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Biomechanical Changes Related to Low Back Pain: An Innovative Tool for Movement Pattern Assessment and Treatment Evaluation in Rehabilitation
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Posturography Comparison and Discriminant Analysis Between Individuals With and Without Chronic Low Back Pain
Jéssyca Fernandes Nogueira1, Aline Cristina Carrasco1, Alexandre Roberto M Pelegrinelli2
1Laboratory of Biomechanics and Clinical Epidemiology, PAIFIT Research Group, Universidade Estadual de Londrina, Londrina, Paraná, Brazil.
Journal of Manipulative and Physiological Therapeutics
|July 29, 2020
Summary
Individuals with chronic low back pain (LBP) exhibit poorer postural control compared to healthy individuals. Specific center of pressure (CoP) variables can effectively differentiate between these groups, aiding in diagnosis.
Area of Science:
- Biomechanics
- Neurology
- Physical Therapy
Background:
- Chronic low back pain (LBP) is a prevalent condition affecting millions globally.
- Postural control deficits are frequently observed in individuals with LBP, impacting daily function.
- Understanding these deficits is crucial for developing targeted interventions.
Purpose of the Study:
- To compare the center of pressure (CoP) measures between individuals with chronic LBP and matched healthy controls.
- To identify specific CoP variables that can discriminate between these two groups using discriminant analysis.
Main Methods:
- Thirty-two individuals with LBP and 33 controls participated.
- Evaluations were conducted using a force plate in a static bipedal stance for 30 seconds.
- Two conditions were tested: eyes open (EO) and eyes closed (EC).
Main Results:
- Individuals with LBP demonstrated significantly higher CoP sway measures (e.g., total displacement of sway, area) compared to controls in both EO and EC conditions.
- Discriminant analysis identified key differentiating CoP variables, including total displacement of sway (EO), anteroposterior mean velocity (EO), mediolateral dispersion (EC), and area (EC).
Conclusions:
- Individuals with chronic LBP exhibit impaired postural control compared to healthy individuals.
- Specific CoP variables can reliably differentiate between individuals with and without chronic LBP, offering potential for diagnostic and assessment tools.
