Fig. 6. Log₁₀/log₁₀ bivariate scatterplots with regression lines of correlations between kinematic variables and pressure variables to show (A) and (B) significant main effects with approximately parallel (homogenous) slopes; and (C) a significant interaction effect with regression lines that diverge from one another. Regression equations: (A) individual 1, y=-0.29x+1.88, r²=0.55; individual 2, y=-0.12x+1.50, r²=0.30; individual 3, y=-0.17x+1.64, r²=0.67; individual 4, y=-0.80x+3.31, r²=0.65; individual 5, y=-0.41x+2.22, r²=0.41; (B) individual 1, y=0.88x-0.07, r²=0.62; individual 2, y=0.66x+0.34, r²=0.26; individual 3, y=0.84x-0.35, r²=0.87; individual 4, y=1.74x-2.32, r²=0.62, individual 5, y=0.91x-0.05, r²=0.49; (C) individual 1, y=0.81x-0.55, r²=0.63; individual 2, y=-1.52x-2.80, r²=0.71; individual 3, y=-2.08x-3.34, r²=0.84; individual 4, y=0.53x-0.22, r²=0.28; individual 5, y=-0.61x-1.47, r²=0.52. See text for explanation.