<p>Results of linear model fitting, including individual and interaction terms. Each term in the model is normalized to its range (Table 2). Coefficient estimates represent the relative “importance” of that term. Estimates and standard error are shown to one significant digit. Bolded values represent a coefficient estimate with magnitude : <i>i.e.,</i> effects that are “important to first order”. Note that all individual coefficients are important to first order except for activation and stiffness; however, together these have the only interaction coefficient with magnitude .</p>

Results of linear model fitting, including individual and interaction terms. Each term in the model is normalized to its range (Table 2). Coefficient estimates represent the relative “importance” of that term. Estimates and standard error are shown to one significant digit. Bolded values represent a coefficient estimate with magnitude : i.e., effects that are “important to first order”. Note that all individual coefficients are important to first order except for activation and stiffness; however, together these have the only interaction coefficient with magnitude .