Human gait is one of the most complex motor functions of the nervous system. Abnormalities in its control are often one of the first signs of neurological damage and, at the same time, one of the main determinants of independence and quality of life. For this reason, gait analysis in neurological disorders has become a key tool for healthcare professionals, rehabilitation centres and researchers.
Hoy en día, las tecnologías de captura de movimiento, sensores inerciales y plataformas de fuerza permiten pasar de una valoración subjetiva a una evaluación cuantitativa, reproducible y clínicamente útil.
What is gait analysis in neurological disorders?
Gait analysis is the biomechanical and functional assessment of walking patterns using objective measurements. In the neurological field, its aim is to identify how an injury or disease of the nervous system affects movement.
A diferencia de la observación clínica tradicional, el análisis instrumental cuantifica parámetros cinemáticos, cinéticos y temporales, proporcionando datos precisos para la toma de decisiones terapéuticas.
Key variables analysed
- Spatio-temporal parameters: speed, stride rate, step length
- Kinematics: joint angles, symmetry, ranges of motion
- Kinetics: ground reaction forces, joint moments
- Muscle activity: EMG patterns in specific muscles
Major neurological conditions associated with gait disturbance
Las enfermedades neurológicas afectan al control motor, al equilibrio y a la coordinación, generando patrones de marcha característicos que pueden identificarse mediante análisis biomecánico.
Gait in Parkinson’s disease
Parkinsonian gait is characterised by:
- Pasos cortos y arrastrados
- Reduced arm swing
- Episodios de freezing
- Aumento del tiempo en doble apoyo
Instrumental analysis allows these changes to be quantified, the response to medication or deep brain stimulation to be assessed, and early deterioration to be detected.
Post-stroke gait
Following a stroke, hemiparesis is common, leading to marked asymmetries.
Common findings:
- Shortened stance phase on the affected side
- Leg circumduction
- Dorsiflexion deficit
- Impaired dynamic balance
Gait analysis following a stroke enables the assessment of functional recovery and the optimisation of rehabilitation programmes.
Cerebral palsy and childhood neuromotor disorders
In the paediatric population, gait analysis is essential for planning surgical, orthotic or therapeutic interventions.
Common patterns:
- Equinus gait
- Flexión persistente de rodillas
- Abnormal internal rotations
- Postural control impairments
Technological integration in neurological gait analysis
The incorporation of 2D and 3D optical motion capture systems, together with inertial sensors based on IMU (Inertial Measurement Unit) technology, makes it possible to adapt neurological gait analysis to different clinical settings and levels of complexity.
3D optical systems provide a comprehensive biomechanical analysis in the laboratory, enabling the highly accurate assessment of kinematic and kinetic variables and joint patterns in complex neurological conditions.
Meanwhile, IMU inertial systems facilitate functional assessment in standard clinical settings and even during outpatient follow-up, providing objective information on stride variability, asymmetries and dynamic stability without the need for fixed laboratory infrastructure.
The combination of 3D gait analysis and IMU technology enables the implementation of instrumental assessments based on quantifiable data, optimising therapeutic decision-making and the longitudinal follow-up of neurological patients.
The importance of instrumental analysis in clinical decision-making
The objective assessment of gait in neurological conditions enables clinical observation to be transformed into quantifiable data that can be compared over time. This is particularly relevant in conditions where the progression is gradual or where interventions must be tailored to the individual.
The use of motion capture systems, inertial sensors and force platforms facilitates:
- The early detection of subtle abnormalities
- Accurate assessment of the response to pharmacological or surgical treatments
- Longitudinal patient monitoring using reproducible metrics
- The generation of clinical reports based on objective data
In a context where medicine is increasingly oriented towards personalisation and quantifiable evidence, biomechanical gait analysis is establishing itself as a key tool in clinical neurology and advanced rehabilitation.
The motion analysis solutions developed by STT Systems integrate optical capture and IMU technology to facilitate accurate instrumental assessments in clinical neurology and advanced rehabilitation. To find out about implementation options for your laboratory or clinic, please contact us to receive detailed technical information.