Skip to main content
OpenTrials
Completed

NCT Number: NCT07611669

Effects of Mezieres Method on Muscle Imbalance, Body Awareness and Postural Alignment in Athletes With Lower Back Pain.

The current study is a randomized controlled trial aims to compare the effectiveness of the Mezieres Method combined with core stabilization versus routine physiotherapy involving core stabilization on muscle imbalance, body awareness, and postural alignment in athletes with lower back pain. Eligible participants will be randomly allocated into two groups: an experimental group receiving the Mezieres Method plus core stabilization exercises and a control group receiving routine physiotherapy treatment involving core stabilization alone. Outcomes related to muscle imbalance, body awareness, postural alignment, and pain/function will be assessed before and after the intervention period. The study seeks to determine whether the Mezieres Method combined with core stabilization provides additional benefits in athletes with lower back pain.

Completed

Looking for future studies?

Notify Me

Key information

Age range

18 year–35 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Green International University

Lahore, Punjab Province, 54000, Pakistan

About this study

Low back pain (LBP) is the type of musculoskeletal problems affecting athletes in many sports, and it is approximately about 80% of them experience at least one episode during their career and many of them later develops long duration or recurrent pain that definitely impact performance, training routine and also day-today quality of life . Lower back pain is one of the most common musculoskeletal conditions worldwide, particularly among athletes because of repetitive strain, poor biomechanics, and muscle imbalances. In the world wide, studies estimate that nearly 60-80% of individuals experience low back pain at some point in their lives, with a point prevalence of about 7-12% in the total population and even higher rates reported in athletic populations due to intensive physical demands. In sports communities, the prevalence can range from 20% to 50%, depending on the type of sport, training intensity, and postural habits. Locally, in countries like Pakistan, the burden of low back pain is also significantly high, although underreported; hospital-based and regional studies suggest prevalence rates ranging from 30% to 70% among adults, with athletes and physically active individuals being at increased risk due to inadequate conditioning, poor posture, and lack of body awareness. These rising trends focused the importance of effective rehabilitation approaches such as the Mezieres method, which mostly focuses on correcting muscle imbalance, improving body awareness, and restore the good postural alignment. In early morning many athletes often complain more stiffness and they are type of more predisposed to LBP because of routine mechanical loading, postural strains, asymmetric movements and high demands on spinal flexibility and strength. Sports like gymnastics, soccer and dance place unusual stress on the lumbar region through repeated hyperextension, twisting and high-impact movements, which sort of increase the risk even more. These biomechanical stresses can lead to muscle imbalance, postural changes and sometimes impaired neuromuscular control, and all of this basically keep the pain going with functional limitation. The pathophysiology of LBP in athletes sometimes includes multifactorial origins including poor lumbopelvic stability, weak core muscles and asymmetrical tension in posterior muscular chains. This muscular imbalance can disrupt spinal alignment and even change the proprioceptive control so athletes start using compensatory movement patterns and recurrent injury kind of occurred again. Traditional physical therapy usually emphasis on strengthening the core, better flexibility and decrease pain with therapeutic exercises and manual therapy. Core stabilization exercises in especially have shown good efficacy on patients in improving spinal stability, posture and reducing LBP intensity. So the present study is purpose to compare effects of Mezieres Method combined with core stabilization exercises to routine physiotherapy (core stabilization exercises alone) on muscle imbalance, body awareness and postural alignment in athletes with lower back pain. And by doing so it seeks to determine whether integration of global postural re-education offers additional benefits over conventional therapeutic practices and whether difference between groups is clinically meaningful for athletes who receive these treatments.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Diagnosed with non-specific LBP lasting at least three months with following test (Straight Leg Raise Test, Slump Test, Schober's Test )
  • Athletes aged 18-35 years of either gender
  • Athletes should exhibit signs of postural imbalance or muscular chain dysfunction
  • Functional limitation related to posture or movement.
  • Patient undergoing physiotherapy intervention for musculoskeletal disorders.
  • Reduced trunk mobility, impaired postural alignment, or functional defects.

Exclusion criteria

  • History of spinal surgery, fracture, or structural deformity (e.g., scoliosis, spondylolisthesis).
  • Neurological or systemic disorders affecting balance or muscle control
  • Current use of medications that may effect musculoskeletal performance (e.g., corticosteroids, muscle relaxants)
  • Pregnancy or any contraindication to physical activity

Treatment and study plan

Mezieres method plus core stabilization

Other

Participants in Group A was receive Mezières method therapy, focusing on progressive stretching and postural correction aimed at restoring muscle balance and improving awareness of body alignment. Sessions was target major posterior chain muscles, including the erector spinae, hamstrings, and gluteal muscles, using slow, sustained stretching techniques. Each Mezières session was last 30-35 minutes, followed by core stabilization exercises for 15-20 minutes, including plank variations, bridging exercises, and abdominal hollowing techniques to enhance trunk stability. Interventions was administered 3 times per week for 6 weeks by a trained physiotherapist.

Other names: Group A intervention

Routine physiotherapy (core stabilization)

Other

Participants in Group B was perform the same core stabilization exercises as Group A, without Mezières intervention. Exercises was target deep abdominal muscles, multifidus, and pelvic stabilizers, purpose is to improve trunk stability and support postural alignment. Each session was last 20-25 minutes, conducted 3 times per week for 6 weeks, under supervision to ensure correct technique and progression.

Other names: Group B intervention

Primary outcomes

  1. Muscle Imbalance

    Time frame: Baseline and after six weeks

    Muscle imbalance refers to unequal strength or flexibility between opposing lumbar pelvic muscle groups. Muscle imbalance will be assessed using the NYPRC postural alignment and muscle imbalance assessment protocol. The NYPRC evaluates postural deviations and muscle imbalance patterns through observational assessment of body alignment in standing posture. Scores are assigned to different body segments, with lower scores indicating greater postural deviation and muscle imbalance and higher scores indicating better alignment.

  2. Postural Alignment

    Time frame: Baseline and after six weeks

    Postural alignment refers to the biomechanical positioning of the spine and pelvis across sagittal, frontal, and transverse planes. The New York Posture Rating Chart (NYPRC) is used to evaluate postural alignment and stability by assessing different body segments. Interpretation: Scores are assigned based on alignment of body parts (head, shoulders, spine, pelvis, etc.) Higher total score = better posture and stability Lower score = poor posture or imbalance

Secondary outcomes

  1. Body Awareness

    Time frame: Baseline and after six weeks

    Body awareness describes one's conscious perception and control of body position and movement. It was measured using the validated Body Awareness Questionnaire (BAQ). Higher scores reflect better proprioceptive integration. Improvements was supported by participants' subjective reports of enhanced comfort, control, and movement confidence during functional tasks.

  2. Pain Intensity

    Time frame: Baseline and after six weeks

    Pain intensity represents the participant's subjective level of lower back discomfort. It was evaluated using the VAS, ranging from 0 to 10. A clinically meaningful change is defined as a reduction of two or more points, as supported by previous athletic rehabilitation trials.

Sponsors and collaborators

Lead sponsor

Green International University

Other

Registry information

Acronym: MEZ-LBP

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
May 28, 2026
Registry last updated
May 28, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.