Background: Until a few years ago, lower limb amputees’ ability to run was constrained by the materials used in their prosthetic components, which typically did not facilitate the proper dynamics necessary for movement at slower speeds. However, many lower limb amputees can now engage in running as a sport, thanks to newly developed components for recreational activities. This research examined the mechanical and miscibility properties of prosthetic feet from experimental, mathematical, and numerical perspectives to provide an athletic prosthetic foot that offers enhanced performance, ease of use, and affordability for amputees with lower limb loss, helping them overcome physical limitations and participate in sports. These findings highlight the intriguing potential of biodegradable feet for orthopedic applications and the promising advancements in biomedical engineering through increased durability and biocompatibility.