Parameter determination for a computer simulation model of a diver and a springboard.
This study used kinematic data on springboard diving performances to estimate viscoelastic parameters of a planar model of a springboard and diver with wobbling masses in the trunk, thigh, and calf segments and spring dampers acting at the heel, ball, and toe of the foot segment. A subject-specific angle-driven eight-segment model was used with an optimization algorithm to determine viscoelastic parameter values by matching simulations to four diving performances. Using the parameters determined from the matching of a single dive in a simulation of another dive resulted in up to 31% difference between simulation and performance, indicating the danger of using too small a set of kinematic data. However, using four dives in a combined matching process to obtain a common set of parameters resulted in a mean difference of 8.6%. Because these four dives included very different rotational requirements, it is anticipated that the combined parameter set can be used with other dives from these two groups.
Yeadon
Maurice R
MR
School of Sport and Exercise Sciences, Loughborough University, Loughborough, UK.
Kong
Pui W
PW
King
Mark A
MA
D000054:Acceleration; D000328:Adult; D000886:Anthropometry / Q000379:methods*; D001696:Biomechanical Phenomena / Q000379:methods*; D003198:Computer Simulation; D004242:Diving / Q000502:physiology*; D004548:Elasticity; D005260:Female; D006801:Humans; D008954:Models, Biological; D009068:Movement / Q000502:physiology*; D019876:Sports Equipment; D013314:Stress, Mechanical; D014783:Viscosity