Four degree-of-freedom lumped parameter model of the foot-ankle system exposed to vertical vibration from 10 to 60 Hz with varying centre of pressure conditions

Modelling the foot-ankle system (FAS) while exposed to foot-transmitted vibration (FTV) is essential for designing inhibition methods prevent effects of vibration-induced white-foot. K-means analysis was conducted on a data set containing transmissibility from floor 24 anatomical locations right foot 21 participants. The found three be sufficient summarising FTV response. A segment, four degrees-of-freedom lumped parameter model FAS designed response at when vertical 10 60 Hz. Reasonable results were ankle, midfoot, and toes in natural standing position (mean-squared error (ε) = 0.471, 0.089, 0.047) forward centre pressure (COP) (ε 0.539, 0.058, 0.057). However, COP backward, does not sufficiently capture ankle 1.09, 0.219, 0.039). Practitioner summary modelled with varying locations. using two segments (rearfoot forefoot) demonstrated reasonable test future intervention strategies. Abbreviations: COP: pressure; DOF: degrees-of-freedom; FAS: system; FTV: vibration; HAVS: hand-arm syndrome; LDV: laser Doppler vibrometer; LP: lumped-parameter; VWT: white-toes; WBV: whole-body