health condition(s) or problem(s) studied:
low back pain 306779 0
Condition category
Condition code
Musculoskeletal 305880 305880 0 0
Other muscular and skeletal disorders

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Subjects will be randomly assigned to one of four study groups.
The study groups are composed of three intervention groups (1, 2 and 3) and one control group (4).
Intervention group (1):
A single sesion of 20 minutes of moderate intensity aerobic exercise, according to 3-4 at Borg Scale and 65-75% of maximum heart rate, will be performed on a treadmill.

Intervention group (2):
A single sesion of 20 minutes of individually (one-on-one) lumbar strengthening exercises, supervised by an expert, will be performed.
Participants will be prescribed exercises aimed at improving function of specific trunk muscles thought to control inter-segmental movement of the spine, including transversus abdominis, multifidus, the diaphragm or pelvic floor muscles.
Participants will be taught how to contract trunk muscles and progress until they will be able to maintain isolated contractions of the target muscles, each while maintaining normal respiration.
Each exercise will be carry out ten times during two series and series will progress according to the patient's tolerance.
Constant supervision and feedback such as palpation will be available to enhance learning of the task.

Intervention group (3):
A single sesion of 20 minutes of individually (one-on-one) lumbar flexibility exercises, supervised by an expert, will be performed according to the patient's tolerance.
Intervention code [1] 300443 0
Lifestyle
Intervention code [2] 300444 0
Behaviour
Comparator / control treatment
Control group (4):
A single sesion of 20 minutes of rest, filling out questionnaires, supervised by an expert, will be performed.
Control group
Active

Outcomes
Primary outcome [1] 304923 0
To evaluate sensitivity, it will be applied a sensitive stimulus with Von Frey filaments on different locations (erector spinae and gluteus medius trigger points, sacral base and index finger as control body locations). Subjects will be asked to indicate the moment they feel the contact of the filament.
Timepoint [1] 304923 0
The measurement will be performed immediately before the clinical interview and immediately after the exercises protocol.
3 measurements will be recorded and the average will be calculated.
Primary outcome [2] 304924 0
To evaluate hyperalgesia (a normally innocuous pressure of 2kg/cm2) and pain thresholds (with a maximum of 5kg/cm2) will be applied pressure on the same body locations than in primary outcome 1 (erector spinae and gluteus medius trigger points, sacral base and index finger as control body locations) with an algometer (area 1cm2).
Subjects will be asked to indicate their pain on a VAS scale.
Timepoint [2] 304924 0
The measurement will be performed immediately after the sensitivity assess.
3 measurements will be recorded and the average will be calculated.
Primary outcome [3] 304939 0
To analyze the differences in muscle lengthening, subjects will be asked to performance the back saver sit and reach test.
Timepoint [3] 304939 0
The measurement will be performed immediately after hyperalgesia and pain thresholds assess.
Two measurements will be recorded and the average will be calculated.
Secondary outcome [1] 343676 0
As a new primary outcome, to analyze the differences in muscle endurance, subjects will be asked to performance Ito test.
Timepoint [1] 343676 0
The measurement will be performed immediately after back saver sit and reach test.
Secondary outcome [2] 346860 0
6-Minute Walk Test (6MWT) will be used to asses aerobic capacity and endurance.
Timepoint [2] 346860 0
6MWT will be held 5 minutes before the exercises protocol.
Secondary outcome [3] 348053 0
We will also assess clinical and personal data (gender, age, height, weight, systolic and dyastolic blood preassure, pain, etc.) using a semi-structured interview, low back disability (using Oswestry Disability Index), mood state before exercise experiences (using SEES) and during the last week (POMS), physical activity enjoyment (PACES), and behavioral regultation in exercise (BREQ-3).
Timepoint [3] 348053 0
These data will be collected during the clinical interview, just before the 6-Minute Walk Test.

Eligibility
Key inclusion criteria
Patients with a history of mechanical and nonspecific low back pain for more than 6 weeks before the study or with intermittent low back pain who have experienced at least 3 episodes of back pain, each lasting more than a week during the year preceding the study.
Minimum age
18 Years
Maximum age
55 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
Suffering acute low back pain at the time of the study.
Suffering referred pain to the lower extremities.
Have a history of spinal surgery, vertebral fracture, pelvis fracture or lower limb fracture.
Have a history of hospitalization for severe trauma or accident
Suffering from arthritis or systemic diseases
Pregnancy

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Once accepted participation in the study, the volunteer will be registered with a code. Once registered, volunteers will be allocated to one of the four study groups.
An independent co-worker will allocate the subjects into the four study groups by means of sequentially numbered containers.
Neither evaluators nor intervention providers will be aware of intervention allocation sequence and group, or the aims of the study, in order to ensure blindness.
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
The method of secuence generation will be by simple randomization using Epidat program application.
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s

The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Not Applicable
Type of endpoint/s
Efficacy
Statistical methods / analysis
We will conducted pre-post analyses of variance on sensory and pain thresholds and low back muscle lengthening and endurance.

Recruitment
Recruitment status
Completed
Date of first participant enrolment
Anticipated
25/06/2018
Actual
25/06/2018
Date of last participant enrolment
Anticipated
Actual
28/09/2018
Date of last data collection
Anticipated
Actual
28/09/2018
Sample size
Target
80
Accrual to date
Final
83
Recruitment outside Australia
Country [1] 9628 0
Spain
State/province [1] 9628 0
Islas Baleares

Funding & Sponsors
Funding source category [1] 298791 0
Government body
Name [1] 298791 0
Spanish Ministry of Economy, Industry and Competitiviness (MINECO)
Country [1] 298791 0
Spain
Primary sponsor type
Individual
Name
Carolina Sitges
Address
Universidad de las Islas Baleares.
Edificio científico-técnico (IUNICS)
Carretera de valldemossa Km 7,5. 07122 Palma de Mallorca
Islas Baleares.
Country
Spain
Secondary sponsor category [1] 298783 0
Individual
Name [1] 298783 0
Olga Velasco
Address [1] 298783 0
Universidad de las Islas Baleares.
Edificio Beatriu de Pinós
Carretera de valldemossa Km 7,5. 07122 Palma de Mallorca
Islas Baleares.
Country [1] 298783 0
Spain

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 299735 0
Comite de Etica de la Investigación de las Islas Baleares (CEIC-IB)
Ethics committee address [1] 299735 0
Ethics committee country [1] 299735 0
Spain
Date submitted for ethics approval [1] 299735 0
05/09/2016
Approval date [1] 299735 0
26/10/2016
Ethics approval number [1] 299735 0
IB898/07 PI

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 81406 0
Dr Carolina Sitges Quirós
Address 81406 0
Universidad de las Islas Baleares. Edificio científico-técnico (IUNICS).
Carretera de valldemossa Km 7,5. 07122 Palma de Mallorca
Islas Baleares.
Country 81406 0
Spain
Phone 81406 0
+34971259809
Fax 81406 0
Email 81406 0
carol.sitges@uib.es
Contact person for public queries
Name 81407 0
Olga Velasco Roldán
Address 81407 0
Universidad de las Islas Baleares. Edificio Beatriu de Pinos.
Carretera de valldemossa Km 7,5. 07122 Palma de Mallorca
Islas Baleares.
Country 81407 0
Spain
Phone 81407 0
+34 971172713
Fax 81407 0
Email 81407 0
olga.velasco@uib.es
Contact person for scientific queries
Name 81408 0
Carolina Sitges Quirós
Address 81408 0
Universidad de las Islas Baleares. Edificio científico-técnico (IUNICS).
Carretera de valldemossa Km 7,5. 07122 Palma de Mallorca
Islas Baleares.
Country 81408 0
Spain
Phone 81408 0
+34971259809
Fax 81408 0
Email 81408 0
carol.sitges@uib.es

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
No/undecided IPD sharing reason/comment
Sharing individual participant data will be only used to validate published results and answer research questions.


What supporting documents are/will be available?

Doc. No.TypeCitationLinkEmailOther DetailsAttachment
7270Informed consent form    374587-(Uploaded-23-01-2020-22-53-54)-Study-related document.pdf



Results publications and other study-related documents

Documents added manually
No documents have been uploaded by study researchers.

Documents added automatically
No additional documents have been identified.