The lamellipodial shapes predicted by the model. For all shapes, the total constant lamellipodial area
A is the unit of area, and the unit of length is equal to
. (a) Two shapes characterized by the exponents of the force–velocity relation
w = 2, 6;
α = 3,
β = 2.5 (the leading and rear edges are flatter for higher values of
w). (b) Three shapes characterized by the breaking/stall force ratios
α = 2, 3, 4;
β = 2.5,
w = 6 (the higher the ratio, the greater the front-to-rear width of the lamellipodium). (c) Three shapes characterized by the non-dimensionalized disassembly rates
β = 1.5, 2.5, 3.5;
α = 3,
w = 6 (the greater the disassembly rate, the smaller the front-to-rear width of the lamellipodium).