Figure 8
From: Growth and remodeling play opposing roles during postnatal human heart valve development

Importance of growth and remodeling kinetics. The relative rates k of growth (k = kg) and remodeling (k = kr) with respect to the environmental changes were altered to study their effects on the temporal stretch evolution. Three cases were investigated for early (a–c) and late-stage (d–f) development: (a,d) changing growth rate kg and remodeling rate kr simultaneously, (b,e) changing only the growth rate kg while kr = 0, and (c,f) changing only the remodeling rate kr while kg = 0. Growth and remodeling occurred with the same rate as the environmental changes if k = 0, initially slower if k < 0; and initially faster if k < 0. The three-dimensional circumferential stretch distributions are shown halfway the developmental steps at time point 0.5 for kg = ±3 and/or kr = ±3.