ABSTRACT
Objetivo Determinar si un sistema basculante ubicado en el asiento de una silla favorece la realización de movimientos voluntarios de macro reposicionamiento de pelvis para mitigar la percepción de dolor en postura sedente prolongada. Método Ocho mujeres participaron en la prueba y permanecieron sentadas en sillas con y sin basculación durante 60 minutos, en dos jornadas diferentes conservando la hora de la prueba. La incomodidad fue evaluada con una escala visual analógica. Resultados Se encontró que las personas usaron el sistema basculante para realizar cambios posturales de macro reposicionamientos, sin embargo los realizados por éste son menores a los realizados por el mismo cuerpo, es decir sin ayuda del sistema. Además, la percepción de incomodidad fue igual en las dos sillas, posiblemente porque la cantidad total de macro reposicionamientos no varió. Conclusión Se sugiere que estudios futuros contemplen el diseño de sistemas basculantes que suministren macro reposicionamientos de forma controlada y no de forma voluntaria como se realizó en este trabajo. Así como estudiar si este tipo de sistemas automáticos permite mitigar la incomodidad debida al tiempo prolongado en postura sedente.(AU)
Objective To determine whether a tilting system located in the seat of a chair allows for performing voluntary macro-repositioning movements of the pelvis in order to reduce the perception of pain after a prolonged period in the sitting posture. Methods Eight women participated in the experiment. They were asked to sit on the chair with the tilting system and the chair without the tilting system for sixty minutes on two different days but carried out at the same time of day. Discomfort was assessed with the visual analogic scale. Results people used the tilting system to do postural changes of macro-repositioning. However, these movements were less than the movements done with the body, not using the system. Moreover, discomfort perception was the same for each chair. This might be due to the fact that total of macro-repositioning movements did not change. Conclusion Future research should evaluate the effect of tilting systems that provide macro-repositioning in a controlled form, not like in this study. Also, it is necessary to study if these types of automatic systems contribute to the reduction of the discomfort due to a prolonged period in the sitting posture.(AU)
Subject(s)
Humans , Adult , Low Back Pain , Sitting Position , Movement , Colombia , Visual Analog ScaleABSTRACT
Objective To determine whether a tilting system located in the seat of a chair allows for performing voluntary macro-repositioning movements of the pelvis in order to reduce the perception of pain after a prolonged period in the sitting posture. Methods Eight women participated in the experiment. They were asked to sit on the chair with the tilting system and the chair without the tilting system for sixty minutes on two different days but carried out at the same time of day. Discomfort was assessed with the visual analogic scale. Results people used the tilting system to do postural changes of macro-repositioning. However, these movements were less than the movements done with the body, not using the system. Moreover, discomfort perception was the same for each chair. This might be due to the fact that total of macro-repositioning movements did not change. Conclusion Future research should evaluate the effect of tilting systems that provide macro-repositioning in a controlled form, not like in this study. Also, it is necessary to study if these types of automatic systems contribute to the reduction of the discomfort due to a prolonged period in the sitting posture.
