Influencia de los cambios de posición de cabeza y cuello en el plano sagital sobre control postural bípedo medido a través de posturografía
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Archivos
Fecha
2009
Autores
González Ibarra, Paula
Páez Veliz, Ana María
Profesor/a Guía
Facultad/escuela
Idioma
es
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
El control motor es ejecutado por las características viscoelásticas de los
músculos, así como por la información sensorio visual, vestibular y
somatosensorial, siendo la propiocepción una de las fuentes sensoriales que
tiene mayor importancia en el control motor. La propiocepción cervical es uno
de los principales inputs propioceptivos, lo que se ve reflejado por la
abundancia de mecarreceptores cervicales y sus conexiones centrales y reflejas
a los sistemas vestibulares, visuales y sistema nervioso central. Las
disfunciones musculoesqueléticas de la región cervical pueden causar
alteraciones en el funcionamiento de los propioceptores que trae como
consecuencia una alteración en el control motor. El control motor es objetivable
a través de la posturografía, la cual analiza los movimientos del centro de
presión en distintas circunstancias.
El objetivo de este seminario es estudiar la influencia de los cambios de
posición de cabeza y cuello en el plano sagital sobre el control postura! bípedo
medido a través de posturografía. El seminario es de tipo cuasiexperimental
natural, la muestra está constituida por 21 estudiantes universitarios sanos, los
que fueron incluidos según criterios de inclusión y exclusión definidos, se les
evaluó sus parámetros posturográficos en 3 etapas ,con 30 segundos de
duración cada una, la primera etapa el paciente permanece sobre la plataforma
con flexión máxima voluntaria, luego con posición neutra y la última etapa con
extensión máxima voluntaria de cabeza y cuello, con el fin de determinar la
influencia de la posición de cabeza y cuello sobre el control postura! bípedo. Los
datos fueron analizados por el software minitab 15 versión en español,
utilizando la prueba estadística t student. Los resultados muestran que no
existen diferencias significativas, por lo que se concluye que los cambios de
posición de cabeza y cuello en el plano sagital no inciden significativamente en
el control motor.
Motor control is executed by the viscoelastic properties of muscles, visual sensory information, and vestibular and somatosensory skills, and most importantly, proprioception. Cervical proprioception is one of the major proprioceptive inputs, which is reflected by the abundance of cervical mecarreceptores and their central connections reflecting vestibular, visual, and CNS systems. Musculoskeletal dysfunctions of the cervical region can cause changes in the functioning of the proprioceptors, which result in impaired motor control. Motor control is objectified by posturography, which analyzes the movements of the center of pressure in different circumstances. The objective of this seminary is to study the influence of head and neck position changes in the sagittal plane on the measured bipedal postura! control through posturography. This is a natural, quasi-experimental seminary. The sample was composed of 21 healthy co/lege students who were selected based on inclusion and exclusion judgements defined, they were assessed for their posturography parameters in 3 stages, with 30 seconds duration each, in he first stage, the patient remains on the platform with maximum voluntary , then with neutral position , and in the last stage with maximum voluntary extension of head and neck in order to determine the influence of the head and neck position over the bipedal postura! control. The data were analyzed by the Minitab 15 software version in Spanish, using the t-student statistic test, we tñed to determine the existence of significant differences in the sagittal plane between the different head and neck positions. The results show no significant, it is concluded that influence of head and neck position change in the sagittal plane did not significantly affect motor control.
Motor control is executed by the viscoelastic properties of muscles, visual sensory information, and vestibular and somatosensory skills, and most importantly, proprioception. Cervical proprioception is one of the major proprioceptive inputs, which is reflected by the abundance of cervical mecarreceptores and their central connections reflecting vestibular, visual, and CNS systems. Musculoskeletal dysfunctions of the cervical region can cause changes in the functioning of the proprioceptors, which result in impaired motor control. Motor control is objectified by posturography, which analyzes the movements of the center of pressure in different circumstances. The objective of this seminary is to study the influence of head and neck position changes in the sagittal plane on the measured bipedal postura! control through posturography. This is a natural, quasi-experimental seminary. The sample was composed of 21 healthy co/lege students who were selected based on inclusion and exclusion judgements defined, they were assessed for their posturography parameters in 3 stages, with 30 seconds duration each, in he first stage, the patient remains on the platform with maximum voluntary , then with neutral position , and in the last stage with maximum voluntary extension of head and neck in order to determine the influence of the head and neck position over the bipedal postura! control. The data were analyzed by the Minitab 15 software version in Spanish, using the t-student statistic test, we tñed to determine the existence of significant differences in the sagittal plane between the different head and neck positions. The results show no significant, it is concluded that influence of head and neck position change in the sagittal plane did not significantly affect motor control.
Notas
Tesis (Kinesiólogo)
Palabras clave
Postura Humana, Control motor