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Updated: Aug 26, 2025

Biomechanical Changes Related to Low Back Pain: An Innovative Tool for Movement Pattern Assessment and Treatment Evaluation in Rehabilitation
Published on: December 13, 2024
Motion analysis in patients with postpartum sacroiliac joint dysfunction: A cross-sectional case-control study
Sem M M Hermans1, Evy M B Paulussen2, Remi A J Notermans3
1Department of Orthopedic Surgery and Traumatology, Zuyderland Medical Center, Heerlen, The Netherlands; Care and Public Health Research Institute (CAPHRI) Maastricht University, Maastricht, The Netherlands.
Patients with sacroiliac joint dysfunction exhibit impaired gait and balance issues, affecting daily activities. This study quantifies these deficits compared to healthy individuals, aiding in understanding the condition and therapy effectiveness.
Area of Science:
- Biomechanics
- Movement Science
- Clinical Biomechanics
Background:
- Sacroiliac joint dysfunction significantly impacts daily activities like walking and rising.
- Chronic low back pain is associated with impaired balance in individuals.
- Understanding movement impairments is crucial for managing sacroiliac joint dysfunction.
Purpose of the Study:
- To investigate spatiotemporal gait parameters, center of pressure/mass, and joint angles in sacroiliac joint dysfunction patients.
- To compare these parameters between patients with sacroiliac joint dysfunction and healthy controls.
- To elucidate the functional limitations associated with sacroiliac joint dysfunction.
Main Methods:
- A cross-sectional case-control study design was employed.
- Motion analysis included normal gait, single-leg-stance, and sit-to-stance tasks.
- Three-dimensional motion capture and force platforms were utilized for data collection.
Main Results:
- Patients demonstrated slower walking speed, reduced cadence, and longer double support times during gait.
- Single-leg-stance revealed smaller hip angles in the lifted leg and increased center of pressure variability in patients.
- Sit-to-stance task completion time was nearly doubled in patients compared to controls.
Conclusions:
- Sacroiliac joint dysfunction leads to significant impairments in gait and balance.
- Quantified movement deficits provide insights into the pathology and burden of the condition.
- Findings may inform the evaluation of therapeutic interventions for sacroiliac joint dysfunction.

