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Mechanical Low Back PainCORE-BACKNCT07727525

Core Strengthening Effects in Low Back Pain in Overweight Adults

A study testing Core Strengthening Exercise Program + Conventional Physical Therapy and Conventional Physical Therapy in people with Mechanical Low Back Pain and Chronic Low Back Pain, run by Ibadat International University, Islamabad at 1 site in Pakistan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Mechanical low back pain is one of the most common musculoskeletal disorders among overweight adults and can lead to pain, disability, and reduced quality of life. Weakness of the core muscles may contribute to poor spinal stability and persistence of symptoms. Read more about this study

Who is it for?
Ages 25 to 45 years
What is being tested?
Core Strengthening Exercise Program + Conventional Physical Therapy and Conventional Physical Therapy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 sitePakistan
Study dates
15 Jan 2023to 30 Jun 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 25 to 45 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Male and female participants. Age between 25 and 45 years. Diagnosed with chronic mechanical low back pain lasting more than 3 months. Body Mass Index (BMI) ≥ 25 kg/m² (overweight or obese). Body fat percentage > 25%. Numeric Pain Rating Scale (NPRS) score < 7 at baseline. Able and willing to provide written informed consent. Willing to participate in the complete 6-week intervention program.

Who cannot join

  • Non-mechanical low back pain. Acute low back pain. Previous lumbar spine surgery (e.g., laminectomy or discectomy). Spondylolisthesis. Osteoporosis or spinal fractures. Cauda equina syndrome. Current history of spinal trauma or surgery. Lumbar spine myelopathy. Diagnosed metabolic diseases. Neurological disorders affecting the spine or lower limbs. Any medical condition that would contraindicate participation in the exercise program.

Trial locations and contacts

1 site in 1 country.

Pakistan1 site
  • Elite Physical Therapy Centre

    Rawalpindi, Punjab Province

Other trials in Pakistan

About this study

Official title: Effects of Core Strengthening on Mechanical Low Back Pain in Overweight Adults.

Mechanical low back pain is one of the most common musculoskeletal disorders among overweight adults and can lead to pain, disability, and reduced quality of life. Weakness of the core muscles may contribute to poor spinal stability and persistence of symptoms. Core strengthening exercises have been proposed as an effective treatment; however, evidence regarding their additional benefit over conventional physical therapy remains limited.

This randomized controlled trial aimed to determine the effects of adding core strengthening exercises to conventional physical therapy in overweight adults with mechanical low back pain. Sixty participants aged 25-45 years with a body mass index (BMI) of 25 kg/m² or greater and chronic mechanical low back pain lasting more than three months were randomly assigned to either an experimental group or a control group.

Read more

The experimental group received core strengthening exercises (planks, side planks, and superman exercises) in addition to conventional physical therapy, while the control group received conventional physical therapy alone. Both groups also received therapeutic hot packs and transcutaneous electrical nerve stimulation (TENS). Participants attended three treatment sessions per week for six weeks.

Primary outcomes included pain intensity measured by the Numeric Pain Rating Scale (NPRS), functional disability measured by the Oswestry Disability Index (ODI), and body fat percentage measured using the Jackson-Pollock skinfold method. Outcomes were assessed before and after the six-week intervention.

The study evaluated whether adding core strengthening exercises to conventional physical therapy provides greater improvements in pain, disability, and body fat percentage in overweight adults with mechanical low back pain.

Read the detailed description

Mechanical low back pain (MLBP) is a common musculoskeletal condition and one of the leading causes of disability worldwide. Overweight and obesity increase the mechanical load on the lumbar spine, alter spinal biomechanics, and contribute to reduced physical function and persistent pain. Excess body weight, decreased physical activity, and weakness of the trunk musculature may further compromise spinal stability, increasing the likelihood of chronic low back pain.

Core muscles, including the transversus abdominis, multifidus, erector spinae, diaphragm, pelvic floor muscles, rectus abdominis, and internal and external oblique muscles, play an essential role in maintaining spinal stability and functional movement. Strengthening these muscles may improve trunk stability, reduce mechanical stress on the lumbar spine, decrease pain, and enhance functional ability. Although several studies have investigated core stabilization exercises, evidence regarding their effectiveness in overweight adults with mechanical low back pain remains inconclusive.

This study was designed as a single-blinded randomized controlled trial to compare the effects of conventional physical therapy alone with conventional physical therapy combined with core strengthening exercises in overweight adults with chronic mechanical low back pain.

A total of 60 participants aged 25-45 years with chronic mechanical low back pain of more than three months' duration, BMI ≥25 kg/m², body fat percentage greater than 25%, and Numeric Pain Rating Scale scores below 7 were enrolled. Participants with non-mechanical low back pain, previous lumbar spine surgery, spinal fractures, spondylolisthesis, osteoporosis, neurological disorders, metabolic diseases, spinal trauma, or other serious spinal pathology were excluded.

Eligible participants were randomly allocated into two equal groups.

Experimental Group

Core strengthening exercises:

Plank Side plank Superman exercise

Conventional exercises:

Bridging Knee-to-chest exercise Back extension Pelvic rotation

Baseline physical therapy:

Therapeutic hot pack Continuous Transcutaneous Electrical Nerve Stimulation (TENS) for 10 minutes

Control Group

Conventional exercises:

Bridging Knee-to-chest exercise Back extension Pelvic rotation

Baseline physical therapy:

Therapeutic hot pack Continuous TENS for 10 minutes

Participants attended three supervised treatment sessions per week for six consecutive weeks (18 treatment sessions). Each exercise was performed for 10 repetitions with a 10-second hold and standardized rest intervals. Participants were advised to avoid heavy physical activities throughout the intervention period.

Outcome measures were assessed at baseline and after completion of the intervention. Pain intensity was evaluated using the Numeric Pain Rating Scale (NPRS). Functional disability was assessed using the Oswestry Disability Index (ODI). Body fat percentage was measured using the Jackson-Pollock three-site skinfold method.

Data analysis was performed using SPSS version 21. Normality of data distribution was assessed using the Kolmogorov-Smirnov test. Because several variables were not normally distributed, non-parametric statistical tests were used. Between-group comparisons were analyzed using the Mann-Whitney U test, while within-group pre- and post-treatment comparisons were analyzed using the Wilcoxon Signed-Rank test. Statistical significance was established at a p-value less than 0.05.

The study investigated whether the addition of core strengthening exercises to conventional physical therapy would provide greater reductions in pain intensity, disability, and body fat percentage than conventional therapy alone in overweight adults with chronic mechanical low back pain. The findings are expected to contribute to evidence-based rehabilitation strategies for managing mechanical low back pain in overweight individuals and assist clinicians in selecting effective exercise interventions for this patient population.

Being tested
Core Strengthening Exercise Program + Conventional Physical Therapy, Conventional Physical Therapy
Keywords
Mechanical Low Back Pain, Core Strengthening, Overweight Adults, Superman Exercise, Conventional Physical Therapy
Medical subject headings
Low Back Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Core Strengthening Exercise Program + Conventional Physical TherapyProcedure or surgery

    Participants received a supervised exercise program consisting of core strengthening exercises (plank, side plank, and superman exercises) in addition to conventional physical therapy exercises (bridging, knee-to-chest, back extension, and pelvic rotation). Each exercise was performed for 10 repetitions with a 10-second hold. Participants also received a therapeutic hot pack and continuous transcutaneous electrical nerve stimulation (TENS) for 10 minutes before exercise. Treatment was provided three sessions per week for six weeks (18 sessions).

  • Conventional Physical TherapyProcedure or surgery

    Participants received conventional physical therapy consisting of bridging, knee-to-chest, back extension, and pelvic rotation exercises. Each exercise was performed for 10 repetitions with a 10-second hold. Participants also received a therapeutic hot pack and continuous transcutaneous electrical nerve stimulation (TENS) for 10 minutes before exercise. Treatment was provided three sessions per week for six weeks (18 sessions).

Study groups in NCT07727525
Study groupRoleWhat they receive
Experimental Group (Core Strengthening + Conventional Physical Therapy)ExperimentalParticipants assigned to the experimental arm received a combination of core strengthening exercises (plank, side plank, and superman exercises) together with conventional physical therapy exercises (bridging, knee-to-chest, back extension, and pelvic rotation). All participants also received a therapeutic hot pack and continuous transcutaneous electrical nerve stimulation (TENS) for 10 minutes. Treatment was provided three times per week for six weeks (18 sessions).
Receives: Procedure: Core Strengthening Exercise Program + Conventional Physical Therapy; Procedure: Conventional Physical Therapy
Control Group (Conventional Physical Therapy)Active comparatorParticipants assigned to the control arm received conventional physical therapy consisting of bridging, knee-to-chest, back extension, and pelvic rotation exercises. All participants also received a therapeutic hot pack and continuous transcutaneous electrical nerve stimulation (TENS) for 10 minutes. Treatment was provided three times per week for six weeks (18 sessions).
Receives: Procedure: Core Strengthening Exercise Program + Conventional Physical Therapy; Procedure: Conventional Physical Therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pain Intensity

    Pain intensity will be assessed using the Numeric Pain Rating Scale (NPRS), an 11-point scale ranging from 0 (no pain) to 10 (worst imaginable pain). Lower scores indicate reduced pain intensity.

    Measured: Baseline and after 6 weeks of intervention

  2. Functional Disability

    Functional disability will be measured using the Oswestry Disability Index (ODI). The ODI is a validated questionnaire that evaluates disability associated with low back pain. Lower scores indicate better functional status.

    Measured: Baseline and after 6 weeks of intervention

  3. Body Fat Percentage

    Body fat percentage will be measured using the Jackson-Pollock three-site skinfold method with skinfold calipers. Changes in body fat percentage will be compared before and after the intervention.

    Measured: Baseline and after 6 weeks of intervention

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Jul 2026
  2. Study start15 Jan 2023
  3. Primary completion11 May 2023
  4. Study completion30 Jun 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07727525
Sponsor's protocol ID
RIPHAH/RCRS/REC/Letter- 01410
Acronym
CORE-BACK
Status last verified
Jul 2026
First submitted
10 Jul 2026
Last updated
27 Jul 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Individual participant data (IPD) collected during this study will not be shared. The informed consent obtained from participants did not include permission for public sharing of individual-level data, and no data-sharing plan was established at the time of study initiation. De-identified aggregate study results are reported in the thesis and may be made available upon reasonable request to the corresponding investigator, subject to institutional policies and ethical considerations.

Questions about this trial

What is this clinical trial studying?

A study testing Core Strengthening Exercise Program + Conventional Physical Therapy and Conventional Physical Therapy in people with Mechanical Low Back Pain and Chronic Low Back Pain, run by Ibadat International University, Islamabad at 1 site in Pakistan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Pakistan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pain Intensity (time frame: Baseline and after 6 weeks of intervention). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jul 2026.

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