Quantitative evaluation of the major determinants of human gait

Age-related differences in pelvic and trunk motion and gait adaptability at different walking speeds

“…Similar to previous studies, our data also suggest that most of the biomechanical parameters depend on gait speed (Barak et al, 2006;Bejek et al, 2006;Guimaraes and Isaacs, 1980;Wagenaar and Beek, 1992). The differences in gait between younger and older subjects presented in the literature with respect to the spatio-temporal parameters of the stride are confirmed in this study (Alexander, 1996;Doyo et al, 2011;Guimaraes and Isaacs, 1980;Lin et al, 2014). We were able to identify age-related changes of gait function through differences in the kinematics, as well as in the dynamic behavior of pelvic and trunk angular motion patterns.…”

“…Pelvic list is a mechanism to lower the position of the COM during the single limb stance phase, and thus decreases the COM height at its highest point during the gait cycle. Pelvic list also contributes most significantly to the medio-lateral displacement of the COM in the coronal plane (Lin et al, 2014). Both pelvic transverse and pelvic list rotations were suggested to be used as strategies to control/reduce vertical COM motion, and thus reduce energy costs of gait.…”

“…Both pelvic transverse and pelvic list rotations were suggested to be used as strategies to control/reduce vertical COM motion, and thus reduce energy costs of gait. Any movement of the COM, from side-to-side or up and down, will waste energy (Lin et al, 2014;Malatesta et al, 2003). To improve energy efficiency, the younger adults controlled their body COM motion using pelvic rotations, while the older adults controlled their body COM motion using smaller strides.…”

“…Few studies have concentrated on age-related changes and adaption strategies in pelvic and trunk kinematics at various walking speeds. In this study we analyze the pelvic transverse rotation and pelvic list (i.e., pelvic drop of the swinging leg), as it was shown that these help control Center of Mass (COM) translation during walking, and since they are important for reducing energy consumption (Lin et al, 2014). Further, we studied the trunk rotation, as it was found that it helps compensate for pelvic angular movements (Patla et al, 1999).…”

Asociación entre el estado nutricional y la prevalencia de pie plano en niños chilenos de 6 a 10 años de edad

“…(14), al estudiar el comportamiento del ángulo de la huella plantar tanto en hombres como en mujeres en ambos pies, mostraron una mayor diferencia en los tipos de pies derecho e izquierdo en el grupo de los hombres, mientras que al analizar los pies del mismo grupo de evaluados a través del índice de Chippaux-Smirak las mayores diferencias fueron observadas en el grupo de mujeres, lo que da cuenta de la influencia de la metodología utilizada en la clasificación obtenida en los tipos de pies, aspecto que había sido destacado por otros autores (27). Sin embargo, consideramos relevante señalar que, independientemente de cuál sea la causa de esta diferencia, desde un punto de vista clínico ya es importante el hallazgo de pie plano en uno de los pies de un niño, dado que es indicativo de un diagnóstico de alteración en la morfología de esta estructura, condicionando una alteración mecánica que afectará a la postura y la motricidad (8,16,17).…”