Abstract (EN):
Gait is a complex mechanism which involves the action
of the musculoskeletal system, controlled by spinal and
supraspinal mechanisms [1]. After Cerebrovascular
Accident (CVA), or stroke, the damage of structures
involved in motor control from one side of the brain, can
cause activation deficits in the muscles from the
contralesional (CONTRA) side of the body ¿
hemiparesis, leading to asymmetry in the gait pattern
[2]. In gait analysis, a set of experimental methods have
ben used to study the gait of one subject, including based
on: visual analysis, collection of kinematic parameters
acquired using cameras and reflective body markers,
kinetic analysis using force platforms to determine the
ground reaction force (GRF) and electromyography.
Due to the recent technological advances, it became
possible to create and implement complex dynamical
multi-segmented models of the human body with
several degrees-of-freedom to perform simulations from
experimental data [3]. OpenSim is an open-source
software developed in Stanford University that allows
the creation of models of the musculoskeletal system
and the development of subject-specific simulations of
several tasks [4].
The present work describes a procedure used to perform
a simulation in OpenSim of a healthy and a post-stroke
individual, using real experimental data. The kinematic
parameters were determined as well as the activation of
two calf muscles: soleus (SOL) and medial
gastrocnemius (MEDGAS).
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
1
Tipo de Licença: